TC1026 TC1026CEPA TC1026CEOA TC1043EV TC1026CEUA DS21337A TC1026-2 11F-3 - Datasheet Archive

 

KIT AVAILABLE TC1026 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference FEATURES GENERAL

 

EVALUATION KIT AVAILABLE TC1026 TC1026 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference FEATURES GENERAL DESCRIPTION s The TC1026 TC1026 is a mixed-function device combining a general-purpose op amp, comparator, and voltage reference in a single 8-Pin package. This increased integration allows the user to replace two or three packages, which saves space, lowers supply current, and increases system performance. Both the op amp and comparator have rail-to-rail inputs and outputs which allows operation from low supply voltages with large input and output swings. The TC1026 TC1026 is optimized for low voltage (VDD= 1.8V), low supply current (12µA typ) operation. Packaged in a space-saving 8-Pin MSOP, the TC1026 TC1026 consumes half the board area of an 8-Pin SOIC and is ideal for applications requiring high integration, small size, and low power. It also is available in 8-Pin SOIC and 8-Pin PDIP packages. s s s s s s Combines Low-Power Op Amp, Comparator, and Voltage Reference in a Single Package Optimized for Single-Supply Operation Small Package . 8-Pin MSOP (Consumes Only Half the Area of an 8-Pin SOIC), 8-Pin SOIC, and 8-Pin PDIP Ultra Low Input Bias Current . Less than 100 pA Low Quiescent Current . 12µA, (Typ.) Rail-to-Rail Inputs and Outputs Operates Down to VDD = 1.8V, Min APPLICATIONS s s s Power Management Circuits Battery Operated Equipment Consumer Products FUNCTIONAL BLOCK DIAGRAM ORDERING INFORMATION AMPIN­ TC1026 TC1026 1 7 2 VSS CMP + ­ + AMP AMPIN+ 8 VDD CMPOUT Package Temp. Range TC1026CEPA TC1026CEPA 8-Pin PDIP (Narrow) ­ 40°C to +85°C 8-Pin MSOP ­ 40°C to +85°C TC1026CEOA TC1026CEOA 8-Pin SOIC (Narrow) ­ 40°C to +85°C TC1043EV TC1043EV Evaluation Kit for Linear Building Block Family ­ 3 4 Part No. TC1026CEUA TC1026CEUA AMPOUT 6 5 Voltage Reference REF (CMPIN­) CMPIN+ PIN CONFIGURATIONS (MSOP, PDIP, and SOIC) AMPOUT 1 8 VDD AMPIN­ 2 7 CMPOUT AMPIN+ 3 6 REF (CMPIN­) VSS 4 5 CMPIN+ 2001 Microchip Technology Inc. TC1026 TC1026_EPA TC1026 TC1026_EUA TC1026 TC1026_EOA DS21337A DS21337A TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 ABSOLUTE MAXIMUM RATINGS* * Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. Supply Voltage .6.0V Package Power Dissipation: 8-Pin PDIP (Narrow) . 730 mW 8-Pin SOIC .470 mW 8-Pin MSOP (Narrow) . 320 mW Voltage on Any Pin: (With Respect to Supplies) . (VSS ­ 0.3V) to (VDD +0.3V) Operating Temperature Range: . ­ 40°C to + 85°C Storage Temperature Range . ­ 55°C to +150°C Lead Temperature (Soldering, 10 sec) . +260°C ELECTRICAL CHARACTERISTICS: TA = ­40° to +85°C,and VDD = 1.8V to 5.5V, unless otherwise specified. Typical values apply at 25°C and VDD=3.0V. Symbol Parameter Test Conditions Min Typ Max Unit VDD IQ Supply Voltage Supply Current All outputs unloaded 1.8 - - 12 5.5 18 V µA 100 - ±100 ±0.3 50 4 - VDD +0.2 ±500 ±1.5 100 - V/mV V µV mV pA µV/°C 90 - KHz 35 - mV/µsec V - - VDD­ 0.05 - - - dB 3 - - mA - - mA Op