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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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/2K5E4 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 offers a high common-mode rejection ratio of 120 dB and an input bias current of 5 nA. It operates on supply voltages ranging from 4.5 V to 36 V or ±2.25 V to ±18 V. The unit consumes 700 µA of operating current and functions within a temperature range of -40°C to +125°C. It is housed in an 8-pin SOIC package.
Feature Summary
- Precision instrumentation amplifier design
- Low power consumption profile
- High common-mode rejection capability
Applications
- Strain gauge measurements
- Thermocouple amplification
- Bridge sensor signal conditioning
- Medical equipment front-ends
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and compliance status. Confirm that the E4 designation aligns with the required lead-free specifications for your assembly process. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement decisions.
Selection Notes
Select this component when high accuracy and low power are critical requirements. The 120 dB CMRR makes it suitable for noisy environments. Ensure the supply voltage range matches your system constraints. Consider the SOIC-8 package dimensions for PCB layout compatibility. Verify thermal performance within the specified operating temperature range.
Part Context
This part belongs to the INA129 series of instrumentation amplifiers from Texas Instruments. It shares core architectural similarities with other members like the INA128 but offers specific performance characteristics tailored for precision applications. The series is known for its ease of use with a single external gain resistor.
Replacement Considerations
Official substitutes include the INA129U and INA129UAE4. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the replacement part meets the same package and environmental specifications.
