- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5800 > AD8011AR (Analog Devices Inc)IC OPAMP CF LP LDIST 30MA 8SOIC PDF資料下載
參數(shù)資料
| 型號： | AD8011AR |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/17頁 |
| 文件大小： | 0K |
| 描述： | IC OPAMP CF LP LDIST 30MA 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 3500 V/µs |
| -3db帶寬： | 400MHz |
| 電流 - 輸入偏壓： | 5µA |
| 電壓 - 輸入偏移： | 2000µV |
| 電流 - 電源： | 1.3mA |
| 電流 - 輸出 / 通道： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°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 |
REV. C
AD8011
–9–
THEORY OF OPERATION
The AD8011 is a revolutionary generic high speed CF amplifier
that attains new levels of BW, power, distortion, and signal swing
capability. If these key parameters were combined as a figure of
ac merit performance or [(frequency
VSIG)/(distortion
power)],
no IC amplifier today would come close to the merit value of the
AD8011 for frequencies above a few MHz. Its wide dynamic
performance (including noise) is the result of both a new com-
plementary high speed bipolar process and a new and unique
architectural design. The AD8011 uses basically a two gain stage
complementary design approach versus the traditional “single
stage” complementary mirror structure sometimes referred to as
the Nelson amplifier. Though twin stages have been tried before,
they typically consumed high power since they were of a folded
cascade design much like the AD9617. This design allows for
the standing or quiescent current to add to the high signal or slew
current induced stages much like the Nelson or single-stage design.
Thus, in the time domain, the large signal output rise/fall time
and slew rate is controlled typically by the small signal BW of the
amplifier and the input signal step amplitude respectively, not the
dc quiescent current of the gain stages (with the exception of
input level shift diodes Q1/Q2). Using two stages versus one also
allows for a higher overall gain bandwidth product (GBWP) for
the same power, thus lower signal distortion and the ability to
drive heavier external loads. In addition, the second gain stage
also isolates (divides down) A3’s input reflected load drive and
the nonlinearities created resulting in relatively lower distortion
and higher open-loop gain.
Overall, when high external load drive and low ac distortion is a
requirement, a twin gain stage integrating amplifier like the AD8011
will provide superior results for lower power over the traditional
single-stage complementary devices. In addition, being a CF
amplifier, closed-loop BW variations versus external gain variations
(varying RN) will be much lower compared to a VF op amp, where
the BW varies inversely with gain. Another key attribute of this
amplifier is its ability to run on a single 5 V supply due in part to
its wide common-mode input and output voltage range capability.
For 5 V supply operation, the device obviously consumes half
the quiescent power (versus 10 V supply) with little degradation
in its ac and dc performance characteristics. See Specifications.
DC GAIN CHARACTERISTICS
Gain stages A1/A1B and A2/A2B combined provide negative
feedforward transresistance gain (see Figure 6). Stage A3 is a unity
gain buffer that provides external load isolation to A2. Each stage
uses a symmetrical complementary design. (A3 is also complemen-
tary though not explicitly shown.) This is done to reduce second
order signal distortion and overall quiescent power as discussed
previously. In the quasi dc to low frequency region, the closed-
loop gain relationship can be approximated as
G = 1 + RF/RN
noninverting operation
G = –RF/RN
inverting operation
These basic relationships are common to all traditional opera-
tional amplifiers. Due to the inverting input error current (IE)
required to servo the output and the inverting IE
RI drop
VP
Q1
Q2
IPP
IPN
VN
ZI
IQ1
Q3
Q4
IE
IR – IFC
IR + IFC
CP1
Z2
A2
CL
RL
ICQ – IO
RF
VO
CD
ICQ + IO
–VI
VO
IQ1
AD8011
A2
CP2
Z1
Z1 = R1 || C1
Z1
CD
RL
A1
INP
A3
Figure 6. Simplified Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 0001.1015 | FUSE 12.5A 250V 5X20 FAST CERM |
| LT6235CGN#TRPBF | IC OP AMP QUAD 60MHZ R-R 16-SSOP |
| LT6235CGN#TR | IC OP AMP QUAD 60MHZ R-R 16-SSOP |
| 0001.2511 | FUSE 5A 250V 5X20 T-LAG CERM |
| 0001.1012 | FUSE 6.3A 250V 5X20 FAST CERM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8011AR-EBZ | 功能描述:BOARD EVAL FOR AD8011AR RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運(yùn)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:- |
| AD8011AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Single Current Fdbk ±6V/12V 8-Pin SOIC N T/R |
| AD8011AR-REEL7 | 功能描述:IC OPAMP CF LP LDIST 30MA 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°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:帶卷 (TR) |
| AD8011ARZ | 功能描述:IC OPAMP CF LP LDIST 30MA 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD8011ARZ | 制造商:Analog Devices 功能描述:Operational Amplifier (Op-Amp) IC 制造商:Analog Devices 功能描述:IC, OP-AMP, 300MHZ, 3500V/ us, SOIC-8 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。