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Calogic LLC - N-Channel Dual JFET

Numéro de référence U421
Description N-Channel Dual JFET
Fabricant Calogic LLC 
Logo Calogic  LLC 





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U421 fiche technique
N-Channel Dual JFET
CORPORATION
U421 – U426
FEATURES
Ultra Low Input Bias Current . . . . . . . 250 Fempto Amps
Low Operating Current
•• Tight Matching Characteristics
APPLICATIONS
Ultra Low Leakage FET Input Op Amps
Electrometer
Infrared Detectors
•• pH Meters
DESCRIPTION
The Calogic U421 Series are Dual N-Channel JFETs on a
monolithic structure designed specifically for very high input
impedance for differential amplification and impedance
matching. This series features ultra low input bias current
(250 fempto amps, U421) while offering high gain at low
operating currents and tight matching characteristics. These
devices are available in chip form for hybrid designs as well
as a hermetic TO-78 package.
ORDERING INFORMATION
Part Package
Temperature Range
U421-U426 TO-78 Hermetic Package -55oC to +150oC
XU421-U426 Sorted Chips in Carriers -55oC to +150oC
PIN CONFIGURATION
TO-78
CJ4
C
S2 D2
G1
G2
D1 S1
1 SOURCE 1
2 DRAIN 1
3 GATE 1
4 CASE/BODY
5 SOURCE 2
6 DRAIN 2
7 GATE 2
4
3
5
6
217
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