GENERAL DESCRIPTION
The AD8220 is the first single-supply JFET input instrumentation amplifier available in an MSOP package. Designed to meet the needs of high performance, portable instrumentation, the AD8220 has a minimum common-mode rejection ratio (CMRR) of 86 dB at dc and a minimum CMRR of 80 dB at 5 kHz for G = 1. Maximum input bias current is 10 pA and typically remains below 300 pA over the entire industrial temperature range. Despite the JFET inputs, the AD8220 typically has a noise corner of only 10 Hz.

FEATURES
Low input currents
   10 pA maximum input bias current (B grade)
   0.6 pA maximum input offset current (B grade)
High CMRR
   100 dB CMRR (minimum), G = 10 (B grade)
   80 dB CMRR (minimum) to 5 kHz, G = 1 (B grade)
Excellent ac specifications and low power
   1.5 MHz bandwidth (G = 1)
   14 nV/√Hz input noise (1 kHz)
   Slew rate 2 V/μs
   750 μA quiescent supply current (maximum) Versatile
   MSOP package
   Rail-to-rail output
   Input voltage range to below negative supply rail
   4 kV ESD protection
   4.5 V to 36 V single supply
   ±2.25 V to ±18 V dual supply
   Gain set with single resistor (G = 1 to 1000)

APPLICATIONS
  Medical instrumentation
  Precision data acquisition
  Transducer interface