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MFG:ADI D/C:09
Part Number: AD8642
MFG: ADI
D/C: 09
Description: The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input ...
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AD8642
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DataSheet
General Description
AD8642 General Description
The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF.
The AD8641/AD8642/AD8643 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.
The AD8641/AD8642/AD8643 are fully specified over the extended industrial temperature range of 40 to +125. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC lead-free packages. The AD8643 is available in 14-lead SOIC and 16-lead, 3 mm * 3 mm, LFCSP lead-free packages.
AD8642 Maximum Ratings
Supply Voltage........................................27.3 V
Input Voltage.........................................VS to VS+
Differential Input Voltage......................±Supply Voltage
Output Short-Circuit Duration................Indefinite
Storage Temperature Range
KS-5, R-8, RM-8, R-14, CP-16 Packages.......65 to +150
Operating Temperature Range.....................40 to +125
Junction Temperature Range
KS-5, R-8, RM-8, R-14, CP-16 Packages.........65 to +150
Lead Temperature Range (Soldering, 60 sec)......300
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
AD8642 Features
Low supply current: 250 A max
Very low input bias current: 1 pA max
Low offset voltage: 750 V 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
No phase reversal
SC70 package
Very low input bias current: 1 pA max
Low offset voltage: 750 V 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
No phase reversal
SC70 package
AD8642 Typical Application
Line-/battery-powered instruments
Photodiode amplifiers
Precision current sensing
Medical instrumentation
Industrial controls
Precision filters
Portable audio
Photodiode amplifiers
Precision current sensing
Medical instrumentation
Industrial controls
Precision filters
Portable audio
AD8642 Connection Diagram
AD8642
PDF/DataSheet Download
- Datasheet: AD8642
- File Size: 979454 KB
- Manufacturer: AD
- Click here to Download
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