Overview
The OPA2182IDR, produced by Texas Instruments, is a high-precision operational amplifier that belongs to the OPAx182 family. This device is known for its ultra-low noise, zero-drift, and fast-settling characteristics, making it ideal for applications requiring high accuracy and stability. The OPA2182IDR features a unique MUX-friendly architecture and a controlled start-up system, ensuring robust performance in various operational conditions.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±0.45 µV | - | ±4 µV | µV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.003 µV/°C | - | ±0.012 µV/°C | µV/°C |
| Power-Supply Rejection Ratio (PSRR) | - | - | ±0.05 µV/V | µV/V |
| Input Bias Current (IB) | ±50 pA | - | ±350 pA | pA |
| Input Voltage Noise Density (en) | 5.7 nV/√Hz | - | - | nV/√Hz |
| Gain-Bandwidth Product (GBW) | 5 MHz | - | - | MHz |
| Slew Rate | 10 V/µs | - | - | V/µs |
| Settling Time (to 0.01%) | 1.7 µs | - | - | µs |
| Quiescent Current (IQ) | 0.85 mA | - | 1 mA | mA |
| Supply Voltage Range | ±2.25 V to ±18 V, 4.5 V to 36 V | - | - | V |
Key Features
- Ultra-high precision: Zero-drift and ultra-low offset voltage (maximum 4 µV) ensure high accuracy.
- Excellent DC precision: High common-mode rejection ratio (CMRR) of up to 168 dB and open-loop gain of 170 dB.
- Low noise: Low input voltage noise density of 5.7 nV/√Hz and low 0.1-Hz to 10-Hz noise of 0.12 µVPP.
- Excellent dynamic performance: High gain-bandwidth product of 5 MHz and fast slew rate of 10 V/µs.
- Robust design: MUX-friendly inputs, RFI and EMI filtered inputs, and rail-to-rail output.
- Wide supply voltage range: Operates from ±2.25 V to ±18 V and 4.5 V to 36 V.
Applications
- Battery test and monitoring systems.
- DC power supplies, AC sources, and electronic loads.
- Data acquisition (DAQ) systems.
- Semiconductor testing equipment.
- Weigh scales and other precision measurement instruments.
- Analog input modules and flow transmitters.
Q & A
- What is the input offset voltage of the OPA2182IDR?
The input offset voltage is typically ±0.45 µV, with a maximum of ±4 µV.
- What is the input offset voltage drift of the OPA2182IDR?
The input offset voltage drift is typically ±0.003 µV/°C.
- What is the gain-bandwidth product of the OPA2182IDR?
The gain-bandwidth product is 5 MHz.
- What is the slew rate of the OPA2182IDR?
The slew rate is 10 V/µs.
- What is the quiescent current of the OPA2182IDR?
The quiescent current is typically 0.85 mA.
- What is the supply voltage range of the OPA2182IDR?
The supply voltage range is from ±2.25 V to ±18 V and from 4.5 V to 36 V.
- Is the OPA2182IDR suitable for high-precision applications?
Yes, it is highly suitable due to its zero-drift, ultra-low offset voltage, and high CMRR.
- What types of noise does the OPA2182IDR exhibit?
The OPA2182IDR exhibits low input voltage noise density of 5.7 nV/√Hz and low 0.1-Hz to 10-Hz noise of 0.12 µVPP.
- Can the OPA2182IDR handle capacitive loads?
Yes, it can drive capacitive loads; refer to the typical characteristics section for specific details.
- What are some common applications of the OPA2182IDR?
Common applications include battery testing, DC power supplies, data acquisition systems, semiconductor testing, and precision measurement instruments.
