INA111AP Instrumentation Amplifier IC (DIP 8, Precision, FET Input)

The INA111AP is a precision instrumentation amplifier from Texas Instruments designed for accurate amplification of low level differential signals. It features field effect transistor (FET) inputs with very low input bias current, high input impedance, and excellent common mode rejection. Its gain can be adjusted using a single external resistor, making it suitable for sensor signal conditioning, precision measurement, and industrial instrumentation applications.

Key Features -

• Precision instrumentation amplifier with FET inputs

• Very low input bias current

• High input impedance for sensitive signal sources

• High common mode rejection ratio

• Gain adjustable using a single external resistor

• Low offset voltage and low noise performance

• Suitable for high impedance sensor interfaces

• Standard 8 pin Dual Inline Package (DIP)

Specifications -

• Part Number: INA111AP

• Manufacturer: Texas Instruments

• IC Type: Precision Instrumentation Amplifier

• Package: DIP 8

• Number of Channels: 1

• Input Type: Differential FET Input

• Output Type: Single Ended Analog Output

• Gain Range: 1 to 1000

• Gain Adjustment: External resistor

• Supply Voltage: Plus and minus 6V to plus and minus 18V

• Input Bias Current: 2 pA typical

• Common Mode Rejection Ratio: Up to 110 dB, depending on gain and test conditions

• Mounting Type: Through Hole

Applications -

• Precision sensor signal conditioning

• Strain gauge and bridge measurement circuits

• High impedance sensor interfaces

• Medical instrumentation development

• Industrial process monitoring

• Data acquisition systems

• Laboratory test and measurement equipment

• Low level differential signal amplification