AS333W5-7

The AS333 is a high precision operational amplifier designed with chopping stabilization technique which eliminates 1/f noise, and the cross over distortion presented in most RRIO amplifiers. The AS333, RRIO amplifier (rail-to-rail input and output), provides not only maximum output voltage swing capability but also an extended 100mV common-mode voltage beyond the supply rail. The device is fully specified to operate from 1.8V to 5.5V single supply, or ±0.9V and ±2.5V dual supply applications. The device features a good speed/power consumption ratio, offering 350kHz gain bandwidth while consuming only 17μA quiescent current. With the low input offset voltage 8μV and zero-drift offset voltage 0.02μV/°C , it is ideal for applications that require precision, especially for low power and high precision ones. The AS333 is available in SOT25 and SOT353 packages, and is specified for operation from -40°C to +125°C among all supply voltages. The wide temperature ranges and high ESD tolerance facilitate their use in harsh applications.

Applications

• Battery-powered instruments
• Handheld test equipment
• Medical instrumentation
• Low voltage current sensing
• Sensor signal conditioning
• Sensors interfaces CO detectors, pressure sensors, smoke alarms, pulse blood oximeters, glucose meters
• Thermistor Measurement
• Low-Side Current Monitor

Key features

• Low Input Offset Voltage: 8μV (typ)
• Zero Drift: 0.02μV/°C (typ)
• 0.01Hz to 10Hz Noise: 1.1μVPP
• Low Quiescent Current: 17μA (typ)
• Supply Voltage: 1.8V to 5.5V
• Rail-to-Rail Input and Output
• VCM: 100mV Beyond Supply Rail (VS = 1.8V to 5.5V)
• Unity Gain Stable up to 200pF C-Load
• Gain Bandwidth: 350kHz
• Slew Rate 0.12V/μs (typ)
• Operation Ambient Temperature Range: -40°C to +125°C
• ESD Protection JESD 22, 4000V HBM (A114)
• SOT25 and SOT353 Packages
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device