DG444 데이터 시트보기 (PDF) - Intersil
부품명
상세내역
제조사
DG444 Datasheet PDF : 12 Pages
| |||
DG444, DG445
Test Circuits and Waveforms (Continued)
+15V
C V+
IMPEDANCE
ANALYZER
f = 1MHz
VS
INX 0V, 2.4V
VD
C
GND
V-
-15V
FIGURE 5. SOURCE/DRAIN CAPACITANCES TEST CIRCUIT
Application Information
VIN
GAIN1
AV = 1
GAIN2
AV = 10
GAIN3
AV = 20
GAIN4
AV = 100
FET INPUT
+15V
OP AMP
3
2
+-
76
4
+5V
+15V
12
-15V 13
2 VL
V+
3
1
15
14
16
10
11
9
7
6
8
DG444 OR DG445
V-
GND
4
5
-15V
VOUT
R1
90kΩ
R2
5kΩ
R3
4kΩ
R4
1kΩ
GAIN ERROR IS DETERMINED ONLY BY
THE RESISTOR TOLERANCE, OP AMP OFFSET
AND CMRR WILL LIMIT ACCURACY OF CIRCUIT
V-----O----U----T--
VIN
=
-R----1----+-----R-----2----+-----R-----3----+-----R-----4-
R4
=
100
WITH SW4 CLOSED
FIGURE 6. PRECISION WEIGHTED RESISTOR
PROGRAMMABLE GAIN AMPLIFIER
+5V
+15V
+15V
VL
V+
1/4 DG444
+5V
VIN
0V
GND V-
+15V
VOUT
0V
10kΩ
FIGURE 7. LEVEL SHIFTER
6
FN3586.9
November 20, 2006
Share Link: 