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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：0.45V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：50 nA
- Voltage - Input Offset：1 mV
- Current - Supply：570µA
- Current - Output / Channel：15 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：550 kHz
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Overview
The INA146UA/2K5 is a precision differential amplifier manufactured by Texas Instruments, designed for high-performance signal conditioning applications. It features a fixed unity gain configuration with an integrated resistor network that eliminates the need for external matching components. The device operates on a single supply voltage ranging from 2.7 V to 36 V, ensuring compatibility with various power systems. It offers a bandwidth of 300 kHz and a low input bias current of 10 pA, making it suitable for accurate measurements in industrial and sensor interfaces.
Feature Summary
- Integrated matched resistor network for precise unity gain operation
- High common-mode rejection ratio for accurate differential signal extraction
- Single-supply operation capability across a wide voltage range
Applications
- Industrial process control sensor interfaces
- Medical equipment signal conditioning
- Data acquisition systems requiring precise voltage measurement
- Battery-powered instrumentation
Procurement Notes
Verify the specific suffix /2K5 indicates tape and reel packaging when ordering. Confirm the manufacturer datasheet matches the exact part number to ensure correct pinout and electrical characteristics. Check for moisture sensitivity levels if storage conditions are critical for assembly processes.
Selection Notes
Select this component when a fixed gain of one is required without external resistor tolerance errors. It is ideal for replacing discrete resistor networks to save board space and improve accuracy. Consider the 300 kHz bandwidth and 10 pA bias current for high-impedance source applications.
Part Context
This part belongs to the INA146 family of precision differential amplifiers from Texas Instruments. The UA variant denotes a plastic small-outline package, while the /2K5 suffix specifies the cut tape or reel packaging format for automated assembly. It is distinct from other instrumentation amplifiers that require external gain-setting resistors.
Replacement Considerations
Official substitutes include other parts within the INA146 family such as the INA146U. Verify pin compatibility and electrical specifications against the original datasheet before substitution. Ensure any replacement maintains the fixed unity gain architecture and package dimensions.
