Overview
The OPA2991QDRQ1, produced by Texas Instruments, is a high-performance, automotive-grade operational amplifier designed for precision applications. This model is part of the OPAx991-Q1 family, which is specifically engineered to meet the stringent requirements of automotive electronics. The OPA2991QDRQ1 features low offset voltage, low noise, and rail-to-rail input and output capabilities, making it ideal for a wide range of applications in automotive systems, industrial control, and consumer electronics. Its robust design and high reliability ensure consistent performance in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 40 | V | ±1.35V to ±20V |
| Input Offset Voltage | ±125 | µV | VCM = V- |
| Input Offset Voltage Drift | ±0.3 | µV/°C | TA = -40°C to 125°C |
| Noise | 10.8 | nV/√Hz | at 1kHz |
| Common Mode Rejection Ratio | 130 | dB | |
| Input Bias Current | ±10 | pA | |
| Bandwidth | 4.5 | MHz | GBW |
| Slew Rate | 21 | V/µs | |
| Quiescent Current | 560 | µA | per amplifier |
Key Features
- Low offset voltage and drift for precision applications
- Low noise performance for signal integrity
- Rail-to-rail input and output for maximum dynamic range
- High common-mode rejection ratio for noise immunity
- Wide supply voltage range for versatile applications
- Low quiescent current for power efficiency
Applications
The OPA2991QDRQ1 is widely used in automotive systems, including advanced driver-assistance systems (ADAS), infotainment systems, and engine control units. Its precision and reliability also make it suitable for industrial control systems, such as process control and automation. In consumer electronics, it is used in audio equipment, sensors, and portable devices where low power consumption and high performance are critical.
Q & A
1. What is the operating temperature range of the OPA2991QDRQ1?
The OPA2991QDRQ1 operates over a temperature range of -40°C to 125°C.
2. Does the OPA2991QDRQ1 support rail-to-rail operation?
Yes, it supports rail-to-rail input and output operation.
3. What is the typical input offset voltage of the OPA2991QDRQ1?
The typical input offset voltage is ±125 µV.
4. Is the OPA2991QDRQ1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified, making it suitable for automotive applications.
5. What is the bandwidth of the OPA2991QDRQ1?
The bandwidth is 4.5 MHz.
6. What is the quiescent current of the OPA2991QDRQ1?
The quiescent current is 560 µA per amplifier.
7. Can the OPA2991QDRQ1 drive capacitive loads?
Yes, it can drive capacitive loads up to 1 nF.
8. What is the slew rate of the OPA2991QDRQ1?
The slew rate is 21 V/µs.
9. Is the OPA2991QDRQ1 RoHS compliant?
Yes, it is RoHS compliant.
10. What is the common-mode rejection ratio of the OPA2991QDRQ1?
The common-mode rejection ratio is 130 dB.
