AD8420 PDF Datasheet
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Description
This is Rail-to-Rail Output Instrumentation Amplifier. Data Sheet
FEATURES
Maximum supply current: 90 μA Minimum CMRR: 100 dB Drives heavy capacitive loads: ~700 pF Rail-to-rail output Input voltage range goes below ground Gain set with 2 external resistors
Can achieve low gain drift at any gain Very wide power supply range
Single supply: 2.7 V to 36 V Dual supply: ±2.7 V to ±18 V Bandwidth (G = 100): 2.5 kH- Input voltage noise: 55 nV, √H- High dc precision Maximum offset voltage: 125 μV Maximum offset drift: 1 μV, °C Maximum differential input voltage: ±1 V 8-lead MSOP package
APPLICATIONS
Bridge amplifiers Pressure measurement Medical instrumentation Portable data acquisition Multichannel systems
Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier
AD8420
PIN CONFIGURATION
AD8420
NC 1 +IN 2 IN 3 VS 4
+
+
TOP VIEW (Not to Scale)
8 VOUT 7 FB 6 REF 5 +VS
Figure 1.
09945-001
Table 1. Instrumentation Amplifiers by Category1
General Purpose
Zero Drift
Military Low Grade Power
AD8221, AD8222 AD8231
AD620 AD842.