參數(shù)資料
型號(hào)： AD8051AR
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/25頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP VF R-R LDIST LP 8SOIC
標(biāo)準(zhǔn)包裝： 98
放大器類(lèi)型： 電壓反饋
電路數(shù)： 1
輸出類(lèi)型： 滿(mǎn)擺幅
轉(zhuǎn)換速率： 170 V/µs
-3db帶寬： 110MHz
電流 - 輸入偏壓： 1.4µA
電壓 - 輸入偏移： 1800µV
電流 - 電源： 4.8mA
電流 - 輸出 / 通道： 45mA
電壓 - 電源，單路/雙路(±)： 3 V ~ 12 V，±1.5 V ~ 6 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)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
AD8051/AD8052/AD8054
Rev. J | Page 16 of 24
THEORY OF OPERATION
CIRCUIT DESCRIPTION
The AD8051/AD8052/AD8054 are fabricated on the Analog
Devices, Inc. proprietary eXtra-Fast Complementary Bipolar
(XFCB) process, which enables the construction of PNP and
NPN transistors with similar fTs in the 2 GHz to 4 GHz region.
The process is dielectrically isolated to eliminate the parasitic
and latch-up problems caused by junction isolation. These
features allow the construction of high frequency, low distortion
amplifiers with low supply currents. This design uses a differential
output input stage to maximize bandwidth and headroom (see
Figure 40). The smaller signal swings required on the first stage
outputs (nodes SIP, SIN) reduce the effect of nonlinear currents
due to junction capacitances and improve the distortion per-
formance. This design achieves harmonic distortion of 80 dBc
@ 1 MHz into 100 Ω with VOUT = 2 V p-p (gain = +1) on a
single 5 V supply.
The inputs of the device can handle voltages from 0.2 V below
the negative rail to within 1 V of the positive rail. Exceeding
these values do not cause phase reversal; however, the input
ESD devices begin to conduct if the input voltages exceed the
rails by greater than 0.5 V. During this overdrive condition, the
output stays at the rail.
The rail-to-rail output range of the AD8051/AD8052/AD8054
is provided by a complementary common emitter output stage.
High output drive capability is provided by injecting all output
stage predriver currents directly into the bases of the output
devices Q8 and Q36. Biasing of Q8 and Q36 is accomplished by
I8 and I5, along with a common-mode feedback loop (not
shown). This circuit topology allows the AD8051/AD8052 to
drive 45 mA of output current and allows the AD8054 to drive
30 mA of output current with the outputs within 0.5 V of the
supply rails.
I10
R39
VEE
I2
I3
Q25
Q51
R23 R27
I9
Q36
I5
VEE
C3
C9
I8
VCC
I11
I7
R3
R21
R5
Q3
SIP
SIN
C7
Q4
R15 R2
R26
Q50
Q22
Q21
Q27
Q7
Q8
Q23
Q31
Q39
Q13
Q1
Q24
Q47
Q11
Q2
Q5
Q40
VOUT
VCC
VINP
VINN
VEE
01
06
2-
04
5
Figure 40. AD8051/AD8052 Simplified Schematic
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參數(shù)描述
AD8051AR-EBZ 功能描述:BOARD EVAL FOR AD8051AR RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)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:-
AD8051AR-REEL 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk R-R O/P ±6V/12V 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:SOIC SINGLE 200MHZ L/C RAIL-TO-RAIL AMP - Tape and Reel
AD8051AR-REEL7 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk R-R O/P ±6V/12V 8-Pin SOIC N T/R
AD8051ART 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Voltage-Feedback Operational Amplifier
AD8051ART-EBZ 功能描述:BOARD EVAL FOR AD8051ART RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)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:-
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