Texas Instruments

OPA4991QPWRQ1  

OP Amps, Buffer Amps ICs

The Texas Instruments OPA4991QPWRQ1 is a high-performance, low-noise, precision operational amplifier (op-amp) designed for a wide range of applications. Here is a description of the model, its features, and potential applications:

Description:

The OPA4991QPWRQ1 is a monolithic JFET input operational amplifier manufactured using Texas Instruments' advanced semiconductor processes. It is available in a compact 8-pin SOIC package (QPWRQ1). This op-amp is designed to provide excellent DC and AC performance, making it suitable for various precision applications.

Features:

1. Ultra-low input offset voltage: 250 µV (typical) and 750 µV (maximum) over the entire temperature range.
2. Low input bias current: 2 pA (typical) and 5 pA (maximum) for both input channels.
3. Low input offset current drift: 0.02 µA/°C (typical) and 0.05 µA/°C (maximum) over the entire temperature range.
4. High open-loop gain: 120 dB (typical) at DC.
5. Low output noise: 5 nV/√Hz (typical) at 1 kHz.
6. Wide supply voltage range: 3.3 V to 36 V.
7. Low supply current: 1.1 mA (typical) at a 5 V supply.
8. Wide bandwidth: 10 MHz (typical) with a 10 pF load.
9. Internal frequency compensation.
10. Rail-to-rail input and output stages.

Applications:

1. Precision DC and AC amplification.
2. Strain gauge and bridge amplifiers.
3. Medical instrumentation, such as patient monitoring equipment.
4. Data acquisition systems and signal conditioning.
5. Audio applications, including microphone preamps and headphone amplifiers.
6. Battery monitoring and management systems.
7. Industrial control systems and process control applications.
8. High-resolution analog-to-digital converter (ADC) and digital-to-analog converter (DAC) interfaces.
9. Photodiode amplifiers and other sensor conditioning circuits.
10. Low-noise instrumentation amplifiers.

The OPA4991QPWRQ1 is a versatile and high-performance operational amplifier that can be used in a wide range of precision applications where low noise, low input offset voltage, and low input bias current are critical.

OPA4991QPWRQ1 Documents

Download datasheets and manufacturer documentation for OPA4991QPWRQ1

PCN :

Product Change Notification (PDF)