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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)
- 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 INA157U/2K5 is a high-speed precision difference amplifier manufactured by Texas Instruments. It features a small signal bandwidth of 4 MHz and a typical slew rate of 14 V/us. The device operates within a supply voltage range of 8V to 36V, or ±4V to ±18V. Key electrical parameters include a minimum common-mode rejection ratio (CMRR) of 86 dB, a maximum gain drift of 1 ppm/C, and an input offset voltage of ±500 uV. Gain options are available at 0.5 V/V and 2 V/V, with a maximum gain error of 0.05%. It is housed in an 8-SOIC package group.
Feature Summary
- High-speed operation with a 4 MHz bandwidth and 14 V/us slew rate for fast signal processing.
- Precision performance characterized by low gain drift and controlled input offset voltage.
- Wide common-mode input range extending from -37.5V to +37.5V.
- Fixed gain configurations available at 0.5 V/V and 2 V/V.
Applications
- Industrial process control systems requiring precise differential signal conditioning.
- Medical equipment utilizing high-speed data acquisition channels.
- Test and measurement instrumentation needing accurate voltage difference amplification.
Procurement Notes
Verify the specific suffix /2K5 indicates cut-tape packaging when ordering. Confirm the SOIC-8 package dimensions against your PCB footprint requirements. Ensure the operating temperature range of -40°C to +85°C aligns with your system's thermal environment. Check for RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when both high speed and precision are critical simultaneously. The fixed gain options simplify circuit design compared to programmable alternatives. Consider the wide common-mode range if interfacing with signals having large DC offsets relative to ground. Evaluate power consumption against system constraints given the 2.4 mA typical quiescent current.
Part Context
This part belongs to the INA157 family of high-speed precision difference amplifiers. It serves as a monolithic solution for applications requiring matched internal resistors to maintain high CMRR without external trimming. The U suffix denotes the SOIC-8 surface-mount package variant.
Replacement Considerations
Public confirmed substitute part numbers include INA157UA-2K5, INA157U-2K5E4, INA157UA-2K5G4, INA157U-2K5, INA157UA/2K5, INA157U/2K5E4, INA157UA/2K5G4, and INA157U.
