参数资料
型号: AD8033AR
厂商: Analog Devices Inc
文件页数: 16/25页
文件大小: 0K
描述: IC OPAMP VF R-R LN LP 60MA 8SOIC
产品培训模块: Op Amp Basics
标准包装: 98
系列: FastFET™
放大器类型: 电压反馈
电路数: 1
输出类型: 满摆幅
转换速率: 80 V/µs
-3db带宽: 80MHz
电流 - 输入偏压: 1.5pA
电压 - 输入偏移: 1000µV
电流 - 电源: 3.3mA
电流 - 输出 / 通道: 60mA
电压 - 电源,单路/双路(±): 5 V ~ 24 V,±2.5 V ~ 12 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
AD8033/AD8034
Rev. D | Page 22 of 24
0
29
24-
06
3
FREQUENCY (Hz)
VO
L
T
A
G
E
N
O
ISE
(n
V/
√Hz
)
2πRF CF
2πRF (CF + CS + CM + 2CD)
(CS + CM + 2CD + CF)/CF
RF NOISE
VEN (CF + CS + CM + 2CD)/CF
f3
f2
f3 =
VEN
f1
f2 =
f1 =
1
fCR
NOISE DUE TO AMPLIFIER
The output noise over frequency of the preamp is shown in
The pole in the loop transmission translates to a zero in the
noise gain of the amplifier, leading to an amplification of the
input voltage noise over frequency. The loop transmission zero
introduced by CF limits the amplification. The bandwidth of the
noise gain extends past the preamp signal bandwidth and is
eventually rolled off by the decreasing loop gain of the amplifier.
Keeping the input terminal impedances matched is recommended
to eliminate common-mode noise peaking effects that add to
the output noise.
Integrating the square of the output voltage noise spectral density
over frequency and then taking the square root results in the
total rms output noise of the preamp.
Figure 63. Photodiode Voltage Noise Contributions
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