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NUAL ATION EVALU FOLLO High-Speed, Low-Power, Single-Supply, Mult
Top Searches for this datasheet19-1379; 4/99 NUAL ATION EVALU FOLLO High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers Single-Supply Operation Down 345MHz -3dB Bandwidth (MAX4311) 150MHz -3dB Bandwidth (MAX4313) 540V/µs Slew Rate (MAX4313) 6.1mA Quiescent Supply Current 40ns Channel Switching Time Ultra-Low 10mVp-p Switching Transient 0.06%/0.08° Differential Gain/Phase Error Rail-to-Rail Outputs: Drives within 730mV Rails Input Common-Mode Range Includes Negative Rail Low-Power Shutdown Mode Available Space-Saving 8-Pin µMAX 16-Pin QSOP Packages MAX4310-MAX4315 MAX4310-MAX4315 single-supply mux-amps combine high-speed operation, low-glitch switching, excellent video specifications. products this family differentiated number multiplexer inputs gain configuration. MAX4310/MAX4311/MAX4312 integrate 2-/4-/8-channel multiplexers, respectively, with adjustable gain amplifier optimized unity-gain stability. MAX4313/MAX4314/MAX4315 integrate 2-/4-/8-channel multiplexers, respectively, with +2V/V fixed-gain amplifier. devices have 40ns channel switching time 10mVp-p switching transients, making them ideal video-switching applications. They operate from single +10.5V supply, from dual supplies ±5.25V, they feature Rail-to-Rail® outputs input common-mode voltage range that extends negative supply rail. MAX4310/MAX4311/MAX4312 have -3dB bandwidth 280MHz/345MHz/265MHz 460V/µs slew rate. MAX4313/MAX4314/MAX4315, with 150MHz/127MHz/ 97MHz -3dB bandwidths 540V/µs slew rate, fixed gain +2V/V, ideally suited driving backterminated cables. Quiescent supply current 6.1mA, while low-power shutdown mode reduces supply current 560µA places outputs high-impedance state. MAX4310-MAX4315's internal amplifiers maintain open-loop output impedance only over full output voltage range, minimizing gain error bandwidth changes under loads typical most rail-to-rail amplifiers. With differential gain phase errors 0.06% 0.08°, respectively, these devices ideal broadcast video applications. Ordering Information PART MAX4310EUA MAX4310ESA MAX4311EEE MAX4311ESD MAX4312EEE MAX4312ESE MAX4313EUA MAX4313ESA MAX4314EEE MAX4314ESD MAX4315EEE MAX4315ESE TEMP. RANGE -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C PIN-PACKAGE µMAX QSOP Narrow QSOP Narrow µMAX QSOP Narrow QSOP Narrow Applications Video Signal Multiplexing Video Crosspoint Switching Flash Input Buffers Video Cable Drivers High-Speed Signal Processing Broadcast Video Medical Imaging Multimedia Products Configurations Typical Operating Circuit appear data sheet. Rail-to-Rail registered trademark Nippon Motorola, Ltd. Selector Guide PART MAX4310 MAX4311 MAX4312 MAX4313 MAX4314 MAX4315 INPUT CHANNELS AMPLIFIER GAIN (V/V) PIN-PACKAGE 8-Pin SO/µMAX 14-Pin Narrow 16-Pin QSOP 16-Pin Narrow SO/QSOP 8-Pin SO/µMAX 14-Pin Narrow 16-Pin QSOP 16-Pin Narrow SO/QSOP Maxim Integrated Products free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 1-800-835-8769. High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC VEE) .12V Input Voltage.(VEE 0.3V) (VCC 0.3V) Other Pins .(VEE 0.3V) (VCC 0.3V) Output Current.±120mA Short-Circuit Duration (VOUT GND, VEE) .Continuous Continuous Power Dissipation +70°C) 8-Pin (derate 5.9mW/°C above +70°C).471mW 8-Pin µMAX (derate 4.1mW/°C above +70°C) .330mW 14-Pin (derate 8.3mW/°C above +70°C).667mW 16-Pin (derate 8.7mW/°C above +70°C).696mW 16-Pin QSOP (derate 8.3mW/°C above +70°C).667mW Operating Temperature Range .