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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：4V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：2 nA
- Voltage - Input Offset：25 µV
- 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：1.3 MHz
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Overview
The INA129UA/2K5 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a 1.3 MHz bandwidth and a 4 V/us slew rate. The device operates on supply voltages ranging from 4.5 V to 36 V. Key electrical specifications include a maximum input offset voltage of 1125 uV, an input bias current of 5 nA, and a typical common-mode rejection ratio of 120 dB. It consumes 700 uA of operating power and functions within a temperature range of -40 C to +125 C. The component is housed in an 8-pin SOIC package.
Feature Summary
- Precision instrumentation amplifier design
- Low power consumption capability
- High common-mode rejection ratio
Applications
- Industrial process control systems
- Medical equipment signal conditioning
- Data acquisition modules
- Strain gauge sensor interfaces
Procurement Notes
Verify the specific datasheet version for the INA129UA/2K5 variant to ensure all electrical parameters match your design requirements. Confirm that the SOIC-8 package dimensions align with your PCB footprint constraints. Check for any recent manufacturing changes or obsolescence notices directly from Texas Instruments before finalizing procurement plans.
Selection Notes
Select this component when high precision and low power are critical simultaneously. The 120 dB CMRR makes it suitable for noisy environments. Compare against the INA128 for similar performance or the INA126 for lower power needs. Ensure the 4.5 V minimum supply voltage fits your system architecture.
Part Context
This part belongs to the INA129 series of instrumentation amplifiers from Texas Instruments. It is designed as a general-purpose, low-cost solution for precision applications. The UA suffix indicates the plastic SOIC package variant. It serves as a direct replacement for older Burr-Brown designs in many legacy circuits.
Replacement Considerations
Official substitutes include the INA129UAE4 and INA129U. Verify pin compatibility and thermal characteristics when substituting. The INA128U offers similar performance with slight parameter variations. Always consult the latest manufacturer documentation for cross-reference validity.
