VCR2N Vishay, VCR2N Datasheet - Page 3

• Manufacturer Part Number: VCR2N
• Description: Jfet Voltage-controlled Resistors
• Manufacturer: Vishay

APPLICATIONS
A simple application of a FET VCR is shown in Figure 1, the
circuit for a voltage divider attenuator.
Document Number: 70293
S-41225—Rev. F, 28-Jun-04
TYPICAL CHARACTERISTICS (T
V
IN
FIGURE 1. Simple Attenuator Circuit
ï
+
R
V
GS
VCR
200
160
120
80
40
0
A
0
= 25_C UNLESS OTHERWISE NOTED)
V
V
OUT
GS(off)
Output Characteristics (VCR7N)
0.2
V
= ï2.5 V
DS
ï Drain-Source Voltage (V)
0.4
The output voltage is:
It is assumed that the output voltage is not so large as to push
the VCR out of the linear resistance region, and that the r
not shunted by the load.
The lowest value which V
Since r
0.6
V
GS
DS
= 0 V
can be extremely large, the highest value is:
V
0.8
OUT(min)
ï0.5 V
ï1.0 V
ï1.5 V
ï2.0 V
V
OUT
V
=
=
OUT(max)
1
OUT
= V
IN
V
R +
can assume is:
IN
V
R +
r
r
IN
DS
DS
Vishay Siliconix
r
r
VCR2N/4N/7N
DS(on)
DS(on)
www.vishay.com
DS
is
3