Overview
The OPA197IDGKR is a high-performance operational amplifier from Texas Instruments, part of the OPAx197 family which includes the OPA197, OPA2197, and OPA4197. This device is known for its outstanding DC precision and AC performance, making it suitable for high-voltage, industrial applications. The OPA197IDGKR features rail-to-rail input and output, low offset voltage, and a wide bandwidth of 10 MHz. It is available in a VSSOP-8 package and operates over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = ±2.25 V, VCM = (V+) – 3 V | ±5 | ±100 | µV | |
| Offset Voltage Drift (dVOS/dT) | ±0.25 | µV/°C | |||
| Unity Gain Bandwidth (GBW) | 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 Current (ISC) | VS = ±2.25 V | ±65 | mA | ||
| Capacitive Load Drive (CLOAD) | 1 | nF | |||
| Quiescent Current (IQ) | IO = 0 A | 1.3 | mA | ||
| Operating Temperature Range | –40 | +125°C |
Key Features
- Low Offset Voltage: ±100 µV (Maximum)
- Low Offset Voltage Drift: ±2.5 µV/°C (Maximum)
- Low Noise: 5.5 nV/√Hz at 1 kHz
- High Common-Mode Rejection: 120 dB (Minimum)
- Low Bias Current: ±5 pA (Typical)
- Rail-to-Rail Input and Output
- Wide Bandwidth: 10-MHz GBW
- High Slew Rate: 20 V/µs
- Low Quiescent Current: 1 mA per Amplifier (Typical)
- Wide Supply: ±2.25 V to ±18 V, +4.5 V to +36 V
- EMI- and RFI-Filtered Inputs
- Differential Input Voltage Range to Supply Rail
- High Capacitive Load Drive Capability: 1 nF
Applications
The OPA197IDGKR is designed for high-voltage, industrial applications. It is suitable for use in various systems requiring high precision and robust performance, such as:
- Industrial control systems
- High-voltage instrumentation
- Medical devices
- Aerospace and defense systems
- Automotive systems
Q & A
- What is the input offset voltage of the OPA197IDGKR?
The input offset voltage of the OPA197IDGKR is ±100 µV (Maximum).
- What is the slew rate of the OPA197IDGKR?
The slew rate of the OPA197IDGKR is 20 V/µs.
- What is the operating temperature range of the OPA197IDGKR?
The operating temperature range of the OPA197IDGKR is –40°C to +125°C.
- What is the typical quiescent current of the OPA197IDGKR?
The typical quiescent current of the OPA197IDGKR is 1.3 mA per amplifier.
- What is the maximum output current of the OPA197IDGKR?
The maximum output current of the OPA197IDGKR is ±65 mA.
- Does the OPA197IDGKR have rail-to-rail input and output capabilities?
Yes, the OPA197IDGKR has rail-to-rail input and output capabilities.
- What is the common-mode rejection ratio (CMRR) of the OPA197IDGKR?
The CMRR of the OPA197IDGKR is 120 dB (Minimum).
- Can the OPA197IDGKR drive high capacitive loads?
Yes, the OPA197IDGKR can drive capacitive loads up to 1 nF.
- What are the available package types for the OPA197IDGKR?
The OPA197IDGKR is available in SOIC-8, SOT-5, and VSSOP-8 packages.
- Is the OPA197IDGKR EMI- and RFI-filtered?
Yes, the OPA197IDGKR has EMI- and RFI-filtered inputs.
