参数资料
型号: ADG783BCPZ-REEL
厂商: Analog Devices Inc
文件页数: 6/9页
文件大小: 0K
描述: IC SWITCH QUAD SPST 20LFCSP
产品培训模块: Switch Fundamentals
标准包装: 5,000
功能: 开关
电路: 4 x SPST - NC/NO
导通状态电阻: 4 欧姆
电压电源: 单电源
电压 - 电源,单路/双路(±): 1.8 V ~ 5.5 V
电流 - 电源: 1nA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘,CSP
供应商设备封装: 20-LFCSP
包装: 带卷 (TR)
REV.
ADG781/ADG782/ADG783
–6–
FREQUENCY – Hz
–30
OFF
ISOLATION
dB
–40
–110
–120
–130
10k
100k
1M
10M
100M
–100
–90
–80
–70
–60
–50
VDD = 5V, 3V
TPC 5. Off Isolation vs. Frequency
FREQUENCY – Hz
–30
CROSSTALK
dB
–40
–110
–120
–130
10k
100k
1M
10M
VDD = 5V, 3V
100M
–100
–90
–80
–70
–60
–50
TPC 6. Crosstalk vs. Frequency
FREQUENCY – Hz
0
ON
RESPONSE
dB
–6
10k
100k
1M
10M
VDD = 5V
100M
–4
–2
TPC 7. On Response vs. Frequency
SOURCE VOLTAGE – V
25
Q
INJ
pC
–10
0
0.5
–5
0
20
15
10
5
1
1.5
2
2.5
3
3.5
4
4.5
5
VDD = 5V
VDD = 3V
TA = 25 C
TPC 8. Charge Injection vs. Source Voltage
APPLICATIONS
Figure 1 illustrates a photodetector circuit with programmable
gain. An AD820 is used as the output operational amplifier.
With the resistor values shown in the circuit, and using different
combinations of the switches, gain in the range of 2 to 16 can
be achieved.
5V
2.5V
R3
510k
C1
VOUT
GND
D1
S1
D1
GAIN RANGE 2 TO 16
5V
AD820
S2
D2
S3
D3
S4
D4
(LSB) IN1
IN2
IN3
(MSB) IN4
R4
240k
R5
240k
R6
120k
R7
120k
R8
120k
R9
120k
R10
120k
R1
33k
R2
510k
2.5V
Figure 1. Photodetector Circuit with Programmable Gain
C
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