Amp AVOL VICMR VOS IB VOS (DRIFT) GBWP SR VOUT CMRR PSRR Large Signal Voltage Gain RL = 10 K, VDD = 5V - Common Mode Input Voltage Range VSS ­ 0.2 Input Offset Voltage VDD = 3V, VCM = 1.5V, TA = 25°C, TA = ­40°C to 85°C Input Bias Current TA = 25°C, VCM = VDD to VSS ­100 Average Input Offset Voltage Drift VDD = 3V, VCM = 1.5V - Gain-Bandwidth Product VDD = 1.8V to 5.5V; VO = VDD to VSS - Slew Rate CL = 100pF RL = 1M to GND Gain = 1 VIN = VSS to VDD - Output Signal Swing RL = 10 K VSS+ 0.05 Common Mode Rejection Ratio T A = 25°C, VDD = 5V 66 VCM = VDD to VSS Power Supply Rejection Ratio T A = 25°C, VCM = VSS 80 VDD = 1.8 to 5V dB ISRC Output Source Current VIN+ = VDD, VIN­ = VSS Output Shorted to VSS VDD = 1.8V, Gain = 1 ISINK Output Sink Current VIN+ = VSS, VIN­ = VDD, Output Shorted to VDD VDD = 1.8V, Gain = 1 4 Input Noise Voltage 0.1 Hz to 10 Hz - 10 - µVpp Input Noise Density 1KHz - 125 - nV/Hz en TC1026-2 TC1026-2 1/04/01 2 2001 Microchip Technology Inc. DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 ELECTRICAL CHARACTERISTICS: (Cont.) TA = ­40° to +85°C,and VDD = 1.8V to 5.5V, unless otherwise specified. Typical values apply at 25°C and VDD = 3.0V. Symbol Parameter Test Conditions Min VIR VOS Input Voltage Range Input Offset Voltage IB VOH VOL PSRR Input Bias Current Output High Voltage Output Low Voltage Power Supply Rejection Ratio ISRC Output Source Current ISINK Output Sink Current tPD1 tPD2 Response Time Response Time VSS ­ 0.2 VDD = 3V, TA = 25°C ­5 TA = ­40°C to 85°C ­5 TA = 25°C, IN+ = VDD to VSS - RL = 10K to VSS VDD ­ 0.3 RL = 10K to VDD - 60 TA = 25°C VDD = 1.8V to 5V IN+ = VDD 1 Output Shorted to VSS VDD = 1.8V IN+ = VSS 2 Output Shorted to VDD VDD = 1.8V 100mV Overdrive,CL = 100pF - 10mV Overdrive,CL = 100pF - Typ Max Unit - - V mV - - - - VDD +0.2 +5 +5 ±100 - 0.3 - - - mA - - mA 4 6 - - µsec µsec 1.200 - - - 20 1.0 1.224 - - 100 - - V µA µA pF µVRMS µV/Hz Comparator pA V V dB Voltage Reference VREF IREF(SOURCE) IREF(SINK) CL(REF) NVREF Reference Voltage Source Current Sink Current Load Capacitance Voltage Noise Noise Density 2001 Microchip Technology Inc. DS21337A DS21337A 100 Hz to 100 KHz 1 KHz 3 1.176 50 50 - - - TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 DETAILED DESCRIPTION 1. Choose the feedback resistor RC. Since the input bias current of the comparator is at most 100 pA, the current through RC can be set to 100 nA (i.e. 1000 times the input bias current) and retain excellent accuracy. The current through RC at the comparator's trip point is VR / RC where VR is a stable reference voltage. The TC1026 TC1026 is one of a series of very low-power, linear building block products targeted at low-voltage, singlesupply applications. The TC1026 TC1026 minimum operating voltage is 1.8V, and typical supply current is only 12µA. It combines a comparator, an op amp, and a voltage reference in a single package. 