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參數資料
| 型號： | AD8131ARZ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low Cost, High Speed Differential Driver |
| 中文描述： | OP-AMP, 7000 uV OFFSET-MAX, PDSO8 |
| 封裝： | LEAD FREE, MS-012AA, SOIC-8 |
| 文件頁數： | 19/20頁 |
| 文件大小： | 247K |
| 代理商： | AD8131ARZ-REEL |
AD8131
Rev. B | Page 19 of 20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
P
O
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
FREQUENCY (MHz)
0
Figure 42. FFT Plot for AD8131/AD9203
UNITY-GAIN, SINGLE-ENDED-TO-DIFFERENTIAL
DRIVER
If it is not necessary to offset the output common-mode voltage
(via the V
OCM
pin), then the AD8131 can make a simple unity-
gain single-ended-to-differential amplifier that does not require
any external components. Figure 43 shows the schematic for
this circuit.
–
INPUT
OUT
+OUT
8
2
3
6
5
4
+
+
1
49.9
Ω
10 F
0.1 F
10 F
0.1 F
+5V
–5V
AD8131
0
Figure 43. Unity Gain, Single-Ended-to-Differential Amplifier
As shown above, when D
IN
is left floating, there is 100%
feedback of +OUT to IN via the internal feedback resistor.
This contrasts with the typical gain of 2 operation where D
IN
is
grounded and one third of the +OUT is fed back to IN. The
result is a closed-loop differential gain of 1.
Upon careful observation, it can be seen that only +D
IN
and V
OCM
are referenced to ground. The ground voltage at V
OCM
is the
reference for this circuit. In this unity gain configuration, if a dc
voltage is applied to V
OCM
to shift the common-mode voltage, a
differential dc voltage will be created at the output, along with the
common-mode voltage change. Thus, this configuration cannot
be used when it is desired to offset the common-mode voltage of
the output with respect to the input at +D
IN
.
相關PDF資料 |
PDF描述 |
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| AD8131ARZ-REEL7 | Low Cost, High Speed Differential Driver |
| AD8132ARMZ | Low Cost, High Speed Differential Amplifier |
| AD8132ARMZ-REEL | Low Cost, High Speed Differential Amplifier |
| AD8132ARMZ-REEL7 | Low Cost, High Speed Differential Amplifier |
| AD8132ARZ | Low Cost, High Speed Differential Amplifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8131ARZ-REEL7 | 功能描述:IC AMP DIFF LDIST 60MA 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數:4 輸出類型:- 轉換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:管件 產品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| AD8131-EVAL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low-Cost, High-Speed Differential Driver |
| AD8132 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low-Cost, High-Speed Differential Amplifier |
| AD8132_06 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost, High Speed Differential Amplifier |
| AD8132_09 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost, High Speed Differential Amplifier |
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