AS2333S-13

Overview

The AS2333S-13 is a dual CMOS operational amplifier from Diodes Incorporated, utilizing chopping stabilization to achieve ultra-low input offset voltage and near zero-drift performance. It operates on supply voltages ranging from 1.8V to 5.5V with a quiescent current of 12μA per amplifier. The device features rail-to-rail input and output capabilities, a gain-bandwidth product of 350kHz, and a slew rate of 0.12V/μs. Input bias current is specified at 200pA typical, while the common-mode rejection ratio reaches 120dB. It is housed in an SO-8 package and functions reliably within a temperature range of -40°C to +125°C.

Feature Summary

• Chopper-stabilized architecture eliminates 1/f noise and crossover distortion for high precision
• Rail-to-rail input and output operation extends signal dynamic range
• Ultra-low input offset voltage ensures minimal DC error
• Low quiescent current supports extended battery life in portable devices

Applications

• Battery-powered instruments
• Handheld test equipment
• Medical instrumentation
• Sensor signal conditioning
• Low-voltage current sensing

Procurement Notes

Verify that the ordering suffix '-13' corresponds to the SO-8 package configuration as documented in the manufacturer's ordering information. Confirm compliance with RoHS directives and ensure the component meets specific environmental requirements for your application design before finalizing procurement.

Selection Notes

Select this component when low-frequency precision and stability are critical due to its zero-drift characteristics. Ensure the required bandwidth does not exceed 350kHz and verify that the single-supply voltage range aligns with system power constraints. Consider the SO-8 package dimensions for PCB layout compatibility.

Part Context

This part belongs to the AS2333 family of micropower CMOS zero-drift operational amplifiers. It is designed specifically for applications requiring high accuracy at low frequencies without the noise penalties associated with conventional amplifiers. The S-13 designation identifies the specific SO-8 surface-mount packaging variant.

Replacement Considerations

An automotive-compliant version exists under the separate datasheet AS2333Q. Verify if automotive qualification is required for the target application environment before selecting alternative components.

FAQ

How does the AS2333 handle flicker noise?

The chopper-stabilized architecture effectively eliminates 1/f noise, making it suitable for accurate high-gain amplification at lower frequencies.

What is the input common-mode voltage range?

The common-mode voltage range extends 0.1V beyond the supply rails, allowing for sensing near ground or system VDD.