Overview
The OPA2187IDGKR is a dual-channel, zero-drift operational amplifier produced by Texas Instruments. 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 OPA2187IDGKR is known for its high precision, low quiescent current, and rail-to-rail output operation, making it suitable for a wide range of applications requiring high accuracy and stability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±1 | - | ±15 | μV |
| Offset Voltage Drift | ±0.001 | - | ±0.015 | μV/°C |
| Power-Supply Rejection Ratio (PSRR) | - | - | 160 | dB |
| Common-Mode Rejection Ratio (CMRR) | - | - | 140 | dB |
| Quiescent Current (IQ) | 100 | - | 150 | μA |
| Supply Voltage Range | ±2.25 V to ±18 V | - | - | V |
| Input Bias Current | - | 100 pA | - | pA |
| Operating Temperature Range | -40°C | - | +125°C | °C |
| Package Type | - | - | VSSOP-8 | - |
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 (VSSOP-8, SOIC-8)
- Wide supply voltage range: ±2.25 V to ±18 V
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 OPA2187IDGKR?
The input offset voltage is ±1 μV to ±15 μV.
- What is the offset voltage drift of the OPA2187IDGKR?
The offset voltage drift is ±0.001 μV/°C to ±0.015 μV/°C.
- What is the power-supply rejection ratio (PSRR) of the OPA2187IDGKR?
The PSRR is 160 dB.
- What is the common-mode rejection ratio (CMRR) of the OPA2187IDGKR?
The CMRR is 140 dB.
- What is the quiescent current of the OPA2187IDGKR?
The quiescent current is 100 μA to 150 μA.
- What is the supply voltage range of the OPA2187IDGKR?
The supply voltage range is ±2.25 V to ±18 V.
- What is the input bias current of the OPA2187IDGKR?
The input bias current is typically 100 pA.
- What are the operating temperature ranges for the OPA2187IDGKR?
The operating temperature range is -40°C to +125°C.
- In what package types is the OPA2187IDGKR available?
The OPA2187IDGKR is available in VSSOP-8 and SOIC-8 packages.
- What are some common applications of the OPA2187IDGKR?
Common applications include analog input modules, mixed modules, flow and pressure transmitters, test and measurement equipment, and process analytics.
