CJMCU-29 INA129HT High Precision Low Power Instrumentation Amplifier

The INA128-HT and INA129-HT are low-power, general-purpose instrumentation amplifiers offering excellent accuracy. The versatile three-operational-amplifier design and small size make them ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain. A single external resistor sets any gain from 1 to 10000. The INA128-HT provides an industry-standard gain equation; the INA129-HT gain equation is compatible with the AD620.

The INA128-HT and INA129-HT are laser trimmed for very low offset voltage (25 μV Typ) and high common-mode rejection (93 dB at G ≥ 100). These devices operate with power supplies as low as ±2.25 V, and quiescent current of 2 mA, typically. Internal input protection can withstand up to ±40 V without damage.

Texas Instruments' high-temperature products use highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures.

The CJMCU-29 INA129HT is available in 8-pin ceramic DIP and 8-pin ceramic surface-mount packages, specified for the -55°C to 210°C temperature range. The INA128-HT is available in an 8-pin SOIC-8 surface-mount package, specified for the -55°C to 175°C temperature range.

CJMCU-29 INA129HT Application:

1. Bridge Amplifiers
2. Thermocouple Amplifiers
3. RTD Sensor Amplifiers
4. Medical Instrumentation
5. Data Acquisition

CJMCU-29 INA129HT Specification:

1. Low Offset Voltage: 25uV Typical
2. Low Input Bias Current: 50nA Typical
3. High CMR: 95 dB Typical
4. Inputs Protected to ±40V
5. Wide Supply Range: ±2.25V to ±18V
6. Low Quiescent Current: 2mA Typical

Documents:

CJMCU-29 INA129HT Datasheet