Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multi

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Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multi

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19-1385; 10/98
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
MAX4598 low-voltage, CMOS analog configurable single-ended 8-to-1/differential 4-to-1 multiplexer. addition input channels, both switched output channels, enabling supply voltages monitored. MAX4598 operates from single +2.7V +12V supply from dual supplies. device on-resistance max) TTL-compatible logic inputs from either single supply. Each switch handle Rail-to-Rail analog signals. MAX4598 modes operation: standard multiplexer "latchable" multiplexer where address lines strobed. off-leakage current only 0.1nA +25°C +85°C. protection Method 3015.7. MAX4598 available small 20-pin SSOP, packages.
Features
Switched Output Channels (max) On-Resistance Single-Ended Differential Operation (typ) Charge Injection Latched Unlatched Operation TTL-Compatible Logic Inputs Supply Handles Rail-to-Rail Analog Signals
MAX4598
Ordering Information
PART MAX4598CAP TEMP. RANGE +70°C PIN-PACKAGE SSOP Wide Plastic Dice* SSOP Wide Plastic
Applications
Systems Battery-Operated Equipment Test Equipment Avionics Audio-Signal Routing Networking
MAX4598CWP +70°C MAX4598CCP +70°C MAX4598C/D +70°C MAX4598EAP -40°C +85°C MAX4598EWP -40°C +85°C MAX4598EPP -40°C +85°C *Contact factory dice specifications.
Configuration/Functional Diagram
COMB LOGIC DECODER
LATCH
MAX4598
COMA
NLATCH
Rail-to-Rail registered trademark Nippon Motorola, Ltd.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 1-800-835-8769.
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
ABSOLUTE MAXIMUM RATINGS
.-0.3V +13V .-13V +0.3V V-.-0.3V +13V LATCH, NLATCH, NO_, COM_ (Note 1).(V- 0.3V) 0.3V) Continuous Current (any terminal).±20mA Peak Current, NO_, COM_ (pulsed 1ms, duty cycle max) .±40mA Continuous Power Dissipation +70°C) SSOP (derate 8mW/°C above +70°C) .640mW Wide (derate 10mW/°C above +70°C).800mW Plastic (derate 10.53mW/°C above +70°C) .889mW Operating Temperature Ranges MAX4598C_P .0°C +70°C MAX4598E_P .-40°C +85°C Storage Temperature Range .-65°C +160°C Lead Temperature (soldering, 10sec) .+300°C
Note Signals NO_, COM_, LATCH, NLATCH, exceeding clamped internal diodes. Limit forward current maximum current ratings
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-Dual Supplies
±10%, ±10%, 2.4V, 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note PARAMETER SWITCH Analog Signal Range VCOM_, VNO_ (Note ICOM_ 1mA, VNO_ ±3.0V, 4.5V, -4.5V ICOM_ 1mA, VNO_ ±3.0V, 4.5V, -4.5V ICOM_ 1mA; VNO_ -3V, 4.5V, -4.5V VNO_ ±4.5V, VCOM_ ±4.5V, 5.5V, -5.5V +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX -0.1 -0.2 -0.2 VLATCH VNLATCH VCAL VLATCH VNLATCH VCAL -0.1 -0.1 0.01 0.01 0.01 0.01 0.01 SYMBOL CONDITIONS UNIT
On-Resistance
On-Resistance Matching Between Channels (Note On-Resistance Flatness (Note Off-Leakage Current (Note Off-Leakage Current (Note On-Leakage Current (Note LOGIC INPUTS Input High Voltage Input Voltage Input Current with Input Voltage High Input Current with Input Voltage
RFLAT
INO(OFF)
VCOM_ ±4.5V, ICOM(OFF) VNO_ ±4.5V, 5.5V, -5.5V ICOM(ON) VCOM_ ±4.5V, VNO_ ±4.5V, 5.5V, -5.5V
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
ELECTRICAL CHARACTERISTICS-Dual Supplies (continued)