-40°C +85°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10sec) .+300°C Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability. ELECTRICAL CHARACTERISTICS (VCC +5V, SHDN VOUT 2.5V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER Operating Supply Voltage Range SYMBOL CONDITIONS Inferred from PSRR test MAX4310/MAX4311/MAX4312, inferred from CMRR test MAX4313/MAX4314/1MAX4315, inferred from output voltage swing CMRR TCVOS 2.2V, MAX4310/MAX4311/MAX4312 only 0.035 0.035 ±5.0 ROUT MAX4310/MAX4311/ MAX4312 only Open loop Closed loop, +1V/V IIN_ IFB, MAX4310/MAX4311/MAX4312 only MAX4310/MAX4311/MAX4312 only varied over VCM, MAX4310/MAX4311/ MAX4312 only 0.025 0.025 10.5 µV/°C UNITS Input Voltage Range Common-Mode Rejection Ratio Input Offset Voltage Input Offset Voltage Drift Input Offset Voltage Matching Input Bias Current Feedback Bias Current Input Offset Current Common-Mode Input Resistance Differential Input Resistance Output Resistance MAX4313/MAX4314/MAX4315 Disabled Output Resistance Open-Loop Gain Voltage Gain ROUT AVOL AVCL MAX4310/MAX4311/MAX4312, open loop MAX4313/MAX4314/MAX4315 MAX4310/MAX4311/MAX4312, GND, 0.25V VOUT 4.2V MAX4313/MAX4314/MAX4315, GND, 0.25V VOUT 4.2V High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers ELECTRICAL CHARACTERISTICS (continued) (VCC +5V, SHDN VOUT 2.5V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER SYMBOL Output Voltage Swing VOUT Output Current Power-Supply Rejection Ratio Quiescent Supply Current Shutdown Supply Current Logic-Low Threshold Logic-High Threshold Logic-Low Input Current Logic-High Input Current -500 -320 IOUT PSRR 4.0V 10.5V MAX4310/MAX4313 MAX4311/MAX4314 MAX4312/MAX4315 SHDN LOGIC CHARACTERISTICS (SHDN, CONDITIONS 0.73 0.03 0.25 0.04 0.06 0.07 UNITS MAX4310-MAX4315 ELECTRICAL CHARACTERISTICS +5V; SHDN 150; 1.5V; +1V/V (MAX4310/MAX4311/MAX4312), +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX4310 MAX4311 -3dB Bandwidth BW(-3dB) VOUT 100mVp-p MAX4312 MAX4313 MAX4314 MAX4315 MAX4310 MAX4311 -0.1dB Bandwidth BW(-0.1dB) VOUT 100mVp-p MAX4312 MAX4313 MAX4314 MAX4315 UNITS High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 ELECTRICAL CHARACTERISTICS (continued) +5V; SHDN 150; 1.5V; +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) PARAMETER SYMBOL CONDITIONS CONDITIONS MAX4310 MAX4311 Full-Power Bandwidth FPBW VOUT 2Vp-p MAX4312 MAX4313 MAX4314 MAX4315 MAX4310 MAX4311 Slew Rate VOUT 2Vp-p MAX4312 MAX4313 MAX4314 MAX4315 Settling Time 0.1% Gain Matching VOUT step MAX4310/MAX4311/MAX4312 MAX4313/MAX4314/MAX4315 0.05 V/µs UNIT Matching between channels over -3dB bandwidth AVCL +1V/V, VCC/2 VCC/2 AVCL +1V/V, VCC/2 VCC/2 MAX4310/MAX4311/MAX4312 0.06 Differential Gain Error MAX4313/MAX4314/MAX4315 0.09 MAX4310/MAX4311/MAX4312 0.08 degrees Differential Phase Error MAX4313/MAX4314/MAX4315 MAX4310/ MAX4311/ MAX4312 3kHz 2MHz 20MHz 3kHz 2MHz 20MHz 0.03 Spurious-Free Dynamic Range SFDR VOUT 2Vp-p MAX4313/ MAX4314/ MAX4315 1MHz, VOUT 2Vp-p 1MHz, VOUT 2Vp-p Second Harmonic Distortion Third Harmonic Distortion Total Harmonic Distortion MAX4310/MAX4311/MAX4312 MAX4313/MAX4314/MAX4315 MAX4310/MAX4311/MAX4312 MAX4313/MAX4314/MAX4315 MAX4310/MAX4311/MAX4312 MAX4313/MAX4314/MAX4315 1MHz, VOUT 2Vp-p High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers ELECTRICAL CHARACTERISTICS (continued) (VCC +5V; SHDN 150; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) PARAMETER All-Hostile Crossstalk Off-Isolation Output Impedance Input Capacitance Input Voltage Noise Density Input Current Noise Density SWITCHING CHARACTERISTICS Channel Switching Time Enable Time from Shutdown Disable Time Shutdown Switching Transient tOFF mVp-p ZOUT SYMBOL 10MHz, 2Vp-p CONDITIONS MAX4310/MAX4313 MAX4311/MAX4314 MAX4312/MAX4315 nV/Hz pA/Hz UNITS MAX4310-MAX4315 SHDN 10MHz, 2Vp-p 10MHz Channel 10kHz 10kHz Typical Operating Characteristics (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4310 SMALL-SIGNAL GAIN FREQUENCY MAX4310-01 MAX4310 GAIN FLATNESS FREQUENCY MAX4310/15 toc02 MAX4310 LARGE-SIGNAL GAIN FREQUENCY GAIN (dB) VOUT 2Vp-p MAX4310/15-03 GAIN (dB) 100k FREQUENCY (Hz) 100M VOUT 100mVp-p GAIN FLATNESS (dB) -0.1 -0.2 -0.3 -0.4 -0.5 VOUT 100mVp-p 100k FREQUENCY (Hz) 100M 100k FREQUENCY (Hz) 100M High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Typical Operating Characteristics (continued) (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4311 SMALL-SIGNAL GAIN FREQUENCY MAX4311 toc04 MAX4311 GAIN FLATNESS FREQUENCY MAX4310/15 toc05 MAX4311 LARGE-SIGNAL GAIN FREQUENCY GAIN (dB) VOUT 2Vp-p MAX4311 toc06 GAIN (dB) VOUT 100mVp-p GAIN FLATNESS (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 VOUT 100mVp-p 1000 1000 1000 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) MAX4312 SMALL-SIGNAL GAIN FREQUENCY MAX4310/15 toc07 MAX4312 GAIN FLATNESS FREQUENCY MAX4310/15 toc08 MAX4312 LARGE-SIGNAL GAIN FREQUENCY GAIN (dB) VOUT 2Vp-p MAX4310/15 toc09 GAIN (dB) VOUT 100mVp-p GAIN FLATNESS (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 VOUT 100mVp-p 1000 1000 1000 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) MAX4313 SMALL-SIGNAL GAIN FREQUENCY MAX4310/15-toc10 MAX4313 GAIN FLATNESS FREQUENCY MAX4310/15-toc11 MAX4313 LARGE-SIGNAL GAIN FREQUENCY GAIN (dB) VOUT 2Vp-p MAX4310/15-toc12 GAIN (dB) 100k FREQUENCY (Hz) 100M VOUT 100mVp-p GAIN FLATNESS (dB) -0.1 -0.2 -0.3 -0.4 -0.5 VOUT 100mVp-p 100k FREQUENCY (Hz) 100M 100k FREQUENCY (Hz) 100M High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers Typical Operating Characteristics (continued) (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4314 SMALL-SIGNAL GAIN FREQUENCY MAX4310/15 toc13 MAX4310-MAX4315 MAX4314 GAIN FLATNESS FREQUENCY MAX4310/15 toc14 MAX4314 LARGE-SIGNAL GAIN FREQUENCY GAIN (dB) VOUT 2Vp-p MAX4310/15 toc15 GAIN (dB) VOUT 100mVp-p GAIN FLATNESS (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 VOUT 100mVp-p 1000 1000 1000 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) MAX4315 SMALL-SIGNAL GAIN FREQUENCY MAX4310/15 toc16 MAX4315 GAIN FLATNESS FREQUENCY GAIN FLATNESS (dB) -0.1 GAIN (dB) -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 VOUT 100mVp-p MAX4310/15 toc17 MAX4315 LARGE-SIGNAL GAIN FREQUENCY VOUT 2Vp-p MAX4310/15 toc18 GAIN (dB) VOUT 100mVp-p 1000 1000 1000 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) MAX4310/MAX4311/MAX4312 HARMONIC DISTORTION FREQUENCY MAX4310/15 toc19 MAX4313/MAX4314/MAX4315 HARMONIC DISTORTION FREQUENCY MAX4310/15-20 POWER-SUPPLY REJECTION FREQUENCY POWER-SUPPLY REJECTION (dB) -100 MAX4310/15-21 HARMONIC DISTORTION (dBc) HARMONIC -100 100k HARMONIC VOUT 2Vp-p HARMONIC DISTORTION (dBc) -100 HARMONIC HARMONIC VOUT 2Vp-p 100M 100k 100M 100k FREQUENCY (Hz) 100M FREQUENCY (Hz) FREQUENCY (Hz) High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Typical Operating Characteristics (continued) (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4310/MAX4311/MAX4312 COMMON-MODE REJECTION FREQUENCY MAX4310/15-toc22 