参数资料
型号: AD8420ARMZ-RL
厂商: Analog Devices Inc
文件页数: 4/28页
文件大小: 0K
描述: IC AMP INSTR RR 2.5KHZ 8MSOP
标准包装: 3,000
放大器类型: 仪表
电路数: 1
输出类型: 满摆幅
转换速率: 1 V/µs
-3db带宽: 250kHz
电流 - 输入偏压: 20nA
电压 - 输入偏移: 250µV
电流 - 电源: 85µA
电流 - 输出 / 通道: 10mA
电压 - 电源,单路/双路(±): 2.7 V ~ 36 V,±2.7 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
AD8420
Data Sheet
Rev. 0 | Page 12 of 28
40
35
30
25
20
15
10
5
–2.0
0
3.0
2.5
2.0
1.5
1.0
0.5
INP
UT
BI
AS
CURRE
NT
(
n
A)
COMMON-MODE VOLTAGE (V)
099
45-
0
19
+2.7V
IBIAS (+IN)
IBIAS (–IN)
–0.2V
Figure 21. Input Bias Current vs. Common-Mode Voltage
400
–400
–300
–200
–100
0
100
200
300
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
INP
UT
BI
AS
CURRE
NT
(
n
A)
DIFFERENTIAL INPUT VOLTAGE (V)
099
45-
0
20
IBIAS (+IN)
IBIAS (–IN)
SPECIFIED
PERFORMANCE RANGE
Figure 22. Input Bias Current vs. Differential Input Voltage, VS = ±15
100
0
20
40
60
80
0.1
1
10
100
1k
10k
100k
P
S
RR
(
d
B)
FREQUENCY (Hz)
GAIN = 1000
BANDWIDTH
LIMIT
GAIN = 100
GAIN = 10
GAIN = 1
099
45-
500
Figure 23. PSRR vs. Frequency on 5 V Supply
120
0
20
40
60
80
100
0.1
1
10
100
1k
10k
100k
P
O
SI
T
IVE
PSR
R
(
d
B
)
FREQUENCY (Hz)
GAIN = 1000
BANDWIDTH
LIMIT
GAIN = 100
GAIN = 10
GAIN = 1
099
45-
323
VS = ±15V
Figure 24. Positive PSRR vs. Frequency, RTI, VS = ±15 V
120
0
20
40
60
80
100
0.1
1
10
100
1k
10k
100k
NE
G
AT
IV
E
P
S
RR
(
d
B)
FREQUENCY (Hz)
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
099
45-
324
BANDWIDTH
LIMIT
VS = ±15V
Figure 25. Negative PSRR vs. Frequency, RTI, VS = ±15 V
70
–30
–20
–10
0
10
20
30
40
50
60
1
10
100
1k
10k
100k
1M
GA
IN
(dB
)
FREQUENCY (Hz)
099
45-
0
23
VS = ±15V
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
Figure 26. Gain vs. Frequency
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