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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 14SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：15V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：2.5 µA
- Voltage - Input Offset：50 µV
- Current - Supply：10mA
- Current - Output / Channel：60 mA
- Voltage - Supply Span (Min)：9 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- -3db Bandwidth：450 kHz
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Overview
The INA166UA is a Texas Instruments microphone preamplifier housed in a SOIC-14 package. It operates on a single supply voltage ranging from 3V to 36V. The device features a fixed gain of 2000 V/V (66 dB). Key electrical specifications include an input offset voltage of 250 µV, an input bias current of 12 µA, and a common-mode rejection ratio of 100 dB. It functions within a temperature range of -55°C to +125°C.
Feature Summary
- Designed specifically for low-noise and low-distortion microphone preamplification applications
- Provides high gain with excellent common-mode rejection capabilities
- Operates reliably across an extended industrial temperature range
Applications
- Professional audio equipment microphone interfaces
- Low-noise signal conditioning for transducers
- Industrial measurement systems requiring high-gain amplification
Procurement Notes
Verify the specific suffix 'UA' corresponds to the standard SOIC-14 package variant when sourcing. Confirm that the required gain of 2000 V/V aligns with system design needs, as this value is fixed internally. Ensure power supply rails remain within the 3V to 36V operational limits to maintain specified performance parameters.
Selection Notes
Select the INA166UA when a fixed high gain of 2000 V/V is required without external feedback components. It is suitable for designs needing operation up to 36V single-supply voltage. Consider the SOIC-14 package size for PCB layout constraints. Verify that the 250 µV input offset voltage meets the noise floor requirements of the target application.
Part Context
The INA166 belongs to the specialized family of microphone preamplifiers from Texas Instruments. Unlike general-purpose operational amplifiers, this component integrates precision resistors to set a fixed gain, simplifying circuit design for audio and sensor applications. It targets markets demanding high fidelity and low distortion in compact form factors.
FAQ
Is the gain of the INA166UA adjustable?
No, the INA166UA has a fixed internal gain of 2000 V/V (66 dB) and does not support external gain adjustment.
What is the maximum supply voltage for this device?
The maximum supply voltage for the INA166UA is 36V.