OFF-ISOLATION FREQUENCY MAX4310/15-toc23 MAX4310/MAX4313 All-HOSTILE CROSSTALK FREQUENCY CROSSTALK (dB) -110 -130 -150 MAX4310/15-toc24 COMMON-MODE REJECTION (dB) -100 100k 100M ISOLATION (dB) -100 -110 100k FREQUENCY (Hz) 100M FREQUENCY (MHz) 1000 FREQUENCY (Hz) MAX4312/MAX4315 ALL-HOSTILE CROSSTALK FREQUENCY MAX4310/15 toc25 MAX4311/MAX4314 ALL-HOSTILE CROSSTALK FREQUENCY MAX4310/15 toc26 OUTPUT IMPEDANCE FREQUENCY MAX4310/15-toc27 CROSSTALK (dB) -110 -130 -150 FREQUENCY (MHz) CROSSTALK (dB) -110 -130 -150 OUTPUT IMPEDANCE 0.01 FREQUENCY (MHz) 1000 100k FREQUENCY (Hz) 100M 1000 VOLTAGE-NOISE DENSITY FREQUENCY (INPUT REFERRED) MAX4310/15 toc28a CURRENT-NOISE DENSITY FREQUENCY (INPUT REFERRED) MAX4310/15 toc29 MAX4310 LARGE-SIGNAL PULSE RESPONSE MAX4310/15 toc30 VOLTAGE-NOISE DENSITY (nV/Hz) CURRENT-NOISE DENSITY (pA/Hz) (1V/div) (1V/div) 100k FREQUENCY (Hz) 100k 10ns/div FREQUENCY (Hz) High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers Typical Operating Characteristics (continued) (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4311 LARGE-SIGNAL PULSE RESPONSE MAX4310/15-toc33 MAX4310-MAX4315 MAX4312 LARGE-SIGNAL PULSE RESPONSE MAX43110/15 toc32 MAX4313 LARGE-SIGNAL PULSE RESPONSE (500mV/div) MAX4310/15-toc33 (1V/div) (1V/div) (1V/div) (1V/div) (1V/div) 10ns/div 10ns/div 10ns/div MAX4314 LARGE-SIGNAL PULSE RESPONSE MAX4310/15-toc33 MAX4315 LARGE-SIGNAL PULSE RESPONSE MAX4310/15 toc35 MAX4310 SMALL-SIGNAL PULSE RESPONSE MAX4310/15 toc36 (500mV/div) (500mV/div) (50mV/div) VOUT (1V/div) (IV/div) (50mV/div) 10ns/div 10ns/div 10ns/div MAX4311 SMALL-SIGNAL PULSE RESPONSE MAX4310/15 toc37a MAX4312 SMALL-SIGNAL PULSE RESPONSE MAX4310/15 toc38 MAX4313 SMALL-SIGNAL PULSE RESPONSE (50mV/div) MAX4310/15-toc39 (50mV/div) (50mV/div) (50mV/div) (50mV/div) (50mV/div) 10ns/div 10ns/div 10ns/div High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Typical Operating Characteristics (continued) (VCC +5V; SHDN VCC/2; 1.5V; AVCL +1V/V (MAX4310/MAX4311/MAX4312), AVCL +2V/V (MAX4313/MAX4314/MAX4315); +25°C; unless otherwise noted.) MAX4310 MAX4315 SMALL-SIGNAL PULSE RESPONSE MAX4314 SMALL-SIGNAL PULSE RESPONSE 10pF) SMALL-SIGNAL PULSE RESPONSE (50mV/div) MAX4310/15-toc42 MAX4311 MAX4311 (50mV/div) (50mV/div) (50mV/div) (50mV/div) (50mV/div) 10ns/div 10ns/div 10ns/div MAX4310 SMALL-SIGNAL PULSE RESPONSE 22pF) MAX4310-TOC22 MAX4313 SMALL-SIGNAL PULSE RESPONSE 10pF) MAX4310/15-toc44 MAX4313 SMALL-SIGNAL PULSE RESPONSE 22pF) (50mV/div) MAX431015-toc45 (50mV/div) (50mV/div) (50mV/div) (50mV/div) (50mV/div) 10ns/div 10ns/div 10ns/div CHANNEL-SWITCHING TRANSIENT MAX4310/15 toc46 SHUTDOWN RESPONSE TIME MAX4310-TOC27 (2.5V/div) SHDN (2.0V/div) (10mV/div) (1V/div) 20ns/div 100ns/div High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers Description MAX4310 µMAX MAX4311 QSOP MAX4312 QSOP MAX4313 µMAX MAX4314 QSOP MAX4315 QSOP NAME FUNCTION MAX4310-MAX4315 Channel Address Logic Input Channel Address Logic Input Channel Address Logic Input Shutdown Input Positive Power Supply Amplifier Input Amplifier Input Amplifier Input Amplifier Input Amplifier Input Amplifier Input Amplifier Input Amplifier Input Negative Power Supply. Ground single-supply operation. Amplifier Feedback Input Ground Amplifier Output connected. ground plane optimal performance. SHDN N.C. High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 _Detailed Description MAX4310/MAX4311/MAX4312 combine 2-channel, 4-channel, 8-channel multiplexers, respectively, with adjustable-gain output