Overview
The OPA197IDR, produced by Texas Instruments, is a high-performance operational amplifier (op-amp) that belongs to the OPAx197 family. This device is known for its exceptional dc precision and ac performance, making it suitable for high-voltage, industrial applications. The OPA197IDR features rail-to-rail input and output, low offset voltage, and high output current, ensuring robust performance in a variety of demanding environments. It is available in several package options, including SOIC, SOT, and VSSOP, and is specified to operate over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±18 V, VCM = (V+) – 1.5 V | ±25 | ±100 | µV | |
| Input Offset Voltage Drift (dVOS/dT) | VS = ±18 V, VCM = (V+) – 3 V | ±0.25 | ±2.5 | µV/°C | |
| Unity Gain Bandwidth (GBW) | VS = ±18 V, G = 1 | 10 | MHz | ||
| Slew Rate (SR) | VS = ±18 V, G = 1, 10-V step | 20 | V/µs | ||
| Settling Time (ts) | VS = ±18 V, G = 1, 10-V step | 1.4 | µs | ||
| Output Voltage Swing | No load, Positive rail | 5 | 25 | mV | |
| Short-Circuit Current (ISC) | VS = ±2.25 V | ±65 | mA | ||
| Capacitive Load Drive (CLOAD) | Up to 1 nF | ||||
| Quiescent Current per Amplifier (IQ) | IO = 0 A, TA = 25°C | 1 | 1.3 | mA |
Key Features
- Low Offset Voltage: ±25 µV (typical), ±100 µV (maximum)
- Low Offset Voltage Drift: ±0.25 µV/°C (typical), ±2.5 µV/°C (maximum)
- Low Noise: 5.5 nV/√Hz at 1 kHz
- Rail-to-Rail Input/Output: Allows for full signal swing from the negative to the positive supply rail
- High Output Current: ±65 mA
- High Capacitive Load Drive: Up to 1 nF
- High Slew Rate: 20 V/µs
- Wide Operating Temperature Range: –40°C to +125°C
Applications
- Industrial Automation: For high-precision sensing and control in industrial environments.
- Medical Devices: In medical equipment requiring high accuracy and reliability.
- Aerospace and Defense: For applications needing robust performance under extreme conditions.
- Test and Measurement Equipment: For precision measurement and data acquisition systems.
- Automotive Systems: In automotive sensors and control systems.
Q & A
- What is the typical input offset voltage of the OPA197IDR?
The typical input offset voltage is ±25 µV. - What is the maximum slew rate of the OPA197IDR?
The maximum slew rate is 20 V/µs. - What is the capacitive load drive capability of the OPA197IDR?
The OPA197IDR can drive capacitive loads up to 1 nF. - What is the operating temperature range of the OPA197IDR?
The operating temperature range is –40°C to +125°C. - What are the package options available for the OPA197IDR?
The OPA197IDR is available in SOIC, SOT, and VSSOP packages. - What is the quiescent current per amplifier for the OPA197IDR?
The quiescent current per amplifier is typically 1.3 mA at 25°C. - Can the OPA197IDR handle high output currents?
Yes, the OPA197IDR can handle high output currents up to ±65 mA. - What is the unity gain bandwidth of the OPA197IDR?
The unity gain bandwidth is 10 MHz. - Is the OPA197IDR suitable for high-voltage applications?
Yes, the OPA197IDR is designed for high-voltage applications with a supply voltage range of ±2.25 V to ±18 V. - Does the OPA197IDR have thermal protection?
Yes, the OPA197IDR has thermal protection with a junction temperature limit of 140°C.
