Overview
The OPA2187ID from Texas Instruments is a high-precision, dual-channel operational amplifier that utilizes auto-zeroing techniques to achieve low offset voltage and near zero drift over time and temperature. This device is part of the OPAx187 series, known for its miniature size, low quiescent current, and high input impedance. It operates with a wide supply voltage range of ±2.25 V to ±18 V and supports both single and dual supply configurations. The OPA2187ID is available in an 8-pin SOIC package and is specified for operation from –40°C to +125°C, making it suitable for a variety of precision analog applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D), 8 pins |
| Operating Temperature Range | –40°C to +125°C |
| Offset Voltage | 10 µV (maximum) |
| Drift | 0.001 µV/°C |
| Noise | 15 nV/√Hz |
| PSRR | 160 dB |
| CMRR | 140 dB |
| AOL | 160 dB |
| Quiescent Current | 100 µA |
| Supply Voltage Range | ±2.25 V to ±18 V |
| Output Operation | Rail-to-rail |
| Input Common-Mode Range | Includes negative rail |
| Bias Current | 100 pA (typical) |
Key Features
- Low offset voltage: 10 µV (maximum)
- Zero drift: 0.001 µV/°C
- Low noise: 15 nV/√Hz
- High PSRR and CMRR: 160 dB and 140 dB respectively
- High AOL: 160 dB
- Low quiescent current: 100 µA
- Wide supply voltage range: ±2.25 V to ±18 V
- Rail-to-rail output operation
- Input includes negative rail
- Low bias current: 100 pA (typical)
- EMI filtered inputs
- Microsize packages
Applications
The OPA2187ID is suitable for a wide range of precision analog applications, including but not limited to:
- Precision instrumentation and measurement
- Medical devices requiring high accuracy
- Aerospace and defense systems
- Industrial control and automation
- High-end audio equipment
- Scientific instruments and data acquisition systems
Q & A
- What is the maximum offset voltage of the OPA2187ID?
The maximum offset voltage of the OPA2187ID is 10 µV. - What is the drift specification of the OPA2187ID?
The drift specification of the OPA2187ID is 0.001 µV/°C. - What is the noise level of the OPA2187ID?
The noise level of the OPA2187ID is 15 nV/√Hz. - What is the supply voltage range for the OPA2187ID?
The supply voltage range for the OPA2187ID is ±2.25 V to ±18 V. - Does the OPA2187ID support rail-to-rail output operation?
Yes, the OPA2187ID supports rail-to-rail output operation. - What is the typical bias current of the OPA2187ID?
The typical bias current of the OPA2187ID is 100 pA. - What are the package options for the OPA2187ID?
The OPA2187ID is available in an 8-pin SOIC package. - What is the operating temperature range for the OPA2187ID?
The operating temperature range for the OPA2187ID is –40°C to +125°C. - Is the OPA2187ID EMI filtered?
Yes, the OPA2187ID has EMI filtered inputs. - What are some typical applications for the OPA2187ID?
The OPA2187ID is typically used in precision instrumentation, medical devices, aerospace and defense systems, industrial control, high-end audio equipment, and scientific instruments.
