X9313(2005) データシートの表示（PDF） - Intersil
部品番号
コンポーネント説明
一致するリスト
X9313 Datasheet PDF : 11 Pages
| |||
X9313
Applications Information
Electronic digitally controlled potentiometers (XDCP) provide
three powerful application advantages; (1) the variability and
reliability of a solid-state potentiometer, (2) the flexibility of
computer-based digital controls, and (3) the retentivity of
nonvolatile memory used for the storage of multiple
potentiometer settings or data.
Basic Configurations of Electronic Potentiometers
VR
VR
VH
VW/RW
VL
THREE-TERMINAL POTENTIOMETER;
VARIABLE VOLTAGE DIVIDER
Basic Circuits
BUFFERED REFERENCE VOLTAGE
R1
+V
VREF
+5V
VW
OP-07
+
VOUT
–
-5V
VOUT = VW/RW
I
TWO-TERMINAL VARIABLE RESISTOR;
VARIABLE CURRENT
CASCADING TECHNIQUES
+V
+V
X
VW/RW
+V
VW
(a)
(b)
NONINVERTING AMPLIFIER
+5V
VS
+
LM308A
VO
–
-5V
R2
R1
VO = (1 + R2 / R1)VS
VOLTAGE REGULATOR
OFFSET VOLTAGE ADJUSTMENT
COMPARATOR WITH HYSTERESIS
VIN
317
VO (REG)
R1
Iadj
R2
VO (REG) = 1.25V (1 + R2 / R1) + IADJ R2
R1
VS
100kΩ
10kΩ
R2
–
+
TL072
10kΩ
10kΩ
+12V
-12V
VS LT311A –
VO
+
VO
R1 R2
VUL = [R1 / (R1 + R2)] VO(max)
VLL = [R1 / (R1 + R2)] VO(min)
(for additional circuits see AN115)
9
FN8177.2
September 9, 2005
Share Link: 