amplifier optimized closed-loop gains +1V/V (0dB) greater. MAX4313/MAX4314/MAX4315 combine 2-channel, 4channel, 8-channel multiplexers, respectively, with +2V/V (6dB) fixed-gain amplifier, optimized driving back-terminated cables. These devices operate from single supply voltage +10.5V, from dual supplies ±5.25V. outputs placed high-impedance state supply current minimized forcing SHDN low. input multiplexers feature short 40ns channel-switching times small 10mVp-p switching transients. input capacitance remains constant whether channel off, providing predictable input impedance signal source. These devices feature single-supply, rail-to-rail, voltage-feedback output amplifiers that achieve 540V/µs slew rates 345MHz -3dB bandwidths. These devices also feature excellent harmonic distortion differential gain/phase performance. output swings from 30mV above within 730mV supply rail. Local feedback around output stage ensures open-loop output impedance reduce gain sensitivity load variations. This feedback also produces demand-driven bias current output transistors ±95mA drive capability while constraining total supply current only 6.1mA. Feedback Gain Resistor Selection (MAX4310/MAX4311/MAX4312) Select MAX4310/MAX4311/MAX4312 gain-setting feedback (RF) input (RG) resistors your application. Large resistor values increase voltage noise interact with amplifier's input board capacitance. This generate undesirable poles zeros, decrease bandwidth cause oscillations. example, noninverting gain +2V/V configuration using resistors, combined with input capacitance board capacitance, causes pole 159MHz. Since this pole within amplifier bandwidth, jeopardizes stability. Reducing resistors extends pole frequency 1.59GHz, could limit output swing adding parallel with amplifier's load resistor. Table shows suggested values MAX4310/MAX4311/MAX4312 when operating noninverting configuration (shown Figure These values provide optimal response using surfacemount resistors good layout techniques, discussed Layout Power-Supply Bypassing section. Stray capacitance causes feedback resistor decoupling produces peaking frequencyresponse curve. Keep capacitance possible using surface-mount resistors avoiding ground plane beneath beside these resistors pin. Some capacitance unavoidable; necessary, effects neutralized adjusting resistors maintain consistency over wide range production lots. _Applications Information Rail-to-Rail Outputs, Ground-Sensing Input input common-mode range extends from negative supply rail 2.7V with excellent commonmode rejection. Beyond this range, multiplexer switching times increase amplifier output nonlinear function input, does undergo phase reversal latchup. output swings within 250mV 40mV with load. With load ground, CABLE CABLE CABLE Table Bandwidth Gain with Suggested Gain-Setting Resistors (MAX4310/MAX4311/MAX4312) GAIN (V/V) GAIN (dB) -3dB (MHz) 0.1dB (MHz) MAX4310 Figure MAX4310 Noninverting Gain Configuration High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 INPUT CURRENT (µA) LOGIC-LOW THRESHOLD ABOVE VEE) INPUT CURRENT (µA) -100 -120 -140 -160 LOGIC-LOW THRESHOLD ABOVE VEE) Figure Logic-Low Input Current (SHDN, Figure Logic-Low Input Current with Series Resistor LOGIC INPUT normal operation, drive SHDN high. shutdown function used, connect SHDN VCC. Layout Power-Supply Bypassing INSHDN, MAX4310-MAX4315 have very high bandwidths consequently require careful board layout, including possible constant-impedance microstrip stripline