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Schematic cs_11007.0 High Output Impedance Current Source De


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Schematic cs_11007.0
High Output Impedance Current Source
Description
This current source uses reference current produces output current that substantially higher dynamic output impedance, particularly current levels less than 100uA. This current source buffers reference current produces constant current wide voltage range. This current source utilizes pairs channel matched pair MOSFETs connected cascode configuration. bottom MOSFET pair must matched pair MOSFET pair must also matched pair. However, pair bottom pair have same model. lower voltage compliance range determined VGS(TH) upper voltage compliance voltage breakdown voltage. very VGS(TH) devices such ALD110802 ALD110800 reduce lower voltage compliance limit.
Recommended Components
ALD110902 ALD1116, ALD1102, ALD1103 ALD1102
Other Related Circuit Ideas
Schematic cs_11002.0 Cascode Current Source Schematic cs_11008.0 High Output Impedance Current Mirror
2005 Advanced Linear Devices, Inc. Information furnished Advanced Linear Devices, Inc. (ALD) believed accurate reliable. However, assumes responsibility such information infringement patent rights third parties that result from use. license granted implication otherwise under patent rights ALD. www.aldinc.com

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