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Product Detailed Parameters
- Description：PRECISION, LOW POWER INSTRUMENTA
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：Single-Ended
- Slew Rate：1.2V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：2 nA
- Voltage - Input Offset：-
- Current - Supply：700µA
- Current - Output / Channel：15 mA
- Voltage - Supply Span (Min)：4.5 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：20 kHz
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Overview
The INA129UAE4 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a gain set by an external resistor. Key electrical specifications include a maximum input bias current of 2 nA and an input offset voltage of 50 µV. The device operates within a supply voltage range of 4.5 V to 36 V. It supports a bandwidth of 1.3 MHz and offers a common-mode rejection ratio of up to 130 dB. The component is housed in an 8-SOIC package and functions reliably across a temperature range of -40°C to 125°C.
Feature Summary
- Precision instrumentation amplifier architecture
- Low power consumption design
- High common-mode rejection capability
- External gain setting flexibility
Applications
- Medical ECG signal conditioning
- Strain gauge measurement systems
- Thermocouple amplification circuits
- Industrial process control sensors
- Battery-powered instrumentation devices
Procurement Notes
Verify the specific suffix 'E4' indicates lead-free compliance and RoHS status against the official datasheet. Confirm availability as distribution status varies. Ensure the SOIC-8 package matches your PCB footprint requirements before ordering.
Selection Notes
Select this component when high accuracy and low power are required for sensor interfaces. Compare input bias current and offset voltage against application needs. Verify that the external gain resistor tolerance meets system precision requirements. Check operating temperature range compatibility.
Part Context
The INA129UAE4 belongs to the INA12x family of precision instrumentation amplifiers from Texas Instruments. This series is widely used in applications requiring high input impedance and accurate differential signal amplification. The AE4 suffix typically denotes environmental compliance attributes within the product line.
Replacement Considerations
Official substitutes within the same family include the INA128UA and INA129UA. Verify pinout compatibility and electrical parameter equivalence. Ensure the replacement part meets the same package and temperature specifications.
