Overview
The OPA2187IDR from Texas Instruments is a high-precision, dual-channel operational amplifier that features zero-drift and low power consumption. This device is part of the OPAx187 series, which utilizes auto-zeroing techniques to provide low offset voltage and near zero drift over time and temperature. The OPA2187IDR is designed for applications requiring high accuracy and stability, making it suitable for a variety of precision analog circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | ±1 (typ), ±15 (max) | µV |
| Offset Drift | ±0.001 (typ), ±0.015 (max) | µV/°C |
| Power Supply Rejection Ratio (PSRR) | 160 | dB |
| Common Mode Rejection Ratio (CMRR) | 140 | dB |
| Quiescent Current (IQ) | 100 (typ), 145 (max) | µA |
| Supply Voltage Range | ±2.25 V to ±18 V (4.5 V to 36 V) | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Bandwidth | 550 kHz | kHz |
| Number of Channels | 2 | |
| Package Type | SOIC (8-pin), VSSOP (8-pin) |
Key Features
- Low offset voltage: 10 µV (maximum)
- Zero drift: 0.001 µV/°C
- Low noise: 15 nV/√Hz
- Rail-to-rail output operation
- Input includes negative rail
- Low bias current: 100 pA (typical)
- EMI filtered inputs
- Microsize packages available
Applications
- Analog input modules
- Mixed modules (AI, AO, DI, DO)
- Flow transmitters
- Pressure transmitters
- Test and measurement equipment
- Semiconductor test and manufacturing
- Process analytics (pH, gas, concentration, force, and humidity)
Q & A
- What is the input offset voltage of the OPA2187IDR?
The input offset voltage is ±1 µV (typical) and ±15 µV (maximum).
- What is the offset drift of the OPA2187IDR?
The offset drift is ±0.001 µV/°C (typical) and ±0.015 µV/°C (maximum).
- What is the power supply rejection ratio (PSRR) of the OPA2187IDR?
The PSRR is 160 dB.
- What is the common mode rejection ratio (CMRR) of the OPA2187IDR?
The CMRR is 140 dB.
- What is the quiescent current of the OPA2187IDR?
The quiescent current is 100 µA (typical) and 145 µA (maximum).
- What is the supply voltage range for the OPA2187IDR?
The supply voltage range is ±2.25 V to ±18 V (4.5 V to 36 V).
- What is the operating temperature range for the OPA2187IDR?
The operating temperature range is –40°C to +125°C.
- What is the bandwidth of the OPA2187IDR?
The bandwidth is 550 kHz.
- How many channels does the OPA2187IDR have?
The OPA2187IDR has 2 channels.
- What are the available package types for the OPA2187IDR?
The available package types are SOIC (8-pin) and VSSOP (8-pin).
