Overview
The OPA4187IDR from Texas Instruments is a high-precision, zero-drift, quad operational amplifier designed for low-power and high-accuracy applications. This device utilizes auto-zeroing techniques to achieve a low offset voltage of 1 µV and near zero drift over time and temperature. The OPA4187IDR is part of the OPAx187 series, which offers rail-to-rail output operation and a wide supply voltage range, making it versatile for various analog circuit designs.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±1 | ±15 | µV | |
| Offset Voltage Drift | ±0.001 | ±0.015 | µV/°C | |
| Power-Supply Rejection Ratio (PSRR) | ±0.01 | ±1 | µV/V | |
| Quiescent Current (IQ) | 100 | 145 | 150 | µA |
| Supply Voltage Range | ±2.25 V to ±18 V | V | ||
| Operating Temperature Range | -40°C to +125°C | °C | ||
| Package Types | 14-pin SOIC, 14-pin TSSOP, 16-pin WQFN |
Key Features
- Zero-drift operation with an offset voltage of 1 µV and near zero drift over time and temperature.
- Rail-to-rail output operation with an input common-mode range that includes the negative rail.
- Low quiescent current of 100 µA per amplifier.
- High-input impedance and low bias current of 100 pA (typical).
- EMI filtered inputs for improved noise immunity.
- Available in microsize packages including 14-pin SOIC, 14-pin TSSOP, and 16-pin WQFN.
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 OPA4187IDR?
The input offset voltage is ±1 µV with a maximum of ±15 µV.
- What is the offset voltage drift of the OPA4187IDR?
The offset voltage drift is ±0.001 µV/°C with a maximum of ±0.015 µV/°C.
- What is the quiescent current of the OPA4187IDR?
The quiescent current is 100 µA per amplifier, with a maximum of 150 µA.
- What is the supply voltage range of the OPA4187IDR?
The supply voltage range is ±2.25 V to ±18 V.
- What are the available package types for the OPA4187IDR?
The available package types are 14-pin SOIC, 14-pin TSSOP, and 16-pin WQFN.
- What is the operating temperature range of the OPA4187IDR?
The operating temperature range is -40°C to +125°C.
- Does the OPA4187IDR have EMI filtered inputs?
Yes, the OPA4187IDR has EMI filtered inputs for improved noise immunity.
- What are some common applications of the OPA4187IDR?
Common applications include analog input modules, mixed modules, flow and pressure transmitters, test and measurement equipment, and process analytics.
- Is the OPA4187IDR suitable for high-precision analog circuit designs?
Yes, the OPA4187IDR is designed for high-precision analog circuit designs due to its zero-drift operation and low offset voltage.
- Can the OPA4187IDR operate with both single and dual supplies?
Yes, the OPA4187IDR can operate with both single and dual supplies within the specified voltage range.