2. Determine the hysteresis voltage (VHY) between the upper and lower thresholds. Comparator The TC1026 TC1026 contains one comparator. The comparator's input range extends beyond both supply voltages by 200mV and the outputs will swing to within several millivolts of the supplies depending on the load current being driven. The inverting input is internally connected to the output of the reference. The comparator exhibits propagation delay and supply current which are largely independent of supply voltage. The low input bias current and offset voltage make it suitable for high impedance precision applications. 3. Calculate RA as follows. RA = RC (V ) V HY DD Equation 1. 4. Choose the rising threshold voltage for VSRC (VTHR). 5. Calculate RB as follows: 1 RB = VTHR 1 ­ 1 ­ (VR * RA) RA RC [( Operational Amplifier The TC1026 TC1026 contains one rail-to-rail op amp. The amplifier's input range extends beyond both supplies by 200mV and the outputs will swing to within several millivolts of the supplies depending on the load current being driven. The amplifier design is such that large signal gain, slew rate and bandwidth are largely independent of supply voltage. The low input bias current and offset voltage of the TC1026 TC1026 make it suitable for precision applications. ) ] Equation 2. 6. Verify the threshold voltages with these formulas: VSRC rising: VTHR = (VR) (RA) 1 1 1 [(R ) + (R ) + (R ) ] A B C Equation 3. Voltage Reference VSRC falling: A 2.0 percent tolerance, internally biased, 1.20V bandgap voltage reference is included in the TC1026 TC1026. It has a pushpull output capable of sourcing and sinking at least 50µA. VTHF = VTHR ­ [ (RR * V ) ] A DD C Equation 4. TYPICAL APPLICATIONS The TC1026 TC1026 lends itself to a wide variety of applications, particularly in battery-powered systems. It typically finds application in power management, processor supervisory, and interface circuitry. External Hysteresis (Comparator) Hysteresis can be set externally with three resistors using positive feedback techniques (see Figure 1). The design procedure for setting external comparator hysteresis is as follows: TC1026-2 TC1026-2 1/04/01 4 2001 Microchip Technology Inc. DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 Precision Battery Monitor EVALUATION KIT Figure 2 is a precision battery low/battery dead monitoring circuit. Typically, the battery low output warns the user that a battery dead condition is imminent. Battery dead typically initiates a forced shutdown to prevent operation at low internal supply voltages (which can cause unstable system operation). The circuit of Figure 2 uses two TC1026 TC1026 devices and only six external resistors. AMP 1 is a simple buffer while CMPTR1 and CMPTR2 provide precision voltage detection using VR as a reference. Resistors R2 and R4 set the detection threshold for BATT LOW while resistors R1 and R3 set the detection threshold for BATT FAIL. The component values shown assert BATT LOW at 2.2V (typical) and BATT FAIL at 2.0V (typical). Total current consumed by this circuit is typically 28 µA at 3V. Resistors R5 and R6 provide hysteresis for comparators CMPTR1 and CMPTR2, respectively. The TC1043EV TC1043EV consists of a four-inch by six-inch prewired application circuit board. Pre-configured circuits include a pulse width modulator, wake-up timer, function