X93254_08 Datasheet, PDF (7/8 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometers(XDCPs™)

X93254
.
I
V_R
Two terminal variable resistor.
Variable current
Low Voltage High Impedance Instrumentation Amplifier
3.3V
10k
+
+
10k
U1A
–
50k
V_IN
1_{/ 2 X93254 (RTOTAL)}
50k
–
10k
U1B
10k
–
+
50k
–
U1C
+
V_OUT
GAIN =
50k
10k
( 1+
50k ₎
R_TOTAL
U1 = LT1467
50k
Micro-Power LCD Contrast Control
3.3V
240k
100k
3.3V
+
U1A
–
100k
50k
300k
100k
–
U1B
+
–12V
1_{/ 2 X93254 (RTOTAL)}
V_OUT = -3.88
( 1+
100k
)
50k + R_TOTAL
V_OUT = -2.75V TO -11.6V
U1 = LMC6042
Single Supply Variable Gain Amplifier
3.3V
20k
20k
V_IN
10k
3.3V
+
U1
–
V_OUT
GAIN = ^RTOTAL
10k
U1 = LMC6042
1_{/ 2 X93254}
(R_TOTAL)
7
FN8186.1
February 4, 2008