±10%, ±10%, 2.4V, 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note PARAMETER SUPPLY Power-Supply Range Positive Supply Current VLATCH VNLATCH 5.5V, -5.5V VLATCH VNLATCH 5.5V, -5.5V VLATCH VNLATCH 5.5V, -5.5V +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C +25°C TMIN TMAX +25°C TMIN TMAX +25°C +25°C ±2.7 0.001 0.001 0.001 SYMBOL CONDITIONS UNIT
MAX4598
Negative Supply Current
Supply Current DYNAMIC Transition Time Break-Before-Make Interval (Note Enable Turn-On Time Enable Turn-Off Time Charge Injection (Note Off-Isolation (Note Crosstalk Between Channels (Note Logic Input Capacitance Off-Capacitance
IGND
tTRANS tOPEN tOFF VCTE VISO
Figure Figure Figure Figure 1nF, VNO_ Figure 1MHz, Figure
COFF
2.4V, 1MHz, VGEN 1Vp-p, +25°C Figure 1MHz 1MHz, VCOM_ Figure +25°C +25°C
Off-Capacitance
1MHz, CCOM(OFF) VCOM_ Figure CCOM(ON)
+25°C
On-Capacitance LATCH TIMING (Note Setup Time Hold Time
1MHz, 2.4V, +25°C VCOM_ +25°C TMIN TMAX +25°C TMIN TMAX
Figure Figure
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
ELECTRICAL CHARACTERISTICS-Single Supply
±10%, 2.4V, 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note PARAMETER SWITCH Analog Signal Range VNO_, VCOM_ (Note ICOM_ 1mA, VNO_ 3.0V, 4.5V ICOM_ 1mA, VNO_ 3.0V, 4.5V ICOM_ 1mA; VNO_ 4.5V VNO_ 4.5V, VCOM_ 4.5V; 5.5V +25°C TMIN TMAX +25°C TMIN TMAX +25°C +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX -0.1 -0.2 -0.2 VLATCH VNLATCH VLATCH VNLATCH -0.1 -0.1 0.01 0.01 SYMBOL CONDITIONS CONDITIONS UNIT
On-Resistance
On-Resistance Matching Between Channels (Notes
On-Resistance Flatness
RFLAT
Off-Leakage Current (Notes Off-Leakage Current (Notes On-Leakage Current (Notes LOGIC INPUTS (Note Input High Voltage Input Voltage Input Current with Input Voltage High Input Current with Input Voltage SUPPLY Power-Supply Range Positive Supply Current (Note DYNAMIC (Note Transition Time Break-Before-Make Interval Enable Turn-On Time Enable Turn-Off Time
INO(OFF)
VCOM_ 4.5V, ICOM(OFF) VNO_ 1V,4.5V; 5.5V ICOM(ON) VCOM_ 4.5V, VNO_ 4.5V, 5.5V
VLATCH VNLATCH 5.5V +25°C TMIN TMAX +25°C TMIN TMAX +25°C +25°C TMIN TMAX +25°C TMIN TMAX
12.0
tTRANS tOPEN tOFF
VNO_ Figure Figure Figure Figure
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
ELECTRICAL CHARACTERISTICS-Single Supply (continued)
±10%, 2.4V, 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note PARAMETER Charge Injection LATCH TIMING (Note Setup Time Hold Time Figure Figure +25°C TMIN TMAX +25°C TMIN TMAX SYMBOL VCTE CONDITIONS CONDITIONS CONDITIONS 1nF, VNO_ Figure +25°C UNIT
MAX4598
ELECTRICAL CHARACTERISTICS-Single Supply
+2.7V +3.6V, 2.4V, 0.6V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER SWITCH Analog Signal Range On-Resistance LOGIC INPUTS (Note Input High Voltage Input Voltage DYNAMIC (Note Transition Time Enable Turn-On Time Enable Turn-Off Time LATCH TIMING (Note Setup Time Hold Time Figure Figure +25°C +25°C tTRANS tOFF VNO1 1.5V, VNO8 Figure VNO1 1.5V, Figure VNO1 1.5V, Figure +25°C +25°C +25°C (Note ICOM_ 0.2mA, VNO_ 1.5V, 2.7V +25°C TMIN TMAX SYMBOL CONDITIONS CONDITIONS CONDITIONS UNIT
Note algebraic convention, where most negative value minimum most positive value maximum, used this data sheet. Note Guaranteed design. Note RON(MAX) RON(MIN). Note Flatness defined difference between maximum minimum value on-resistance measured over specified analog signal range. Note Leakage parameters 100% tested maximum-rated temperature guaranteed correlation +25°C. Note Off-Isolation 20log10(VCOM VNO), VCOM output, input switch. Note Between switches. Note Leakage testing single supply guaranteed testing with dual supplies.