techniques. realize full performance these high-speed amplifiers, careful attention power-supply bypassing board layout. board should have least layers: signal power layer side, large, low-impedance ground plane other side. ground plane should free voids possible, with exception: feedback (FB) should have capacitance ground possible. Therefore, layers that incorporate signal power trace should have ground plane. Whether constant-impedance board used, best observe following guidelines when designing board: wire-wrapped boards (they inductive) breadboards (they capacitive). sockets; they increase parasitic capacitance inductance. Keep signal lines short straight possible. make turns; round corners. Observe high-frequency bypassing techniques maintain amplifier's accuracy stability. surface-mount components. They generally have shorter bodies lower parasitic reactance, yielding better high-frequency performance than through-hole components. MAX431_ Figure Circuit Reduce Logic-Low Input Current Low-Power Shutdown Mode parts feature low-power shutdown mode that activated driving SHDN input low. Placing amplifier shutdown mode reduces quiescent supply current 560µA places output into highimpedance state, typically 35k. tying outputs several devices together disabling paralleled amplifiers' outputs, multiple devices paralleled construct larger switch matrices. MAX4310/MAX4311/MAX4312 application circuits operating with closed-loop gain +2V/V greater, consider external-feedback network impedance devices used application when calculating total load output amplifier active device. MAX4313/MAX4314/MAX4315 have fixed gain +2V/V that internally with thinfilm resistors. impedance internal feedback resistors must taken into account when operating multiple MAX4313/MAX4314/MAX4315s large multiplexer applications. High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 CABLE CABLE CABLE ISOLATION RESISTANCE RISO MAX4313 CAPACITIVE LOAD (pF) Figure Video Line Driver GAIN (dB) VOUT 100mVp-p 100k FREQUENCY (Hz) 100M LOAD 10pF LOAD 15pF LOAD Figure Optimal Isolation Resistance Capacitive Load GAIN (dB) VOUT 100mVp-p 100k FREQUENCY (Hz) 100M 90pF LOAD 120pF LOAD 47pF LOAD MAX4310-FIG06 Figure Small-Signal Gain Frequency with Capacitive Load Isolation Resistor Figure Small-Signal Gain Frequency with Load Capacitance Isolation Resistor CABLE CABLE RISO MAX4313 Figure Using Isolation Resistor (RISO) High Capacitive Loads bypass capacitors should include 100nF, ceramic surface-mount capacitor between each supply ground plane, located close package possible. Optionally, place 10µF tantalum capacitor power-supply pins' point entry board ensure integrity incoming supplies. power-supply trace should lead directly from tantalum capacitor pins. minimize parasitic inductance, keep traces short surface-mount components. input termination resistors output back-termination resistors used, they should surface-mount types, should placed close pins possible. Video Line Driver MAX4310-MAX4315 well-suited drive coaxial transmission lines when cable terminated both ends, shown Figure Cable frequency response cause variations signal's flatness. MAX4310-FIG09 MAX4310-FIG08 High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Table Input Control Logic MAX4310/MAX4313 SHDN SHDN SHDN CHANNEL SELECTED None, High-Z Output CHANNEL SELECTED None, High-Z Output CHANNEL SELECTED None, High-Z Output MAX4311/MAX4314 MAX4312/MAX4315 Figure High-Speed Board Layout-Component Side forms resonant circuit