ADG612 AD [Analog Devices], ADG612 Datasheet - Page 8
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ADG612
Manufacturer Part Number
ADG612
Description
1 pC Chanrge Injection, 100 pA Leakage, CMOS +-5 V/+5 V/+3 V Quad SPST Switches
Manufacturer
AD [Analog Devices]
Datasheet
1.ADG612.pdf
(12 pages)
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ADG611/ADG612/ADG613
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0.3
0.3
1
1
FREQUENCY – MHz
FREQUENCY – MHz
10
10
100
100
V
V
T
V
V
T
DD
SS
A
DD
SS
A
= 25 C
= +25 C
= –5V
= +5V
= +5V
= –5V
1k
1k
APPLICATIONS
Figure 1 illustrates a photodetector circuit with programmable
gain. With the resistor values shown in the circuits, and using
different combinations of switches, gains in the range of 2 to 16
can be achieved.
(MSB) IN4
(LSB) IN1
D1
IN2
IN3
2.5V
S1
S2
S3
S4
GND
5V
C1
33k
D2
D3
D4
R1
D1
GAIN RANGE 2 TO 16
120k
240k
R6
R4
120k
120k
120k
R8
R9
R9
120k
240k
R7
R5
5V
R2
510k
R3
510k
2.5V
V
OUT