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Product Detailed Parameters
- Description：IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Amplifier Type：Differential
- Number of Circuits：1
- Output Type：-
- Slew Rate：5V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：100 µV
- Current - Supply：950µA
- Current - Output / Channel：32 mA
- Voltage - Supply Span (Min)：4.5 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：150 kHz
Download product information
Overview
The INA143UA/2K5 is a precision unity-gain differential amplifier manufactured by Texas Instruments. It features an input offset voltage of 100 µV and a gain error of 0.01%. The device operates on a single or dual power supply ranging from 4.5 V to 36 V, with a typical supply current of 950 µA. Key electrical specifications include a slew rate of 5 V/µs, a bandwidth of 150 kHz, and a common-mode rejection ratio (CMRR) of 86 dB. It is housed in an 8-SOIC package.
Feature Summary
- Precision differential amplification with unity gain configuration
- High common-mode rejection ratio for noise reduction
- Low power consumption suitable for battery-operated systems
- Wide single-supply operating voltage range
Applications
- Current sensing applications
- Data acquisition systems
- Industrial process control instrumentation
- Medical equipment signal conditioning
Procurement Notes
Verify the specific suffix /2K5 indicates reel packaging when ordering. Confirm the component status as End-of-Life (EOL) per manufacturer notices. Ensure compatibility with existing PCB footprints for the 8-SOIC package. Check RoHS compliance status for environmental regulations. Validate lead times due to potential discontinuation.
Selection Notes
Select this component for applications requiring high accuracy differential voltage measurement without external gain resistors. Consider the 100 µV offset voltage for low-signal integrity. Evaluate the 950 µA supply current against power constraints. Ensure the 8-SOIC package fits the mechanical design. Verify the 36 V maximum supply voltage meets system requirements.
Part Context
The INA143 is part of Texas Instruments' precision amplifier family designed for high-accuracy signal processing. The UA variant denotes the standard commercial temperature grade. This series is widely used in industrial and medical fields where precise differential signaling is critical. The component integrates internal matched resistors to simplify circuit design.
Replacement Considerations
INA143UAG4 is a verified alternative from Texas Instruments. Check for pin-to-pin compatibility and updated manufacturing dates. Verify if the AG4 suffix implies any changes in packaging or material composition. Ensure performance parameters remain within acceptable limits for the application.
