Datasheet AD8643-EP (Analog Devices)

Low Power, Rail-to-Rail, Output Precision JFET Amplifier AD8643-EP FEATURES PIN CONFIGURATION Low supply current: 250 μA maximum OUT A 1 14 OUT D Very low input bias current: 1 pA maximum –IN A 2 13 –IN D Low offset voltage: 750 μV maximum +IN A 3 12 +IN D AD8643-EP Single-supply operation: 5 V to 26 V V+ 4 TOP VIEW 11 V– Dual-supply operation: ±2.5 V to ±13 V (Not to Scale) +IN B 5 10 +IN C Rail-to-rail output –IN B 6 9 –IN C Unity-gain stable
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OUT B 7 8 OUT C No phase reversal
590- 09 Figure 1. 14-Lead SOIC (R-14)
ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range (−55°C to +125°C) Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Enhanced product change notification Qualification data available on request APPLICATIONS Line-/battery-powered instruments Photodiode amplifiers Precision current sensing Precision filters Portable audio GENERAL DESCRIPTION
The AD8643-EP is a low power, precision JFET input amplifier The AD8643-EP is suitable for applications using multichannel featuring extremely low input bias current and rail-to-rail output. boards that require low power to manage heat. Other applications The ability to swing nearly rail-to-rail at the input and rail-to-rail at include photodiodes and battery management. the output enables designers to buffer CMOS digital-to-analog The AD8643-EP is fully specified over the military temperature converters (DACs), ASICs, and other wide output swing devices range of −55°C to +125°C. This device is available in a 14-lead SOIC. in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF. Additional applications information is available in the AD8643 data sheet.
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Document Outline FEATURES ENHANCED PRODUCT FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE