RG R
參數(shù)資料
型號: AD8131AR
廠商: Analog Devices Inc
文件頁數(shù): 8/21頁
文件大?。?/td> 0K
描述: IC AMP DIFF LDIST 60MA 8SOIC
標準包裝: 98
放大器類型: 差分
電路數(shù): 1
輸出類型: 差分
轉換速率: 2000 V/µs
-3db帶寬: 400MHz
電流 - 輸入偏壓: 500nA
電壓 - 輸入偏移: 1500µV
電流 - 電源: 11.5mA
電流 - 輸出 / 通道: 60mA
電壓 - 電源,單路/雙路(±): 2.8 V ~ 11 V,±1.4 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 8-SO
包裝: 管件
AD8131
Rev. B | Page 15 of 20
OPERATIONAL DESCRIPTION
AD8131
RG
RF
RL, dm VOUT, dm
–OUT
+OUT
–OUT
+OUT
+IN
–IN
+DIN
–DIN
VOCM
01072-039
Figure 39. Circuit Definitions
Differential voltage refers to the difference between two node
voltages. For example, the output differential voltage (or
equivalently output differential-mode voltage) shown in
Figure 39 is defined as
(
)
OUT
dm
OUT
V
+
=
,
V+OUT and V–OUT refer to the voltages at the +OUT and OUT
terminals with respect to a common reference.
Common-mode voltage refers to the average of two node
voltages. The output common-mode voltage is defined as
(
) 2
,
OUT
cm
OUT
V
+
=
Balance is a measure of how well differential signals are
matched in amplitude and exactly 180 degrees apart in phase.
Balance is most easily determined by placing a well-matched
resistor divider between the differential voltage nodes and
comparing the magnitude of the signal at the divider’s midpoint
with the magnitude of the differential signal. By this definition,
output balance is the magnitude of the output common-mode
voltage divided by the magnitude of the output differential-
mode voltage.
dm
OUT
cm
OUT
V
Error
Balance
Output
,
=
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