FEATURES

DIGITALLY PROGRAMMABLE GAIN:

PGA204: G=1, 10, 100, 1000V/V

PGA205: G=1, 2, 4, 8V/V

LOW OFFSET VOLTAGE: 50mV max

LOW OFFSET VOLTAGE DRIFT: 0.25mV/°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 (50mV), drift (0.25mV/°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 –40°C to +85°C temperature range.