with capacitive load, which causes peaking frequency response degrades amplifier's phase margin. Although MAX4310-MAX4315 optimized performance designed drive highly capacitive loads, they capable driving 20pF without oscillations. However, some peaking occur frequency domain (Figure drive larger capacitive loads reduce ringing, isolation resistor between amplifier's output load (Figure value RISO depends circuit's gain capacitive load (Figure Figure shows MAX4310-MAX4315 frequency response with isolation resistor capacitive load. With higher capacitive values, bandwidth dominated network formed RISO bandwidth amplifier itself much higher. Also note that isolation resistor forms divider that decreases voltage delivered load. Figure High-Speed Board Layout-Solder Side Driving Capacitive Loads correctly terminated transmission line purely resistive presents capacitive load amplifier. Reactive loads decrease phase margin produce excessive ringing oscillation (see Typical Operating Characteristics). Another concern when driving capacitive loads originates from amplifier's output impedance, which appears inductive high frequencies. This inductance High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Digital Interface multiplexer architecture MAX4310-MAX4315 ensures that input channels ever connected together. Channel selection accomplished applying binary code channel address inputs. address decoder selects input channels, shown Table digital inputs CMOS compatible. connectors were used best high-frequency performance. Inputs outputs match line, this does affect performance since distances extremely short. However, applications that require lead lengths greater than one-quarter wavelength highest frequency interest, constant-impedance traces. Fully assembled evaluation boards available MAX4313 package. High-Speed Evaluation Board Figures show evaluation board present suggested layout circuits. This board developed using techniques described Layout Power-Supply Bypassing section this data sheet. smallest available surface-mount resistors were used feedback back-termination minimize their distance from part, reducing capacitance associated with longer lead lengths. Chip Information TRANSISTOR COUNT: Typical Operating Circuit +10.5V 0.1µF MAX4313 SHDN CABLE VIDEO OUTPUT High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Configurations VIEW MAX4310 SHDN SO/µMAX MAX4311 N.C. N.C. SHDN N.C. N.C. N.C. N.C. MAX4311 SHDN N.C. N.C. MAX4312 SHDN QSOP SO/QSOP MAX4314 MAX4313 SHDN MAX4314 MAX4315 SHDN SHDN SHDN N.C. N.C. N.C. N.C. N.C. N.C. N.C. SO/µMAX QSOP SO/QSOP N.C. INTERNALLY CONNECTED. GROUND PLANE OPTIMAL PERFORMANCE. High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Package Information 8LUMAXD.EPS High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Package Information (continued) QSOP.EPS High-Speed, Low-Power, Single-Supply, Multichannel, Video Multiplexer-Amplifiers MAX4310-MAX4315 Package Information (continued) SOICN.EPS Other recent searchesUMT2N - UMT2N UMT2N Datasheet IMT2A - IMT2A IMT2A Datasheet SNL241 - SNL241 SNL241 Datasheet SCAS183 - SCAS183 SCAS183 Datasheet MT8977 - MT8977 MT8977 Datasheet HD74ALVC2G06 - HD74ALVC2G06 HD74ALVC2G06 Datasheet HC325WF484 - HC325WF484 HC325WF484 Datasheet CSA----MG05051 - CSA----MG05051 CSA----MG05051 Datasheet CSAC----MGC05051 - CSAC----MGC05051 CSAC----MGC05051 Datasheet CSAC----MGCM05051 - CSAC----MGCM05051 CSAC----MGCM05051 Datasheet
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