generator, and others. On-board current meter terminals, voltage regulator, and a user-prototyping area speed circuit development. Please contact your local Microchip Technologies representative for more information. RC TC1026 TC1026 VDD RA + VSRC ­ RB Voice Band Receive Filter VOUT TC1026 TC1026 Comparator VR The majority of spectral energy for human voices is in a 2.7 KHz frequency band from 300 Hz to 3 KHz. To properly recover a voice signal in applications such as radios, cellular phones, and voice pagers, a low-power bandpass filter that is matched to the human voice spectrum can be implemented using TelCom's CMOS op amps. Figure 3 shows a unity-gain multi-pole Butterworth filter with ripple less than 0.15 dB in the human voice band. The lower 3 dB cut-off frequency is 70 Hz (single-order response), while the upper cut-off frequency is 3.5 KHz (fourth-order response). Figure 1. Comparator External Hysteresis Supervisory Audio Tone (SAT) Filter for Cellular Supervisory Audio Tones (SAT) provide a reliable transmission path between cellular subscriber units and base stations. The SAT tone functions much like the current/ voltage used in land line telephone systems to indicate that a phone is off the hook. The SAT tone may be one of three frequencies: 5970, 6000, or 6030 Hz. A loss of SAT implies that channel conditions are impaired, and if SAT is interrupted for more than 5 seconds, a cellular call is terminated. Figure 4 shows a high Q (30) first order SAT detection bandpass filter using TelCom's CMOS op amp architecture. This circuit nulls all frequencies except the three SAT tones of interest. 2001 Microchip Technology Inc. DS21337A DS21337A 5 TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 R4, 470k, 1% TO SYSTEM DC/DC CONVERTER R5, 7.5M VDD TC1026 TC1026 Op Amp + VDD R2, 330k, 1% TC1026 TC1026 Comparator + AMP1 ­ CMPTR1 BATTLOW ­ 3V ALKALINE VDD R1, 270k, 1% TC1026 TC1026 VR TC1026 TC1026 Comparator ­ CMPTR2 BATTFAIL + R6, 7.5M R3, 470k, 1% Figure 2. Precision Battery Monitor Gain = 0 dB TC1026 TC1026 Fch = 3.5 KHz ­24 dB/Octave 0.1 µF 22.6K VDD /2 VDD VOUT TC1026 TC1026 Op Amp + ­ Fcl = 70 Hz +6 dB/Octave 22.6K Passband Ripple < 0.15 dB 750 pF 6800 pF VIN VDD 21.0K 21.0K 21.0K + 2400 pF TC1026-2 TC1026-2 1/04/01 470 pF TC1026 TC1026 Op Amp ­ Figure 3. Multi-Pole Butterworth Voice Band Receive Filter 6 2001 Microchip Technology Inc. DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 Gain = 0 dB Q = 30 .036 µF Q = FC BW (3 dB) 48.7K FC = 6 KHz VDD VIN VOUT .036 µF 24.3K ­ + 11.2 TC1026 TC1026 Amp. VDD/2 TC1026 TC1026 VDD/2 Figure 4. Second Order SAT Bandpass Filter 2001 Microchip Technology Inc. DS21337A DS21337A 7 TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 TYPICAL CHARACTERISTICS Comparator Propagation Delay vs. Supply Voltage 7 6 Overdrive = 10mV 5 4 Overdrive 50mV 3 2 6 Overdrive = 10mV 5 Overdrive 100mV 4 Overdrive = 50mV 3 2 2.5 3 3.5 4 4.5 5 1.5 5.5 SUPPLY VOLTAGE (V) VDD = 4V 3.5 3 4 4.5 5 2.5 VDD = 3V 3 ­40 5.5 25 Comparator Output Swing vs. Output Sink Current 2.5 VDD = 5V VDD = 4V VDD = 3V VDD = 2V 4 TA = 25°C 2.0 VOUT ­ VSS (V) 2.0 6 85 