Description

The ADA4522-1 / ADA4522-2 / ADA4522-4 are single/dual/quadchannel, zero drift op amps with low noise and power, groundsensing inputs, and rail-to-rail output, optimized for totalaccuracy over time, temperature, and voltage conditions. Thewide operating voltage and temperature ranges, as well as thehigh open-loop gain and very low dc and ac errors make thedevices well suited for amplifying very small input signals andfor accurately reproducing larger signals in a wide variety ofapplications.The ADA4522-1 / ADA4522-2 / ADA4522-4 performance isspecified at 5.0 V, 30 V, and 55 V power supply voltages. Thesedevices operate over the range of 4.5 V to 55 V, and are excellentfor applications using single-ended supplies of 5 V, 10 V, 12 V,and 30 V, or for applications using higher single supplies anddual supplies of ±2.5 V, ±5 V, and ±15 V. The ADA4522-1 /  ADA4522-2 / ADA4522-4 use on-chip filtering to achieve highimmunity to electromagnetic interference (EMI).The ADA4522-1 / ADA4522-2 / ADA4522-4 are fully specifiedover the extended industrial temperature range of −40°C to+125°C and are available in 8-lead MSOP, 8-lead SOIC, 14-leadSOIC, and 14-lead TSSOP packages.APPLICATIONS Inductance, capacitance, and resistance (LCR) meter/megohmmeter front-end amplifiers Load cell and bridge transducers Magnetic force balance scales High precision shunt current sensing Thermocouple/resistance temperature detector (RTD) sensors Programmable logic controller (PLC) input and output amplifiers