DG441DJ(1999) Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
DG441DJ Datasheet PDF : 10 Pages
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DG441, DG442
Application Information
GAIN ERROR IS DETERMINED ONLY BY THE RESISTOR TOLERANCE.
OP AMP OFFSET AND CMRR WILL LIMIT ACCURACY OF CIRCUIT.
+15V
FET INPUT 7 -15V
VIN
OP AMP 3 4
2
6
+15V
13
VOUT
GAIN1
AV = 1
GAIN2
AV = 10
GAIN3
AV = 20
GAIN4
AV = 100
2
1
15
16
10
9
7
8
V-
4
-15V
3
14
11
6
GND
5
R1
90kΩ
R2
5kΩ
R3
4kΩ
R4
1kΩ
V----V-O---I-U-N---T-- = R-----1-----+----R-----2--R--+---4--R-----3----+-----R-----4- = 100 with SW4 closed
FIGURE 6. PRECISION WEIGHTED RESISTOR
PROGRAMMABLE GAIN AMPLIFIER
VIN
+-
INX
1 = SAMPLE
0 = HOLD
+15V
1/4 DG442
SX
DX
CH
+-
-15V
VOUT
FIGURE 7. OPEN LOOP SAMPLE AND HOLD
Typical Performance Curves
100
±5V
80
60
±8V
±10V
±12V
40
±15V
±20V
20
0
-20
0
20
VD (V)
FIGURE 8. rDS(ON) vs VD AND POWER SUPPLY VOLTAGE
80
V+ = +15V
V- = -15V
70
60
50
40
30
0oC
20
-40oC
-55oC
10
125oC
85oC
25oC
0
-15
0
15
VD (V)
FIGURE 9. rDS(ON) vs VD AND TEMPERATURE
6
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