Overview
The OPA2197ID, manufactured by Texas Instruments, is a dual 36-V precision operational amplifier known for its outstanding DC precision and AC performance. This device is part of the OPAx197 family, which includes the OPA197 and OPA4197. The OPA2197ID features rail-to-rail input and output, low offset voltage, and high slew rate, making it suitable for high-voltage industrial applications. It is available in standard packages such as SOIC and VSSOP, and is specified to operate over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VS) | Dual supply | ±20 | ±20 | V | |
| Single supply | 40 | V | |||
| 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 | µV/°C | ||
| Unity Gain Bandwidth (GBW) | VS = ±18 V, G = 1 | 10 | 10 | MHz | |
| Slew Rate (SR) | VS = ±18 V, G = 1, 10-V step | 20 | 20 | V/µs | |
| Settling Time (ts) | VS = ±18 V, G = 1, 10-V step to 0.01% | 1.4 | µs | ||
| Quiescent Current per Amplifier (IQ) | IO = 0 A | 1 | 1.3 | 1.5 | mA |
| Short-Circuit Current (ISC) | VS = ±2.25 V | ±65 | mA | ||
| Capacitive Load Drive (CLOAD) | Up to 1 nF |
Key Features
- Rail-to-rail input and output
- Low input offset voltage (±25 µV typical) and low offset drift (±0.25 µV/°C typical)
- High slew rate (20 V/µs) and unity gain bandwidth (10 MHz)
- High output current (±65 mA) and capacitive load drive (up to 1 nF)
- Differential input-voltage range to the supply rail
- Operates over a wide temperature range (–40°C to +125°C)
- Available in SOIC and VSSOP packages
Applications
The OPA2197ID is designed for high-voltage industrial applications, including but not limited to:
- High-voltage data acquisition systems
- Multiplexed data-acquisition systems
- Industrial control systems
- Medical devices requiring high precision and reliability
- Aerospace and defense applications where high performance and stability are crucial
Q & A
- What is the input offset voltage of the OPA2197ID?
The input offset voltage of the OPA2197ID is typically ±25 µV, with a maximum of ±100 µV under specified conditions. - What is the slew rate of the OPA2197ID?
The slew rate of the OPA2197ID is 20 V/µs for a 10-V step. - What is the unity gain bandwidth of the OPA2197ID?
The unity gain bandwidth of the OPA2197ID is 10 MHz. - What is the maximum output current of the OPA2197ID?
The maximum output current of the OPA2197ID is ±65 mA. - What is the capacitive load drive capability of the OPA2197ID?
The OPA2197ID can drive capacitive loads up to 1 nF. - What are the operating temperature ranges for the OPA2197ID?
The OPA2197ID operates over a temperature range of –40°C to +125°C. - In what packages is the OPA2197ID available?
The OPA2197ID is available in SOIC and VSSOP packages. - What are some typical applications of the OPA2197ID?
The OPA2197ID is typically used in high-voltage data acquisition systems, multiplexed data-acquisition systems, industrial control systems, and medical devices. - What is the quiescent current per amplifier for the OPA2197ID?
The quiescent current per amplifier for the OPA2197ID is typically 1.3 mA, with a maximum of 1.5 mA over the operating temperature range. - Does the OPA2197ID have thermal protection?
Yes, the OPA2197ID has thermal protection, with a junction temperature limit of 140°C.
