Overview
The OPA2333AIDRG4 is a dual CMOS operational amplifier from Texas Instruments, part of the OPAx333 series. These amplifiers utilize a proprietary auto-calibration technique to provide very low offset voltage and near-zero drift over time and temperature. This makes them highly suitable for applications requiring high precision and low power consumption. The OPA2333 is optimized for low-voltage, single-supply operation and is available in various compact packages such as VSSOP, SOIC, and VSON, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Offset Voltage | 10 µV (Maximum) |
| Offset Voltage Drift | 0.05 µV/°C (Maximum) |
| 0.1-Hz to 10-Hz Noise | 1.1 µV |
| Quiescent Current | 17 µA |
| Supply Voltage Range | 1.8 V to 5.5 V (±0.9 V to ±2.75 V) |
| Operating Temperature Range | -40°C to 125°C |
| Input Common-Mode Voltage Range | Extends 0.1 V beyond the supply rails |
| Output Stage | Rail-to-Rail |
| Package Types | VSSOP, SOIC, VSON |
Key Features
- Low Offset Voltage: 10 µV (Maximum)
- Zero Drift: 0.05 µV/°C (Maximum)
- Low Noise: 1.1 µV (0.1-Hz to 10-Hz)
- Low Quiescent Current: 17 µA
- Single-Supply Operation: 1.8 V to 5.5 V
- Rail-to-Rail Input/Output
- High-Impedance Inputs with Common-Mode Range Extending Beyond Supply Rails
- Compact Packages: VSSOP, SOIC, VSON
Applications
- Precision DC Control Systems: The low offset voltage and drift make these amplifiers suitable for precise DC control applications.
- Analog-to-Digital Converters (ADCs): Excellent CMRR without crossover issues, making them ideal for driving ADCs without degrading differential linearity.
- Battery Management Systems (BMS): Used in sensing battery voltage in BMS systems, including those for hydrogen energy batteries.
- Handheld Test Equipment: Compact packages and low power consumption make them suitable for handheld devices.
- General-Purpose Amplification: Suitable for a wide range of applications requiring high precision and low power consumption.
Q & A
- What is the maximum offset voltage of the OPA2333?
The maximum offset voltage of the OPA2333 is 10 µV.
- What is the drift over temperature for the OPA2333?
The drift over temperature for the OPA2333 is 0.05 µV/°C (Maximum).
- What is the quiescent current of the OPA2333?
The quiescent current of the OPA2333 is 17 µA.
- What is the supply voltage range for the OPA2333?
The supply voltage range for the OPA2333 is 1.8 V to 5.5 V (±0.9 V to ±2.75 V).
- What are the available package types for the OPA2333?
The OPA2333 is available in VSSOP, SOIC, and VSON packages.
- Is the OPA2333 suitable for high-precision DC control applications?
Yes, the OPA2333 is highly suitable for high-precision DC control applications due to its low offset voltage and drift.
- Can the OPA2333 be used in battery management systems?
Yes, the OPA2333 can be used in battery management systems, including those for hydrogen energy batteries.
- How does the OPA2333 handle input common-mode voltage range?
The OPA2333 has an input common-mode voltage range that extends 0.1 V beyond the supply rails.
- What precautions should be taken in the layout and design of circuits using the OPA2333?
Precautions include using low thermoelectric-coefficient conditions, thermally isolating components from power supplies, and shielding the operational amplifier and input circuitry from air currents.
- Is the OPA2333 unity-gain stable?
Yes, the OPA2333 is unity-gain stable and free from unexpected output phase reversal.
