Product Overview: Texas Instruments OPA191IDR Operational Amplifier

The OPA191IDR from Texas Instruments is a high-performance, single-supply operational amplifier that offers precision and low power consumption, making it ideal for a wide range of applications. This operational amplifier is part of the OPAx191 family of devices which are designed to operate over a wide supply range of 4V to 36V, or ±2V to ±18V for dual-supply operations.

With its rail-to-rail input and output swing, the OPA191IDR provides excellent dynamic range, which is essential for modern analog-to-digital converters (ADCs) and other high-precision applications. The device features a low offset voltage of 150 µV (max) and low noise density of 7.5 nV/√Hz, ensuring high accuracy and signal fidelity in measurement and control systems.

The OPA191IDR is characterized by its low input bias current of 0.2 pA (typical), which minimizes errors in high impedance sensor applications and precision integrators. Moreover, its fast settling time and high slew rate of 10 V/µs make it suitable for fast signal conditioning circuits, data acquisition systems, and active filters.

This operational amplifier also offers robust EMI and RFI filtered inputs, which reduce the susceptibility to electromagnetic interference, making it a reliable choice for industrial environments where such disturbances are common. The OPA191IDR comes in a small SOIC-8 package, which is ideal for space-constrained applications, and it operates over a wide temperature range of -40°C to +125°C, ensuring consistent performance in various operating conditions.

In summary, the OPA191IDR from Texas Instruments is a versatile, high-precision operational amplifier that offers low power consumption, high accuracy, and robustness against interference. Its wide supply voltage range and rail-to-rail input/output make it suitable for a variety of applications, including test and measurement equipment, industrial controls, medical devices, and consumer electronics.

Key Features:

• Rail-to-rail input/output
• Low offset voltage: 150 µV (max)
• Low noise density: 7.5 nV/√Hz
• Low input bias current: 0.2 pA (typ)
• Wide supply range: 4V to 36V, or ±2V to ±18V
• EMI/RFI filtered inputs
• Operating temperature range: -40°C to +125°C
• SOIC-8 package