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MAX5420 Dataheets PDF



Part Number MAX5420
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Digitally Programmable Precision Voltage Divider
Datasheet MAX5420 DatasheetMAX5420 Datasheet (PDF)

www.DataSheet.co.kr 19-2229; Rev 1; 7/03 Digitally Programmable Precision Voltage Divider for PGAs General Description The MAX5420 and MAX5421 are digitally programmable precision voltage dividers optimized for use in digitally programmable gain amplifier configurations. The MAX5420/ MAX5421 operate from a single +5V supply or dual ±5V supply, and consume only 3µA supply current. These devices consist of a digitally selectable resistor array that provides four precision noninverting gains of 1.

  MAX5420   MAX5420



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www.DataSheet.co.kr 19-2229; Rev 1; 7/03 Digitally Programmable Precision Voltage Divider for PGAs General Description The MAX5420 and MAX5421 are digitally programmable precision voltage dividers optimized for use in digitally programmable gain amplifier configurations. The MAX5420/ MAX5421 operate from a single +5V supply or dual ±5V supply, and consume only 3µA supply current. These devices consist of a digitally selectable resistor array that provides four precision noninverting gains of 1, 2, 4, and 8 for PGAs. The MAX5420 and MAX5421 achieve a resistor ratio accuracy of 0.025% (MAX542_A), 0.09% (MAX542_B), and 0.5% (MAX542_C). The MAX5421 includes an on-chip matching resistor for op amp bias-current compensation. The MAX5420 and MAX5421 are available in 8-pin and 10-pin µMAX packages. The devices are specified over the extended temperature range (-40°C to +85°C). Features o Four Precision Divider Ratios For Noninverting Gains of 1, 2, 4, and 8 in PGAs o 0.025%, 0.09%, or 0.5% Ratio Accuracy Guaranteed Over -40°C to +85°C o On-Chip Matching Resistor for Op Amp BiasCurrent Compensation (MAX5421) o 5V Single or ±5V Dual Supply Operation o Low 3µA Supply Current o CMOS/TTL Logic Compatible 2-Wire Parallel Interface o Small 8-Pin and 10-Pin µMAX Packages MAX5420/MAX5421 Applications General-Purpose Programmable Noninverting Amplifiers Programmable Instrumentation Amplifiers Ordering Information PART TEMP RANGE -40°C to +85°C PINPACKAGE 8 µMAX 8 µMAX 8 µMAX 10 µMAX 10 µMAX 10 µMAX GAIN ACCURACY 0.025% 0.09% 0.5% 0.025% 0.09% 0.5% MAX5420AEUA -40°C to +85°C MAX5420BEUA MAX5420CEUA -40°C to +85°C MAX5421AEUB -40°C to +85°C MAX5421BEUB -40°C to +85°C MAX5421CEUB -40°C to +85°C Functional Diagram TOP VIEW VDD 1 2 Pin Configurations 8 7 H W L D1 VDD MAX5420 MAX5421 D0 DECODER D1 MATCH_H MATCH_L H VSS GND MAX5420 3 6 5 W D0 4 µMAX-8 VDD 1 10 H 9 W L MATCH_H MATCH_L VSS GND L MAX5421 ONLY VSS GND D0 D1 2 3 4 5 MAX5421 8 7 6 µMAX-10 ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Datasheet pdf - http://www.DataSheet4U.net/ w w w . D a t a S h e e t . c o . k r Digitally Programmable Precision Voltage Divider for PGAs MAX5420/MAX5421 ABSOLUTE MAXIMUM RATINGS VDD to GND ..............................................................-0.3V to +6V VSS to GND...............................................................+0.3V to -6V D0, D1 to GND ...........................................-0.3V to (VDD + 0.3V) H, L, W, MATCH_ to GND ................(VSS - 0.3V) to (VDD + 0.3V) Input and Output Latchup Immunity.................................±50mA Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX (derate 4.1mW/°C above +70°C) .............333mW 10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW Operating Tempera.


MSLB9082 MAX5420 MAX5421


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