Texas Instruments

OPA2991IDSGR  

OP Amps, Buffer Amps ICs

The Texas Instruments OPA2991IDSGR is a high-performance, low-noise, precision operational amplifier (op-amp) designed for a wide range of applications. Here's a brief description, features, and applications of the OPA2991IDSGR:

Description:

The OPA2991IDSGR is a member of the OPA299x family of operational amplifiers, which are designed for precision and low-noise applications. The device is available in a small 8-pin SOIC package (IDSGR), making it suitable for space-constrained designs.

Features:

1. Low input voltage noise: 4.3 nV/√Hz at 1 kHz
2. Low input bias current: 1 pA (typical)
3. High input impedance: 1 TΩ (typical)
4. Wide supply voltage range: 2.5 V to 36 V
5. Wide bandwidth: 10 MHz (typical)
6. Low output voltage drift: 50 µV/°C (typical)
7. Low distortion: 0.001% (typical)
8. Rail-to-rail input and output
9. Short-circuit protection
10. Thermal shutdown protection

Applications:

1. Audio applications: The low noise and high bandwidth make the OPA2991 suitable for high-quality audio amplifiers and preamplifiers.
2. Medical instrumentation: The low input bias current and low noise characteristics are ideal for medical sensors and signal conditioning circuits.
3. Data acquisition systems: The OPA2991 can be used in data acquisition systems for precise signal conditioning and amplification.
4. Strain gauge amplifiers: The low noise and low drift characteristics make the OPA2991 suitable for strain gauge signal conditioning in industrial applications.
5. pH measurement circuits: The precision and low drift of the OPA2991 make it suitable for pH measurement circuits in environmental monitoring and control systems.
6. Precision DC and AC amplification: The OPA2991 can be used for amplifying low-level DC and AC signals in various measurement and control applications.
7. Photodiode amplifiers: The low noise and high bandwidth of the OPA2991 make it suitable for amplifying signals from photodiodes in optical sensing applications.

In summary, the Texas Instruments OPA2991IDSGR is a versatile, precision operational amplifier with low noise and high performance characteristics, making it suitable for a wide range of applications, including audio, medical, industrial, and scientific instrumentation.

OPA2991IDSGR Documents

Download datasheets and manufacturer documentation for OPA2991IDSGR

Application Notes :

AC-coupled transimpedance amplifier circuit       Voltage-to-current (V-I) converter circuit with a Darlington transistor      

Technical Resources :

OPA2991 TINA-TI Model       OPA2991 TINA-TI Reference Design      

SPICE Models :

OPA2991 Pspice Model