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VCR4N

Vishay Siliconix
Part Number VCR4N
Manufacturer Vishay Siliconix
Description JFET Voltage-Controlled Resistors
Published Apr 16, 2005
Detailed Description VCR2N/4N/7N Vishay Siliconix JFET Voltage-Controlled Resistors PRODUCT SUMMARY Part Number VCR2N VCR4N VCR7N VGS(off) ...
Datasheet PDF File VCR4N PDF File

VCR4N
VCR4N

Overview
VCR2N/4N/7N Vishay Siliconix JFET Voltage-Controlled Resistors PRODUCT SUMMARY Part Number VCR2N VCR4N VCR7N VGS(off) Max (V) −7 −7 −5 V(BR)GSS Min (V) −25 −25 −25 rDS(on) Max (W) 60 600 8000 FEATURES D Continuous Voltage-Controlled Resistance D High Off-Isolation D High Input Impedance BENEFITS D Gain Ranging Capability/Wide Range Signal Attenuation D No Circuit Interaction D Simplified Drive APPLICATIONS D Variable Gain Amplifiers D Voltage Controlled Oscillator D AGC DESCRIPTION The VCR2N/4N/7N JFET voltage controlled resistors have an ac drain-source resistance that is controlled by a dc bias voltage (VGS) applied to their high impedance gate terminal.
Minimum rDS occurs when VGS = 0 V.
As VGS approaches the pinch-off voltage, rDS rapidly increases.
This series of junction FETs is intended for applications where the drain-source voltage is a low-level ac signal with no dc component.
Key to device performance is the predictable rDS change versus VGS bias where: r DS(@ V GS +...


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