Overview
The OPA2333AIDGKTG4 is a dual-channel, micropower, zero-drift CMOS operational amplifier produced by Texas Instruments. This device is part of the OPAx333 family, which is known for its high precision, low power consumption, and robust performance. The OPA2333AIDGKTG4 is optimized for low-voltage, single-supply operation and features a proprietary auto-calibration technique that provides very low offset voltage and near-zero drift over time and temperature. It is available in an 8-pin VSSOP (DGK) package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VSSOP (DGK) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range | 1.8 to 5.5 | V |
| Quiescent Current per Amplifier | 17 to 25 | µA |
| Offset Voltage | 10 | µV (Maximum) |
| Drift | 0.05 | µV/°C (Maximum) |
| Input Common-Mode Range | 100 mV beyond the rails | - |
| Output Voltage Swing | Within 50 mV of the rails | - |
| Slew Rate | 0.16 | V/μs |
| Short-Circuit Current | ±5 | mA |
Key Features
- Low Offset Voltage: Maximum of 10 µV, ensuring high precision in applications.
- Zero Drift: Maximum drift of 0.05 µV/°C, providing stability over temperature changes.
- Low Noise: 0.01-Hz to 10-Hz noise of 1.1 µV, suitable for sensitive signal processing.
- Low Quiescent Current: 17 µA per amplifier, making it energy-efficient.
- Single-Supply Operation: Operates from 1.8 V to 5.5 V, supporting a wide range of supply voltages.
- Rail-to-Rail Input/Output: Input common-mode range extends 100 mV beyond the supply rails, and output swings within 50 mV of the rails.
- High-Impedance Inputs: Reduces loading on the signal source.
- Compact Packages: Available in micro-size packages such as VSSOP (DGK), SOIC, and VSON.
Applications
The OPA2333AIDGKTG4 is suitable for a variety of applications due to its high precision, low power consumption, and robust performance. Some key applications include:
- Analog-to-Digital Converters (ADCs): Drives ADCs without degradation of differential linearity.
- ECG and Biomedical Equipment: Low noise and high precision make it ideal for biomedical signal processing.
- Industrial Automation: Used in control systems and sensors due to its stability and low drift.
- Portable Electronics: Low power consumption makes it suitable for battery-powered devices.
- Precision Instrumentation: Ideal for applications requiring high accuracy and stability.
Q & A
- What is the operating temperature range of the OPA2333AIDGKTG4?
The operating temperature range is from -40°C to 125°C.
- What is the maximum offset voltage of the OPA2333AIDGKTG4?
The maximum offset voltage is 10 µV.
- What is the drift specification of the OPA2333AIDGKTG4?
The maximum drift is 0.05 µV/°C.
- What is the quiescent current per amplifier for the OPA2333AIDGKTG4?
The quiescent current per amplifier is between 17 µA and 25 µA.
- What is the supply voltage range for the OPA2333AIDGKTG4?
The supply voltage range is from 1.8 V to 5.5 V.
- Does the OPA2333AIDGKTG4 support rail-to-rail input and output?
Yes, it supports rail-to-rail input and output.
- What are the key applications for the OPA2333AIDGKTG4?
Key applications include ADCs, biomedical equipment, industrial automation, portable electronics, and precision instrumentation.
- What is the slew rate of the OPA2333AIDGKTG4?
The slew rate is 0.16 V/μs.
- What is the short-circuit current of the OPA2333AIDGKTG4?
The short-circuit current is ±5 mA.
- How should the input voltage be managed to avoid excessive current flow?
Input voltages should be limited to avoid exceeding the power supplies by more than 0.5 V, and an input current-limiting resistor may be necessary.
