Overview
The OPA2191ID is a precision operational amplifier produced by Texas Instruments, designed for low-power, high-performance applications. It belongs to the OPAx191 series, which features 36V e-trim CMOS technology, offering rail-to-rail input and output capabilities. This model is particularly suited for industrial applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | ±20 (single supply +40) | V | |
| Input Voltage Range | (V–) – 0.5 to (V+) + 0.5 | V | Common mode |
| Output Short Circuit | Continuous | To ground | |
| Operating Temperature | -40 to 150 | °C | |
| Offset Voltage | ±5 | µV | Typical |
| Bandwidth | 2.5 | MHz | |
| Slew Rate | 5.5 | V/µs | |
| Quiescent Current | 0.14 | mA | Per channel |
Key Features
- Rail-to-rail input and output for maximum dynamic range.
- Low offset voltage and low offset drift ensure high precision.
- Low power consumption with a quiescent current of 140µA per amplifier.
- High capacitive load drive capability up to 1nF.
- EMI hardened inputs reduce the need for external filtering.
Applications
The OPA2191ID is ideal for a variety of precision applications, including industrial automation, sensor signal conditioning, and active filtering. Its robust design and high precision make it suitable for medical devices, test and measurement equipment, and data acquisition systems where accuracy and low power are critical.
Q & A
What is the supply voltage range for the OPA2191ID?
The OPA2191ID can operate with a supply voltage range from ±2.25V to ±18V, or 4.5V to 36V in single supply configurations.
Can the OPA2191ID drive capacitive loads?
Yes, it can drive capacitive loads up to 1nF without oscillation.
What is the typical offset voltage of the OPA2191ID?
The typical offset voltage is ±5µV.
Is the OPA2191ID suitable for high precision applications?
Yes, its low offset voltage and low offset drift make it ideal for high precision applications.
What is the operating temperature range of the OPA2191ID?
It operates within a temperature range of -40°C to +150°C.
Does the OPA2191ID have EMI hardened inputs?
Yes, it features EMI hardened inputs which reduce the need for external filtering.
What is the quiescent current of the OPA2191ID?
The quiescent current is typically 140µA per amplifier.
Can the OPA2191ID be used in single supply applications?
Yes, it is designed to work in both single and dual supply applications.
What is the bandwidth of the OPA2191ID?
The bandwidth is 2.5MHz.
Is the OPA2191ID available in different package types?
Yes, it is available in standard packages such as SOIC-8 and VSSOP-8.
