●Product Details
●The AD8641/AD8642/AD8643 are low power, precision JFET input amplifier featuring low input bias current and rail-to-rail output. The AD8641 family provides high source impedance, low bias current and low supply current which are key to applications such as ECG/EKG monitors, sleep monitoring, and blood analyzing instruments. The ability to swing rail-to-rail at the output enables designers to buffer wide output swing devices in single supply systems.
●The AD8641 family is also ideal for applications utilizing multi-channel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.
●The AD8641 family is fully specified over the extended industrial temperature range of –40° to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC packages. The AD8643 is available in 16-lead 3mm x 3mm LFCSP and 14-lead SOIC packages.
●Applications
● Medical Instrumentation
● Photodiode Amplifiers
● Precision Current Sensing
● Battery-powered Instruments
● Precision Filters
●### Features and Benefits
● Low Supply Current/Amp: 250 µA max
● Very Low Input Bias Current: 1 pA max
● Low Offset Voltage: 750 µV max
● Single-supply Operation: 5 V to 26 V
● Dual-supply Operation: ±2.5 V to ±13 V
● Rail-to-rail Output
● Unity Gain Stable
● 3mm x 3mm LFCSP and SOIC
●AD8643-EP supports defense and aerospace applications (AQEC standard)
● Download AD8643-EP data sheet (pdf)
● 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
● V62/12653 DSCC Drawing Number
Part 3D Model
