The ADA4522-2 is a dual, zero-drift, low noise, low power, rail-to-rail output amplifier optimized for total accuracy over time, temperature and voltage conditions.
The wide operating voltage and temperature ranges and the high open loop gain and very low DC and AC errors make it well suited for amplifying very small input signals and for accurately reproducing larger signals in a wide variety of applications.
The ADA4522-2 performance is guaranteed at 5.0 V, 30 V, and 55 V power supply voltages. It is an excellent selection for applications using single ended supplies of 5V, 10V, 12V and 30V or higher single supplies and dual supplies of ±2.5V, ±5V and ±15V. The ADA4522-2 utilizes on-chip filtering to achieve high immunity to electromagnetic interference.
The ADA4522-2 is fully specified over the extended industrial temperature range (−40°C to +125°C) and is available in an 8-lead MSOP and SOIC packages.
Applications
- LCR meter / megohmmeter front-end amplifier
- Load cell and bridge transducers
- Magnetic force balance scales
- High precision shunt current sensing
- Thermocouple/RTD sensors
- PLC input and output amplifier
Features and Benefits
- Low offset voltage:
5 μV maximum - Extremely low offset drift:
22 nV/°C maximum - Low voltage noise:
5.8 nV/√Hz typical
117 nV pp from 0.1 Hz to 10 Hz typical - Low input bias current: 50 pA typical
- Unity-gain crossover: 3 MHz
- Single-supply operation with input voltage range includes ground and rail-to-rail output
- Wide range of operating voltages:
Single-supply operation:
4.5 V to 55 V
Dual-supply operation:
±2.25 V to ±27.5V - Integrated EMI Filters
- Unity-gain stable
Fonte - Analog Devices, Inc.
