Overview
The Texas Instruments OPA4197IDR is a quad operational amplifier designed for high-performance applications. It belongs to the OPAx197 family, which includes the OPA197 and OPA2197, and is known for its outstanding DC precision and AC performance. This device features rail-to-rail input and output stages, low offset voltage, and high accuracy, making it suitable for a wide range of applications including medical equipment, industrial control systems, precision instrumentation, audio equipment, communication systems, and precision voltage reference circuits. The OPA4197IDR operates over a wide supply voltage range of ±2.25 V to ±18 V or +4.5 V to +36 V and is specified from –40°C to +125°C.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Number of Channels | 4 | - | - | - |
| Total Supply Voltage | - | ±2.25 V / +4.5 V | ±18 V / +36 V | V |
| Input Offset Voltage (VOS) | ±25 µV | - | ±100 µV | µV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.25 µV/°C | - | ±2.5 µV/°C | µV/°C |
| Unity Gain Bandwidth (GBW) | 10 MHz | - | - | MHz |
| Slew Rate (SR) | 20 V/µs | - | - | V/µs |
| Quiescent Current per Amplifier (IQ) | 1 mA | - | 1.3 mA | mA |
| Common-Mode Rejection Ratio (CMRR) | 120 dB | - | - | dB |
| Input Bias Current | ±5 pA | - | ±20 pA | pA |
| Operating Temperature Range | - | -40°C | +125°C | °C |
| Package Type | - | - | SOIC-14 | - |
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 Voltage Range: ±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: up to 1 nF
- High Output Current: ±65 mA
- Improved Linearity Performance and Reduced Noise Interference
- Simplified Circuit Design
Applications
- Medical Equipment
- Industrial Control Systems
- Precision Instrumentation
- Audio Equipment
- Communication Systems
- Precision Voltage Reference Circuits
Q & A
- What is the OPA4197IDR?
The OPA4197IDR is a quad operational amplifier from Texas Instruments, known for its high performance and precision in various applications.
- What is the supply voltage range for the OPA4197IDR?
The OPA4197IDR operates over a supply voltage range of ±2.25 V to ±18 V or +4.5 V to +36 V.
- What is the typical input offset voltage of the OPA4197IDR?
The typical input offset voltage is ±25 µV, with a maximum of ±100 µV.
- What is the slew rate of the OPA4197IDR?
The slew rate is 20 V/µs.
- What is the operating temperature range for the OPA4197IDR?
The operating temperature range is from –40°C to +125°C.
- What are the key applications of the OPA4197IDR?
The OPA4197IDR is used in medical equipment, industrial control systems, precision instrumentation, audio equipment, communication systems, and precision voltage reference circuits.
- What is the package type of the OPA4197IDR?
The package type is SOIC-14 (Small Outline Integrated Circuit - 14 pins).
- Does the OPA4197IDR have EMI and RFI filtering?
Yes, the OPA4197IDR has EMI- and RFI-filtered inputs.
- What is the capacitive load drive capability of the OPA4197IDR?
The OPA4197IDR can drive capacitive loads up to 1 nF.
- What is the typical quiescent current per amplifier for the OPA4197IDR?
The typical quiescent current per amplifier is 1 mA.
