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參數(shù)資料
| 型號： | AD8031ANZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大小： | 0K |
| 描述： | IC OPAMP VF R-R LP LDIST 8DIP |
| 設(shè)計資源： | High Speed, Precision, Differential AC-Coupled Drive Circuit for AD7625 (CN0080) Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105) |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 35 V/µs |
| -3db帶寬： | 80MHz |
| 電流 - 輸入偏壓： | 450nA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 900µA |
| 電流 - 輸出 / 通道： | 15mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 12 V，±1.35 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 769 (CN2011-ZH PDF) |
Data Sheet
AD8031/AD8032
Rev. G | Page 15 of 20
DRIVING CAPACITIVE LOADS
Capacitive loads interact with an op amp’s output impedance to
create an extra delay in the feedback path. This reduces circuit
stability and can cause unwanted ringing and oscillation. A
given value of capacitance causes much less ringing when the
amplifier is used with a higher noise gain.
increased by adding a low valued resistor in series with the
capacitive load. Introducing a series resistor tends to isolate the
capacitive load from the feedback loop, thereby diminishing its
influence. Figure 46 shows the effects of a series resistor on the
capacitive drive for varying voltage gains. As the closed-loop
gain is increased, the larger phase margin allows for larger
capacitive loads with less overshoot. Adding a series resistor at
lower closed-loop gains accomplishes the same effect. For large
capacitive loads, the frequency response of the amplifier is
dominated by the roll-off of the series resistor and capacitive load.
1000
10
100
C
A
P
A
C
ITIV
E
LOA
D
(
pF)
CLOSED-LOOP GAIN (V/V)
1
0
1
2
3
4
5
RS = 5
RS = 0
RS = 20
RS = 0, 5
VS = 5V
200mV STEP
WITH 30% OVERSHOOT
RG
RF
RS
CL
VOUT
01056-
046
Figure 46. Capacitive Load Drive vs. Closed-Loop Gain
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8031ANZ | 制造商:Analog Devices 功能描述:Operational Amplifier (Op-Amp) IC |
| AD8031AR | 功能描述:IC OPAMP VF R-R LP LDIST 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:0.2 V/µs 增益帶寬積:- -3db帶寬:- 電流 - 輸入偏壓:100pA 電壓 - 輸入偏移:30µV 電流 - 電源:380µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):±2 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:管件 |
| AD8031AR-EBZ | 功能描述:BOARD EVAL FOR AD8031AR RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運算放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| AD8031AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk R-R I/O 制造商:Rochester Electronics LLC 功能描述:SOIC SINGLE LOW POWER OP AMP - Tape and Reel |
| AD8031AR-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk R-R I/O 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk R-R I/O ±6V/12V 8-Pin SOIC N T/R |
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