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參數(shù)資料
| 型號(hào)： | AD8017ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP GP DUAL LP LDIST 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 2 |
| 轉(zhuǎn)換速率： | 1600 V/µs |
| -3db帶寬： | 160MHz |
| 電流 - 輸入偏壓： | 16µA |
| 電壓 - 輸入偏移： | 1800µV |
| 電流 - 電源： | 7mA |
| 電流 - 輸出 / 通道： | 270mA |
| 電壓 - 電源，單路/雙路(±)： | 4.4 V ~ 12 V，±2.2 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-SOIC |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 766 (CN2011-ZH PDF) |
| 配用： | AD8017AR-EVAL-ND - BOARD EVAL FOR AD8017 |
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AD8017
–11–
REV. C
THEORY OF OPERATION
The AD8017 is a dual high speed CF amplifier that attains new
levels of bandwidth (BW), power, distortion and signal swing,
under heavy current loads. Its wide dynamic performance
(including noise) is the result of both a new complementary
high speed bipolar process and a new and unique architectural
design. The AD8017 basically uses a two gain stage comple-
mentary 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
cascode 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. In the time
domain, the large signal output rise/fall time and slew rate is
typically controlled by the small signal BW of the amplifier and
the input signal step amplitude respectively, not the dc quies-
cent current of the gain stages (with the exception of input level
shift diodes Q1/Q2). Using two stages as opposed to one, also
allows for a higher overall gain bandwidth product (GBWP) for
the same power, thus providing 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. See Figure 6.
Overall, when “high” external load drive and low ac distortion is
a requirement, a twin gain stage integrating amplifier like the
AD8017 will provide excellent results for low power over the
traditional single stage complementary devices. In addition,
being a CF amplifier, closed-loop BW variations versus external
gain variations (varying RG) 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 less than half the quiescent power (versus
12 V supply) with little degradation in its ac and dc performance
characteristics. See specification pages for comparisons.
DC GAIN CHARACTER
Gain stages A1/
A1 and A2/A2 combined provide negative feed-
forward transresistance gain. See Figure 6. Stage A3 is a unity
gain buffer which provides external load isolation to A2. Each
stage uses a symmetrical complementary design. (A3 is also
complementary, though not explicitly shown). This is done to
reduce both second order signal distortion and overall quiescent
power as discussed above. In the quasi dc-to-low frequency
region, the closed loop gain relationship can be approximated as:
G = 1+RF/RG for Noninverting Operation
G = –RF/RG for Inverting Operation
These basic relationships above are common to all traditional
operational amplifiers.
A1
IPN
IQ1
Q3
IPP
VP
+
Q1
Q2
Z1
Q4
–
INP
IPN
A1
VN
IR + IFC
IR – IFC
IQ1
IE
AD8017
–VI
CP1
–VI
CP1
–A2
CP2
ICQ + IO
VO9
–A3
–
A2
CD
Z1
ICQ – IO
RN
RF
Z2
RL
CL
VO
Z1 = R1 || C1
Z1
CD
Figure 6. Simplified Block Diagram
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| AD8017ARZ-REEL | 功能描述:IC AMP GP DUAL LP LDIST 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有關(guān)文件:Automotive Product Guide 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:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:3 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:70µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:Digi-Reel® 其它名稱:MAX4475AUT#TG16DKR |
| AD8017ARZ-REEL7 | 功能描述:IC AMP GP DUAL LP LDIST 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 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:- 放大器類型:電流檢測(cè) 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:- 增益帶寬積:125kHz -3db帶寬:- 電流 - 輸入偏壓:- 電壓 - 輸入偏移:100µV 電流 - 電源:1.1µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-WFBGA，CSPBGA 供應(yīng)商設(shè)備封裝:4-UCSP（2x2） 包裝:剪切帶 (CT) 其它名稱:MAX9634WERS+TCT |
| AD8018 | 制造商:AD 制造商全稱:Analog Devices 功能描述:5 V, Rail-to-Rail, High-Output Current, xDSL Line Drive Amplifier |
| AD80182ABSVZ | 制造商:Analog Devices 功能描述: |
| AD80182BSVZ | 制造商:Analog Devices 功能描述: |
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