ADA4522-2ARMZ-R7

ADA4522-2 is dual channel, zero drift op amp with low noise and power, ground sensing inputs, and rail-to-rail output, optimized for total accuracy over time, temperature, and voltage conditions. The wide operating voltage and temperature ranges, as well as the high open-loop gain and very low DC and AC errors make the devices well suited for amplifying very small input signals and for accurately reproducing larger signals in a wide variety of applications. This device operates over the range of 4.5V to 55V and is excellent for applications using single-ended supplies of 5V, 10V, 12V and 30V, or for applications using higher single supplies and dual supplies of ±2.5V, ±5V, and ±15V. Applications includes 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/RTD sensors and programmable logic controller input and output amplifiers.

• On-chip filtering to achieve high immunity to electromagnetic interference (EMI)
• Single-supply operation: input voltage range includes ground and rail-to-rail output
• Integrated EMI filters, unity-gain stable
• Input offset voltage of 5µV maximum (VSY = 5V, VCM = VSY/2 V, TA = 25°C)
• Input offset voltage drift of 15nV/°C maximum (VSY = 5V, VCM = VSY/2 V, TA = 25°C)
• Input bias current of 150pA max/input offset current of 250pA max (VSY=5V, VCM = VSY/2 V, TA=25°C)
• 6.5MHz typical −3dB closed-loop bandwidth (VIN=10mV p-p, RL=10Kohm, CL=50pF, AV=1, VSY=5V, TA=25°C)
• Slew rate of 1.4V/µs typical at RL = 10Kohm, CL = 50pF, AV = 1, VS = 5V, VCM = 2.5V, TA = 25°C
• Typical CMRR of 155dB (VCM = 0 to 3.5V, VSY = 5V, TA = 25°C)
• 8-lead MSOP package, -40°C to +125°C temperature range

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