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PGA205
  • PGA205
  • PGA205

PGA205

ACTIVE

50-µV offset, g= 1, 2, 4, 8 programmable gain instrumentation amplifier

Texas Instruments PGA205 Product Info

1 April 2026 3

Parameters

PGA/VGA

PGA

Number of channels

1

Vs (min) (V)

9

Vs (max) (V)

36

Input type

Differential

Output type

Single-ended

Input offset drift (±) (typ) (µV/°C)

0.16

Interface type

GPIO

Noise at 1 kHz (typ) (V√Hz)

0.000000015

BW at Acl (MHz)

1

Acl, min spec gain (V/V)

1

Gain (max) (dB)

18

Architecture

Bipolar

Features

Overvoltage protection

Vos (offset voltage at 25°C) (typ) (mV)

0.0125

Input voltage noise (typ) (µV√Hz)

0.015

Slew rate (typ) (V/µs)

0.7

Iq per channel (typ) (mA)

5.2

Gain error (typ) (%)

0.01

Gain drift (max) (ppm/°C)

10

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

PDIP (N)-16-181.42 mm² 19.3 x 9.4

Features

  • DIGITALLY PROGRAMMABLE GAIN:
    • PGA204: G=1, 10, 100, 1000V/V
    • PGA205: G=1, 2, 4, 8V/V
  • LOW OFFSET VOLTAGE: 50µV max
  • LOW OFFSET VOLTAGE DRIFT: 0.25µV/°C
  • LOW INPUT BIAS CURRENT: 2nA max
  • LOW QUIESCENT CURRENT: 5.2mA typ
  • NO LOGIC SUPPLY REQUIRED
  • 16-PIN PLASTIC DIP, SOL-16 PACKAGES
  • APPLICATIONS
    • DATA ACQUISITION SYSTEM
    • GENERAL PURPOSE ANALOG BOARDS
    • MEDICAL INSTRUMENTATION
  • DIGITALLY PROGRAMMABLE GAIN:
    • PGA204: G=1, 10, 100, 1000V/V
    • PGA205: G=1, 2, 4, 8V/V
  • LOW OFFSET VOLTAGE: 50µV max
  • LOW OFFSET VOLTAGE DRIFT: 0.25µV/°C
  • LOW INPUT BIAS CURRENT: 2nA max
  • LOW QUIESCENT CURRENT: 5.2mA typ
  • NO LOGIC SUPPLY REQUIRED
  • 16-PIN PLASTIC DIP, SOL-16 PACKAGES
  • APPLICATIONS
    • DATA ACQUISITION SYSTEM
    • GENERAL PURPOSE ANALOG BOARDS
    • MEDICAL INSTRUMENTATION

Description

The PGA204 and PGA205 are low cost, general purpose programmable-gain instrumentation amplifiers offering excellent accuracy. Gains are digitally selected: PGA204—1, 10, 100, 1000, and PGA205—1, 2, 4, 8V/V. The precision and versatility, and low cost of the PGA204 and PGA205 make them ideal for a wide range of applications.

Gain is selected by two TTL or CMOS-compatible address lines, A0 and A1. Internal input protection can withstand up to ±40V on the analog inputs without damage.

The PGA204 and PGA205 are laser trimmed for very low offset voltage (50µV), drift (0.25µV/°C) and high common-mode rejection (115dB at G=1000). They operate with power supplies as low as ±4.5V, allowing use in battery operated systems. Quiescent current is 5mA.

The PGA204 and PGA205 are available in 16-pin plastic DIP, and SOL-16 surface-mount packages, specified for the &3150;40°C to +85°C temperature range.

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