Overview
The OPA2333AIDGKR from Texas Instruments is a high-precision, micropower, zero-drift CMOS operational amplifier. This dual-channel operational amplifier is designed for low-voltage, single-supply operation and offers excellent DC accuracy and stability. The OPA2333AIDGKR is part of the OPAx333 family, which is known for its ultra-low offset voltage and near-zero drift over time and temperature, making it ideal for precise DC control and analog signal processing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 1.8 V to 5.5 V (±0.9 V to ±2.75 V) | V |
| Quiescent Current | 17 μA | A |
| Bandwidth | 350 kHz | Hz |
| Offset Voltage | 2 μV | V |
| Input Bias Current | 70 pA | A |
| Common-Mode Range | 0.1 V beyond the supply rails | V |
| Output Swing | Rail-to-rail, within 50 mV of the rails | V |
| Package | MSOP-8, VSSOP8 | - |
Key Features
- Zero-drift architecture providing ultra-low offset voltage and near-zero drift over time and temperature.
- High-impedance inputs with a common-mode range extending 0.1 V beyond the supply rails.
- Rail-to-rail input and output stages, allowing for full output swing within 50 mV of the supply rails.
- Single or dual supply operation from 1.8 V to 5.5 V.
- Unity-gain stable and free from unexpected output phase reversal.
- Microsize packages (SC70, SOT23, MSOP-8, VSSOP8) for compact designs.
- Low quiescent current of 17 μA, making it suitable for battery-powered instruments.
Applications
- Transducers and sensor interfaces.
- Temperature measurements and monitoring systems.
- Electronic scales and precision weighing systems.
- Medical instrumentation, including patient monitoring and diagnostic equipment.
- Battery-powered instruments and portable devices.
- Analog-to-digital converter (ADC) driving without degradation of differential linearity.
Q & A
- What is the supply voltage range for the OPA2333AIDGKR?
The OPA2333AIDGKR operates over a supply voltage range of 1.8 V to 5.5 V (±0.9 V to ±2.75 V).
- What is the quiescent current of the OPA2333AIDGKR?
The quiescent current is 17 μA.
- What is the bandwidth of the OPA2333AIDGKR?
The bandwidth is 350 kHz.
- What is the offset voltage of the OPA2333AIDGKR?
The offset voltage is 2 μV.
- Does the OPA2333AIDGKR support rail-to-rail input and output?
Yes, it supports rail-to-rail input and output stages, allowing for full output swing within 50 mV of the supply rails.
- What are the common applications of the OPA2333AIDGKR?
Common applications include transducers, temperature measurements, electronic scales, medical instrumentation, and battery-powered instruments.
- What package options are available for the OPA2333AIDGKR?
The OPA2333AIDGKR is available in MSOP-8 and VSSOP8 packages.
- Is the OPA2333AIDGKR suitable for high-precision DC control?
Yes, it is suitable for high-precision DC control due to its ultra-low offset voltage and near-zero drift over time and temperature.
- How does the OPA2333AIDGKR handle input bias current?
The input bias current is very low, at 70 pA.
- What precautions should be taken when designing with the OPA2333AIDGKR to minimize thermoelectric effects?
Precautions include using low thermoelectric-coefficient conditions, thermally isolating components from power supplies, and shielding the operational amplifier and input circuitry from air currents.