TEMPERATURE (°C) TA = 25°C Overdrive = 100mV 5 VDD = 2V 4 Comparator Output Swing vs. Output Source Current VDD ­ VOUT (V) VDD = 3V 1.5 VDD = 1.8V 1.0 VDD = 5.5V .5 1.5 VDD = 3V 1.0 VDD = 1.8V .5 VDD = 5.5V 3 ­40 0 25 0 0 85 TEMPERATURE (°C) Comparator Output Short-Circuit Current vs. Supply Voltage 60 1.240 TA = ­40°C REFERENCE VOLTAGE (V) TA = 25°C 40 TA = 85°C 30 TA 20 Sinking 10 Sourcing 0 = C 0° ­4 TA = 25°C TC1026-2 TC1026-2 1/04/01 6 0 6 VDD = 5.5V Sinking 1.200 Sourcing 1.180 1.160 VDD = 5V VDD = 1.8V VDD = 3V 1.140 0 2 6 4 8 LOAD CURRENT (mA) 8 1 2 3 4 5 6 ISINK (mA) VDD = 3V 1.220 TA = 85°C 3 1 2 4 5 SUPPLY VOLTAGE (V) 5 Line Transient Response of VREF Reference Voltage vs. Load Current VDD = 1.8V 50 0 3 2 4 ISOURCE (mA) 1 10 SUPPLY AND REFERENCE VOLTAGES (V) DELAY TO FALLING EDGE (µSEC) 2.5 VDD = 5V 5 SUPPLY VOLTAGE (V) Comparator Propagation Delay vs. Temperature 7 2 Overdrive = 100mV 6 2 1.5 OUTPUT SHORT -CIRCUIT CURRENT (mA) 7 TA = 25°C CL = 100pF DELAY TO RISING EDGE (µSEC) TA = 25°C CL = 100pF DELAY TO FALLING EDGE (µSEC) DELAY TO RISING EDGE (µSEC) 7 Comparator Propagation Delay vs. Temperature Comparator Propagation Delay vs. Supply Voltage 4 VDD 3 2 VREF 1 0 0 100 300 200 TIME (µsec) 2001 Microchip Technology Inc. 400 DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 TYPICAL CHARACTERISTICS Op Amp DC Open-Loop Gain vs. Temperature Op Amp DC Open-Loop Gain vs. Temperature 45 100 80 60 40 20 3.0 4.0 5.0 1500 1000 0 ­40°C 6.0 10% Overshoot ­5 ­10 RLAOD (K) Output Current (mA) 25°C Temperature (°C) 1000 ­15 ISRC 15 10 0 0.0 85°C 100 VDD = 3V, VCM = 1.5V Region of Stable Operation ­30 1 2.0 3.0 4.0 5.0 Supply Voltage (V) 0 6.0 1.0 2.0 3.0 4.0 5.0 Supply Voltage (V) 6.0 Op Amp Small-Signal Transient Response Region of Marginal Stability 10 ­25 1.0 20 Op Amp Load Resistance vs. Load Capacitance 0 ISINK 25 5 Op Amp Short-Circuit Current vs. Supply Voltage ­35 0.0 30 500 Supply Voltage (V) ­20 35 Input Voltage (mV) 2.0 2000 100 Output Voltage (mV) 1.0 40 2500 Output Current (mA) 120 0 0.0 50 3000 DC Open-Loop Gain (V/mV) DC Open-Loop Gain (dB) 140 Op Amp Short-Circuit Current vs. Supply Voltage 250 500 750 1000 1250 1500 1750 2000 Capacitive Load (pF) 50 0 100 50 0 10 20 30 40 50 60 70 80 TIME µsec 90 Op Amp Power Supply Rejection Ratio (PSRR) vs. Frequency Input Voltage (V) 6 0 4 ­10 Output Voltage (V) Op Amp Large-Signal Transient Response 6 2 VDD = 3V, VCM = 1.5V, VIN = 100mVpp ­20 PSRR (dB) 0 4 ­30 ­40 ­50 2 ­60 0 ­70 10 20 30 40 50 60 70 80 TIME µsec 2001 Microchip Technology Inc. DS21337A DS21337A 90 100 1K 10K Frequency (Hz) 9 100K TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage Reference Voltage vs. Supply Voltage 14 1.25 TA = 85°C SUPPLY CURRENT (µA) REFERENCE VOLTAGE (V) 12 1.20 1.15 1.10 1.05 1 4 2 3 SUPPLY VOLTAGE (V) 10 TA = 25°C TA = ­40°C 8 6 4 2 5 0 3 1 2 4 5 SUPPLY VOLTAGE (V) 6 TAPING FORM Component Taping Orientation for 8-Pin MSOP Devices User Direction of Feed User Direction of Feed PIN 1 W PIN 1 Standard Reel Component Orientation for TR Suffix Device P Reverse Reel Component Orientation for RT Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package 