参数资料
型号: ADA4941-1YCP-EBZ
厂商: Analog Devices Inc
文件页数: 11/25页
文件大小: 0K
描述: BOARD EVAL FOR ADA4941-1YCP
标准包装: 1
每 IC 通道数: 1 - 单
放大器类型: 差分
板类型: 裸(未填充)
已供物品:
已用 IC / 零件: 8-LFCSP 封装
ADA4941-1
Rev. C | Page 18 of 24
Table 10. Output Voltage Noise, G = 2.4 Differential Amplifier Shown in Figure 48
Noise Source
Typical Value
VOP Contribution (nV√Hz)
VON Contribution (nV√Hz)
VO, dm Contribution (nV√Hz)
vn_A1
2.1 nV/√Hz
2.5
5
ip_A1
1 pA/√Hz
1
2
in_A1
1 pA/√Hz
1
2
√4 kTRF
4 nV/√Hz
4
8
√4 kTRG
9 nV/√Hz
1.8
3.6
√4 kTRS
3.6 nV/√Hz
4.4
8.8
vn_inverter
9.2 nV/√Hz
0
9.2
√RS_REF
0
ip_A2 × RS_REF
0
Totals
6.8
11.4
16.5
RF = 1.0 k, RG = 4.99 k, RS = 825 , RS_REF = 0 .
vn_inverter = noise contributions from A2 and its associated internal 1 k feedback resistors and 500 offset current balancing resistor.
Table 11. Output Voltage Noise, G = 2 Differential Amplifier Shown in Figure 49
Noise Source
Typical Value
VOP Contribution (nV√Hz)
VON Contribution (nV√Hz)
VO, dm Contribution (nV√Hz)
vn_A1
2.1 nV/√Hz
2.1
4.2
ip_A1
0
in_A1
0
√4 kTRF
0
√4 kTRG
0
√4 kTRS
0
vn_inverter
9.2 nV/√Hz
0
9.2
√RS_REF
0
ip_A2 × RS_REF
0
Totals
2.1
9.4
10
RF = 0 , RG = ∞, RS = 0 , RS_REF = 0 .
Table 12. Output Voltage Noise, G = 5 Differential Amplifier Shown in Figure 50
Noise Source
Typical Value
VOP Contribution (nV√Hz)
VON Contribution (nV√Hz)
VO, dm Contribution (nV√Hz)
vn_A1
2.1 nV/√Hz
5.25
10.5
ip_A1
1 pA/√Hz
1
2
in_A1
1 pA/√Hz
1
2
√4 kTRF
4 nV/√Hz
4
8
√4 kTRG
3.26 nV/√Hz
4.9
9.8
√4 kTRS
2.54 nV/√Hz
6.54
13.1
vn_inverter
9.2 nV/√Hz
0
9.2
√RS_REF
0
ip_A2 × RS_REF
0
Totals
10.7
14.1
23.1
RF = 1.02 k, RG = 665 , RS = 402 , RS_REF = 0 .
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