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Precision Resistor Network for Programmable Instrumentation Amplifiers

Product Details

Key Features

Parametric specs for Digital Potentiometers
Steps 4
# Potentiometers 1
Control Interface 2-Wire Parallel
Wiper Memory Volatile
REND-TO-END (kΩ) 15
Res. Tol. (%) 0.025
Temp. Coeff. (ppm/°C) (typ) 35
ICC @5V (µA) (max) 90
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
4.3
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Simplified Block Diagram

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Parameters

Parametric specs for Digital Potentiometers
Steps 4
# Potentiometers 1
Control Interface 2-Wire Parallel
Wiper Memory Volatile
REND-TO-END (kΩ) 15
Res. Tol. (%) 0.025
Temp. Coeff. (ppm/°C) (typ) 35
ICC @5V (µA) (max) 90
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
4.3

Key Features

  • Differential Gains: AV = 1, 2, 4, 8
  • Gain Accurate to 0.025%, 0.09%, or 0.5%
  • Dual Supply ±5V to ±15V Operation
  • Low 36µA Supply Current
  • Simple CMOS/TTL Logic Compatible 2-Wire Parallel Interface
  • Space-Saving 14-Pin TSSOP Package (6.4mm x 5mm)
  • OFFSET Pin Available to Offset the Output of the Differential Amplifier

Applications/Uses

  • Gain Control in RF Power Amplifiers
  • General-Purpose Programmable Instrumentation Amplifiers
  • Precision Dual Attenuator

Description

The MAX5426 is a precision resistor network optimized for use with programmable instrumentation amplifiers. The MAX5426 operates from dual ±5V to ±15V supplies and consumes less than 40µA of supply current. Designed to be used in the traditional three op amp instrumentation amplifier topology, this device provides noninverting gains of 1, 2, 4, and 8 that are accurate to 0.025% (A-grade), 0.09% (B-grade), or 0.5% (C-grade) over the extended temperature range (-40°C to +85°C). The MAX5426 is available in the 6.4mm x 5mm 14-pin TSSOP package.

Simplified Block Diagram

MAX5426: Typical Operating Circuit MAX5426: Typical Operating Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .