AD620ANZ

AD620 is a low cost, high accuracy instrumentation amplifier. It requires one external resistor to set gains of 1 to 10,000. The low input bias current of 1.0nA max is made possible with the use of Superϐeta processing in the input stage. It works well as a preamplifier due to its low input voltage noise of 9 nV/√Hz at 1KHz, 0.28μV p-p in the 0.1Hz to 10Hz band, and 0.1pA/√Hz input current noise. Also, this amplifier is well suited for multiplexed applications with its settling time of 15μs to 0.01%. It is widely used in application such as weigh scales, ECG and medical instrumentation, transducer interface, data acquisition systems, industrial process controls, battery-powered and portable equipment etc.

• Operating power supply range is ±2.3V to ±18V
• Higher performance than 3 op-amp IA designs
• Supply current range is 1.3mA max
• Input offset voltage is 30μV max
• Input offset drift is 0.3μV/°C max
• Input bias current is 0.5nA typ
• Common-mode rejection ratio is 110dB at (G = 10), (VCM = 0V to ± 10V)
• Slew rate is 1.2V/μs typ
• 120KHz bandwidth (G = 100)
• Operating temperature is −40°C to +85°C, package style is 8-lead PDIP

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