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
Typical Operating Characteristics
+25°C, unless otherwise noted.)
ON-RESISTANCE VCOM TEMPERATURE (DUAL SUPPLIES)
MAX4598-01
ON-RESISTANCE VCOM TEMPERATURE (SINGLE SUPPLY)
MAX4598-02
ON-RESISTANCE VCOM (SINGLE SUPPLY)
+2.7V
MAX4598-03
+85°C +70°C
+25°C -40°C +70°C +85°C
+25°C VCOM -40°C
VCOM
VCOM
ON-RESISTANCE VCOM (DUAL SUPPLIES)
MAX4598-04
LEAKAGE CURRENT TEMPERATURE
MAX4598-05
SUPPLY CURRENT TEMPERATURE
100n SUPPLY CURRENT 100p 100f
MAX4598-06
VCOM +2.7V -2.7V
100n LEAKAGE CURRENT 100p (OFF) 100f (OFF) (ON)
1000n
TEMPERATURE (°C)
TEMPERATURE (°C)
TURN-ON/TURN-OFF TIMES TEMPERATURE
MAX4598-07
TURN-ON/TURN-OFF TIMES SUPPLY VOLTAGE (DUAL SUPPLIES)
MAX4598-08
tOFF TEMPERATURE (°C)
tON, tOFF (ns)
tON, tOFF (ns)
tOFF
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
Typical Operating Characteristics (continued)
+25°C, unless otherwise noted.)
MAX4598
FREQUENCY RESPONSE
LOSS (dB) FREQUENCY (MHz) 1000 ON-PHASE OFF-ISOLATION INSERTION LOSS
MAX4598-09
CHARGE INJECTION VCOM
PHASE (°C) -100 -140 -180 (pC) VCOM
MAX4598-10
Description
NAME COMB COMA NLATCH LATCH FUNCTION Multiplexer Output Address Address Channel Input Channel Input Channel Input Channel Input Negative Supply Voltage Positive Supply Voltage Multiplexer Output Data-Strobe Mode Select Latch Input Multiplexer Enable Channel Input Channel Input Channel Input Channel Input Address Address Ground
_Detailed Description
MAX4598 configured single 8-channel dual 4-channel multiplexer. single 8-to-1 multiplexer configuration, COMA connects eight inputs (NO1 NO8), GND, address inputs (see Truth Table). dual 4-to-1 multiplexer configuration, COMA connects four inputs (NO1, NO3, NO5, NO7), GND, COMB connects four inputs (NO2, NO4, NO6, NO8) address inputs (see Truth Table). MAX4598 functions standard multiplexer when NLATCH high. When NLATCH low, condition activated rising edge LATCH. Otherwise, outputs remain previously condition.
_Applications Information
MAX4598 construction typical most CMOS analog switches. three supply pins: GND. positive negative power supplies used drive internal CMOS switches limits analog voltage switch. Reverse ESD-protection diodes internally connected between each analog signal voltage exceeds 0.3V, diodes starts conduct. During normal operation these reverse-biased diodes leak, forming only current drawn from
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
Truth Table
LATCH NLATCH COMA High-Z State latched rising edge LATCH High-Z COMB High-Z State latched rising edge LATCH High-Z
Don't care
Virtually analog leakage current through diodes. Although diodes given signal identical, therefore fairly well balanced, they reverse-biased differently. Each biased either analog signal. This means their leakage varies signal varies. difference diodes' leakage from signal path pins constitutes analog signal-path leakage current. analog leakage current flows supply terminals, other switch terminal. This explains both sides given switch show leakage currents either same opposite polarity. There connection between analog signal paths GND. analog signal paths consist N-channel P-channel MOSFET, with their sources drains paralleled their gates driven phase with logic-level translators. power internal logic logic-level translators, input logic thresholds. logic-level translators convert logic levels switched signals drive analog switch gates. This drive signal only connection between
logic supplies analog supplies. pins have protection Increasing effect logic-level thresholds, does increase drive P-channel switches, reducing their on-resistance. also sets negative limit analog signal voltage. logic-level thresholds CMOS- TTL-compatible when +5V. raised, threshold increases slightly; when reaches +12V, level threshold about 3.2V, which above output high-level minimum 2.4V still compatible with CMOS outputs.