8-Pin MSOP TC1026-2 TC1026-2 1/04/01 Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 12 mm 8 mm 2500 13 in 10 2001 Microchip Technology Inc. DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 TAPING FORM (CONT.) Component Taping Orientation for 8-Pin SOIC (Narrow) Devices User Direction of Feed User Direction of Feed PIN 1 W PIN 1 P Standard Reel Component Orientation for TR Suffix Device Standard Reel Component Orientation for RT Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 12 mm 8 mm 2500 13 in 8-Pin SOIC (N) PACKAGE DIMENSIONS 8-Pin PDIP (Narrow) PIN 1 .260 (6.60) .240 (6.10) .045 (1.14) .030 (0.76) .070 (1.78) .040 (1.02) .310 (7.87) .290 (7.37) .400 (10.16) .348 (8.84) .200 (5.08) .140 (3.56) .040 (1.02) .020 (0.51) .150 (3.81) .115 (2.92) .110 (2.79) .090 (2.29) .015 (0.38) .008 (0.20) 3° MIN. .400 (10.16) .310 (7.87) .022 (0.56) .015 (0.38) Dimensions: inches (mm) 2001 Microchip Technology Inc. DS21337A DS21337A 11 TC1026-2 TC1026-2 1/04/01 Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 PACKAGE DIMENSIONS (CONT.) 8-Pin MSOP PIN 1 .122 (3.10) .114 (2.90) .197 (5.00) .187 (4.80) .026 (0.65) TYP. .122 (3.10) .114 (2.90) .043 (1.10) MAX. .016 (0.40) .010 (0.25) .008 (0.20) .005 (0.13) 6°MAX. .006 (0.15) .002 (0.05) .028 (0.70) .016 (0.40) 8-Pin SOIC (Narrow) PIN 1 .157 (3.99) .150 (3.81) .244 (6.20) .228 (5.79) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .069 (1.75) .053 (1.35) .010 (0.25) .007 (0.18) 8° MAX. .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10) .050 (1.27) .016 (0.40) Dimensions: inches (mm) TC1026-2 TC1026-2 1/04/01 12 2001 Microchip Technology Inc. DS21337A DS21337A Linear Building Block ­ Low-Power Comparator with Op Amp and Voltage Reference TC1026 TC1026 WORLDWIDE SALES AND SERVICE AMERICAS New York Corporate Office 150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 ASIA/PACIFIC (continued) San Jose Microchip Technology Inc. 2107 North First Street, Suite 590 San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-334-8870 Fax: 65-334-8850 Taiwan Atlanta 6285 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: 770-640-0034 Fax: 770-640-0307 Microchip Technology Taiwan 11F-3 11F-3, No. 207 Tung Hua North Road Taipei, 105, Taiwan Tel: 886-2-2717-7175 Fax: 886-2-2545-0139 ASIA/PACIFIC Austin EUROPE China - Beijing Australia Analog Product Sales 8303 MoPac Expressway North Suite A-201 Austin, TX 78759 Tel: 512-345-2030 Fax: 512-345-6085 Boston 2 Lan Drive, Suite 120 Westford, MA 01886 Tel: 978-692-3848 Fax: 978-692-3821 Boston Analog Product Sales Unit A-8-1 Millbrook Tarry Condominium 97 Lowell Road Concord, MA 01742 Tel: 978-371-6400 Fax: 978-371-0050 Toronto Microchip Technology Beijing Office Unit 915 New China Hong Kong Manhattan Bldg. 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Le Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 Printed on recycled paper. 01/09/01 Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchipís products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. 2001 Microchip Technology Inc. DS21337A DS21337A 13 TC1026-2 TC1026-2 1/04/01