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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：0.7V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：4 pA
- Voltage - Input Offset：300 µV
- Current - Supply：450µA
- Current - Output / Channel：14 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：5 kHz
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Overview
The INA121UAG4 is a FET-input, low power instrumentation amplifier manufactured by Texas Instruments. It features a versatile three-op amp design that provides excellent accuracy and high input impedance. The device is housed in an 8-SOIC package with a width of 3.90mm. It operates as a single-channel circuit designed for precision signal conditioning applications requiring low power consumption and high common-mode rejection.
Feature Summary
- FET-input architecture ensuring high input impedance
- Low power consumption characteristics
- Three-op amp topology for high accuracy
- Compact 8-SOIC packaging
Applications
- Precision signal conditioning
- Industrial process control systems
- Medical instrumentation equipment
Procurement Notes
Verify the specific suffix UAG4 against the official Texas Instruments datasheet to confirm pinout and electrical specifications match your design requirements. Ensure compatibility with your PCB footprint and thermal management strategy. Confirm RoHS compliance status through the manufacturer's current documentation before finalizing procurement decisions.
Selection Notes
Select this component when high input impedance and low power are critical alongside moderate bandwidth requirements. The three-op amp structure offers superior common-mode rejection compared to single-chip alternatives. Evaluate the 8-SOIC package constraints against your board space limitations and assembly capabilities.
Part Context
This part belongs to the INA121 family of instrumentation amplifiers from Texas Instruments. It is a legacy component often replaced by newer generations in modern designs. The UAG4 suffix indicates a specific tape-and-reel or tube packaging variant depending on the specific manufacturing batch and distributor listing.
Replacement Considerations
Texas Instruments lists this product as obsolete. Verify available substitutes such as the INA128 or INA333 series which offer similar performance metrics. Check pin-to-pin compatibility and electrical parameter overlaps before transitioning to alternative components.
