Data Sheet
INA122 Single Supply, Micropower Instrumentation Amplifier
1 Features
- Low quiescent current: 60μA
- Wide power supply range: 2.2V to 36V
- Rail-to-rail output swing
- Low offset voltage: 250μV maximum
- Low offset drift: 3μV/°C maximum
- Low noise: 60nV/√Hz
- Low input bias current: 25nA maximum
- Packages
- 4.9mm × 6mm SOIC
- 9.81mm × 9.43mm PDIP
3 Description
The INA122 is a precision instrumentation amplifier for accurate, low-noise differential signal acquisition. The two-op-amp design provides excellent performance with very low quiescent current (60μA), and is designed for portable instrumentation and data acquisition systems. The INA122 can be operated with single or dual power supplies from 2.2V to 36V.
A single external resistor sets gain from 5V/V to 10000V/V. Laser trimming provides very low offset voltage (250μV maximum), offset voltage drift (3μV/°C maximum) and excellent common-mode rejection.
Package options include 8-pin plastic DIP and SOIC surface-mount packages. Both packages are specified for the −40°C to +85°C temperature range.
Package Information
| PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) |
|---|---|---|
| INA122 | P (PDIP, 8) | 9.81mm × 9.43mm |
| D (SOIC, 8) | 4.9mm × 6mm |
(1) For all available packages, see Section 10.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
INA122 Basic Connections