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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：17V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：2 pA
- Voltage - Input Offset：200 µV
- Current - Supply：3.3mA
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：12 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- -3db Bandwidth：2 MHz
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Overview
The INA111AU/1K is a high-speed FET-input instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a 3dB bandwidth of 2 MHz and a slew rate of 17 V/us. Key electrical parameters include a common-mode rejection ratio (CMRR) of 106 dB, input bias current of 20 pA, and input offset voltage of 500 uV. The device operates on a power supply ranging from 12 V to 36 V, with a typical operating current of 3.3 mA. It supports an operating temperature range from -40 C to +85 C and is housed in an SMD/SMT package.
Feature Summary
- High-speed FET-input architecture for precision signal conditioning
- Low input bias current ensuring minimal loading on source impedance
- High common-mode rejection ratio for accurate differential measurements
Applications
- Precision data acquisition systems
- Medical instrumentation requiring low noise and high CMRR
- Industrial process control sensors
Procurement Notes
Verify the specific suffix /1K indicates reel packaging configuration when ordering. Confirm the AU variant meets the required commercial temperature range specifications. Ensure compatibility with the target PCB footprint for the specified surface-mount package type before finalizing procurement plans.
Selection Notes
Select this component when high bandwidth and low input bias current are critical requirements. Compare against standard bipolar instrumentation amplifiers if lower cost is prioritized over speed. Verify that the 12 V minimum supply voltage aligns with the system power budget constraints.
Part Context
This part belongs to the INA111 series of instrumentation amplifiers. It is designed for applications demanding high accuracy and fast response times. The AU designation typically refers to the plastic small-outline package variant suitable for automated surface-mount assembly processes.
Replacement Considerations
Consult official TI documentation for direct pin-compatible substitutes within the INA111 family. Verify electrical parameter equivalence for bandwidth and CMRR when considering alternative manufacturers.
