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Product Detailed Parameters
- Description：IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- 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
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Overview
The INA143UA is a single-channel precision difference amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates on dual or single power supplies ranging from 4.5 V to 36 V. Key electrical specifications include a supply current of 950 µA, an output current capability of 32 mA, and a slew rate of 5 V/µs. The device features a -3 dB bandwidth of 150 kHz and an input offset voltage of 100 µV. It supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Precision difference amplifier architecture designed for high accuracy signal processing
- Capable of operation with both single and dual power supply configurations
- High common-mode rejection ratio ensures effective noise suppression
- Integrated design eliminates the need for external precision resistors
Applications
- Industrial process control systems requiring precise differential signal measurement
- Medical instrumentation equipment demanding high accuracy and low noise
- Data acquisition systems utilizing sensor interfaces
- Battery-powered devices benefiting from efficient power consumption profiles
Procurement Notes
Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements for storage and handling. Check for valid replacement options such as the INA143UAG4 variant if original stock is unavailable. Ensure packaging integrity matches project specifications.
Selection Notes
Select this component when a fixed gain difference amplifier is required without external resistor matching. Consider the 150 kHz bandwidth and 5 V/µs slew rate for signal frequency limitations. Evaluate the 8-SOIC package dimensions against PCB layout constraints. Verify that the 950 µA supply current aligns with system power budget requirements.
Part Context
The INA143UA belongs to the INA143 family of difference amplifiers produced by Texas Instruments. This series provides a monolithic solution for differential signal conditioning. The UA suffix indicates a specific tape-and-reel or tube packaging configuration within the standard product line. It serves as a specialized integrated circuit for applications needing reliable analog signal processing.
Replacement Considerations
The INA143UAG4 is listed as a manufacturer-recommended alternative. Verify pin compatibility and parameter equivalence before substitution. Note that the original part may be discontinued.
