Overview
The OPA333AIDCKR from Texas Instruments is a micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier. This device is part of the OPAx333 series, which utilizes a proprietary auto-calibration technique to provide very low offset voltage and near-zero drift over time and temperature. The OPA333AIDCKR is optimized for low-voltage, single-supply operation and is available in a compact 5-pin SOT-SC70 (DCK) package.
Key Specifications
| Parameter | Value |
|---|---|
| Offset Voltage | 10 µV (Maximum) |
| Zero Drift | 0.05 µV/°C (Maximum) |
| 0.01-Hz to 10-Hz Noise | 1.1 µV |
| Quiescent Current | 17 µA |
| Supply Voltage | 1.8 V to 5.5 V |
| Input/Output | Rail-to-Rail |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | SOT-SC70 (DCK), 5 pins |
Key Features
- Low offset voltage of 10 µV (maximum) and near-zero drift of 0.05 µV/°C (maximum)
- Low quiescent current of 17 µA
- Single-supply operation with a supply voltage range of 1.8 V to 5.5 V
- Rail-to-rail input and output
- High-impedance inputs with a common-mode range 100 mV beyond the rails
- Excellent common-mode rejection ratio (CMRR) without crossover associated with traditional complementary input stages
- Compact micro-size packages (SC70 and SOT23)
Applications
The OPA333AIDCKR is suitable for a variety of applications, including:
- Driving analog-to-digital converters (ADCs) without degradation of differential linearity
- Low-voltage, single-supply systems
- Precision measurement and sensing circuits
- Audio and instrumentation amplifiers
- Temperature sensing and control systems
Q & A
- What is the maximum offset voltage of the OPA333AIDCKR?
The maximum offset voltage is 10 µV. - What is the zero drift of the OPA333AIDCKR?
The zero drift is 0.05 µV/°C (maximum). - What is the quiescent current of the OPA333AIDCKR?
The quiescent current is 17 µA. - What is the supply voltage range for the OPA333AIDCKR?
The supply voltage range is from 1.8 V to 5.5 V. - Does the OPA333AIDCKR support rail-to-rail input/output?
Yes, it supports rail-to-rail input/output. - What are the available package types for the OPA333AIDCKR?
The available package types are SOT-SC70 (DCK) and SOT23, both with 5 pins. - What is the operating temperature range of the OPA333AIDCKR?
The operating temperature range is from -40°C to 125°C. - Is the OPA333AIDCKR suitable for driving ADCs?
Yes, it is optimized for driving ADCs without degradation of differential linearity. - What is the common-mode rejection ratio (CMRR) characteristic of the OPA333AIDCKR?
The OPA333AIDCKR offers excellent CMRR without the crossover associated with traditional complementary input stages. - Where can I find more detailed specifications and technical documentation for the OPA333AIDCKR?
You can find detailed specifications and technical documentation on the Texas Instruments website and other authorized distributors like Mouser Electronics and LCSC.
