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Product Detailed Parameters
- Description：IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：Differential
- Number of Circuits：1
- Output Type：-
- Slew Rate：14V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：100 µV
- Current - Supply：2.4mA
- Current - Output / Channel：60 mA
- Voltage - Supply Span (Min)：8 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：4 MHz
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Overview
The INA157UA is a high-speed, precision difference amplifier manufactured by Texas Instruments. It features a gain bandwidth product of 4 MHz and a slew rate of 14 V/us. The device operates within a supply voltage range of 8 V to 36 V and consumes 2.4 mA of quiescent current. It offers a common-mode rejection ratio of 80 dB and an input offset voltage of 100 uV. The output can source up to 60 mA per channel. Gain options include 0.5 V/V and 2 V/V with a maximum gain error of 0.05%. It functions reliably between -40°C and +85°C in an SOIC-8 package.
Feature Summary
- Provides high-speed signal processing capabilities with a 4 MHz gain-bandwidth product and 14 V/us slew rate for rapid response.
- Delivers precision performance characterized by low input offset voltage and minimal gain error for accurate differential measurements.
- Supports wide supply voltage operation from 8 V to 36 V, enabling compatibility with various power systems.
- Features robust common-mode rejection to effectively isolate differential signals from noise.
Applications
- High-speed data acquisition systems requiring precise differential signal conditioning
- Industrial process control applications involving sensor signal amplification
- Medical instrumentation equipment needing accurate physiological signal measurement
Procurement Notes
Verify the specific ordering suffix to confirm packaging type, as variations exist between tube and reel formats. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm that the SOIC-8 package dimensions align with your PCB footprint design. Check for moisture sensitivity level ratings if reflow soldering is planned. Validate that the operating temperature range suits your environmental conditions.
Selection Notes
Select this component when high-speed differential amplification is required alongside precision accuracy. Consider the 8 V minimum supply voltage constraint during power budgeting. Evaluate the 60 mA output current capability against load requirements. Compare the 4 MHz bandwidth against signal frequency needs to ensure adequate response. Assess the trade-off between speed and power consumption given the 2.4 mA quiescent current draw.
Part Context
The INA157UA belongs to the INA157 series of difference amplifiers from Texas Instruments. This series is designed for applications demanding both speed and precision in single-channel configurations. It serves as a specialized analog signal conditioning solution within the broader portfolio of operational and differential amplifiers offered by the manufacturer.
Replacement Considerations
Publicly confirmed substitute part numbers include INA157U, INA157UA/2K5, INA157U/2K5E4, INA157UA/2K5G4, and INA157U/2K5. Verify pinout compatibility and electrical parameter equivalence before substitution.