Bipolar-Supply Operation
MAX4598 operates with bipolar supplies between ±2.7V ±6V. supplies need symmetrical, their cannot exceed absolute maximum rating 13V. connect MAX4598 connect logic-level input pins logic-level signals. logic-level outputs exceed absolute maximum ratings, causing damage part and/or external circuits.
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
Caution: absolute maximum differential voltage 13V. Typical Volt" Volt" supplies with ±10% tolerances high 13.2V from This voltage damage MAX4598. Even tolerance supplies have overshoot noise spikes that exceed 13V. off-isolation, distortion degraded (see Typical Operating Characteristics). Single-supply operation also limits signal levels interferes with grounded signals. When signals limited -0.3V. Voltages below -0.3V clipped internal ESD-protection diodes, parts damaged excessive current flows.
MAX4598
Single-Supply Operation
MAX4598 operates from single supply between +2.7V +12V when connected GND. bipolar precautions must observed. However, these parts optimized operation, most characteristics degraded significantly when departing from ±5V. overall supply voltage lowered, switching speed, on-resistance,
Power
When power MAX4598 (i.e., Absolute Maximum Ratings still apply: neither logiclevel inputs signals COM_ exceed ±0.3V. Voltages beyond ±0.3V cause internal ESDprotection diodes conduct, parts damaged excessive current flows.
Test Circuits/Timing Diagrams
NLATCH LATCH tTRANS tTRANS NO2-NO7 20ns 20ns
LOGIC INPUT
VNO1
MAX4598
COMA V300
VOUT 35pF
SWITCH OUTPUT VOUT
VNO8
Figure Transition Time
NLATCH LOGIC INPUT VOUT COMA V300 VOUT 35pF SWITCH OUTPUT VCOM
LATCH NO1-NO8
20ns 20ns
MAX4598
tOPEN
Figure Break-Before-Make Interval
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
Test Circuits/Timing Diagrams (continued)
NLATCH NO2-NO8 VOUT COMA VVOUT 35pF 20ns 20ns
LATCH
MAX4598
tOFF
Figure Enable Switching Time
CHANNEL SELECT V-5V NLATCH LOGIC INPUT VCOM VOUT VCOM VOUT MEASURED VOLTAGE CHARGE TRANSFER ERROR WHEN CHANNEL TURNS OFF. (VOUT) (CL)
MAX4598
COMA
Figure Charge Injection
10nF NETWORK ANALYZER OFF-ISOLATION 20log CROSSTALK 20log MEAS.
NLATCH
VNO_
MAX4598
COM_ VGND 10nF LATCH
VOUT
NOTES: MEASUREMENTS STANDARDIZED AGAINST SHORT SOCKET TERMINALS. OFF-ISOLATION MEASURED BETWEEN "OFF" TERMINAL EACH SWITCH. LOSS MEASURED BETWEEN "ON" TERMINAL EACH SWITCH.
Figure Off-Isolation/Crosstalk
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer
Test Circuits/Timing Diagrams (continued)
_Chip Topography
COMB
MAX4598
NLATCH CHANNEL SELECT
1MHz CAPACITANCE ANALYZER
MAX4598
COM_
0.104" (2.64mm)
LATCH,
Figure NO_/COM_ Capacitance
NO1, NO3-NO8 MAX4598 NLATCH V-5V LATCH
COMA
LATCH
NLATCH 0.092" (2.34mm)
TRANSISTOR COUNT: SUBSTRATE CONNECTED
LATCH ADDRESS
NOTE: TIMING MEASUREMENT REFERENCE LEVEL
Figure Setup Time, Hold Time
Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multiplexer MAX4598
NOTES
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 1998 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

Low-Voltage, Combination Single-Ended 8-to-1/Differential 4-to-1 Multi

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