AD8220 Datasheet | Analog Devices

Data Sheet JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package AD8220 Features Low input currents 10 p A maximum input bias current (B grade) 0.6 p A maximum input offset current (B grade) High CMRR 100 d B CMRR (minimum), G = 10 (B grade) 80 d B CMRR (minimum) to 5 k Hz, G = 1 (B grade) Excellent ac specifications and low power 1.5 MHz bandwidth (G = 1) 14 n V/√Hz input noise (1 k Hz) 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 k V 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) Qualified for automotive applications APPLICATIONS Medical instrumentation Precision data acquisition Transducer interfaces 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 mon-mode rejection ratio (CMRR) of 86 d B at dc and a minimum CMRR of 80 d B at 5 k Hz for G = 1. Maximum input bias current is 10 p A and typically remains below 300 p A over the entire industrial temperature range. Despite the JFET inputs, the AD8220 typically has a noise corner of only 10 Hz. With the proliferation of mixed-signal processing, the number of power supplies required in each system has grown. The AD8220 is designed to alleviate this problem. The AD8220 can operate on a ±18 V dual supply, as well as on a single +5 V supply. Its railto-rail output stage maximizes dynamic range on the low voltage supplies mon in portable applications. Its ability to run on a single 5 V supply eliminates the need to use higher voltage, dual supplies. The AD8220 draws a maximum of 750 μA of quiescent current, making it ideal for battery powered devices. PIN CONFIGURATION - IN 1 RG 2 RG 3 +IN 4 8 +VS 7 VOUT 6 REF 5 - VS TOP VIEW (Not to...