HXY MOSFET AD8572-HXY

This amplifier series employs a patented fast-settling chopper stabilization technique for input offset voltage correction, achieving ultra-low offset and drift. This approach continuously measures and compensates for input offset, eliminating drift over time and temperature as well as 1/f noise. This design breakthrough enables the devices to achieve a 1.5 MHz gain-bandwidth product and a high slew rate of 1.2 V/μs while consuming only 125 μA of supply current. These devices are unity-gain stable and feature excellent power supply rejection ratio and common-mode rejection ratio. This series is ideally suited for applications requiring precision amplification of low-level signals where error sources cannot be tolerated, even when high bandwidth and fast transient response are needed. Rail-to-rail input and output swing makes both high-side and low-side sensing straightforward. The series operates from a single supply as low as 1.8 V, making it suitable for dual-battery applications. These op-amps feature enhanced EMI protection to minimize interference from external sources and offer high ESD protection. All models are specified for operation over the extended industrial temperature range of -40°C to +125°C.

• Maximum offset voltage ±8 μV, maximum offset drift ±40 nV/°C
• Minimum open-loop gain 112 dB
• Minimum power supply rejection ratio 112 dB
• Minimum common-mode rejection ratio 112 dB
• Typical input voltage noise 0.45 μV_PP
• Bandwidth 1.5 MHz, slew rate 1.2 V/μs
• Settling time to 0.1%: 1.2 μs
• Overload recovery time to 0.1%: 35 μs
• Micropower, 125 μA per amplifier, wide supply voltage range 1.8 V to 5.5 V
• Operating temperature range: -40°C to +125°C

• Precision current sensing
• Resistance temperature detectors
• Temperature, position, and pressure sensors
• Medical equipment
• Electronic scales