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參數(shù)資料
| 型號(hào)： | AD8047ANZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 6/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP VF GP LDIST 50MA 8DIP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 750 V/µs |
| -3db帶寬： | 250MHz |
| 電流 - 輸入偏壓： | 1µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 5.8mA |
| 電流 - 輸出 / 通道： | 50mA |
| 電壓 - 電源，單路/雙路(±)： | 6 V ~ 12 V，±3 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(yè)面： | 769 (CN2011-ZH PDF) |
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REV. A
AD8047/AD8048
–13–
RF
RL
1k
CL
AD8047
RSERIES
Figure 6. Driving Capacitive Loads
5ns
500mV
Figure 7. AD8047 Large Signal Transient Response;
VO = 2 V p-p, G = +1, RF = 0
, RSERIES = 0 , CL = 27 pF
RF
RIN
RL
1k
CL
AD8048
RSERIES
Figure 8. Driving Capacitive Loads
5ns
500mV
Figure 9. AD8048 Large Signal Transient Response;
VO = 2 V p-p, G = +2, RF = RIN = 200
, RSERIES = 0 ,
CL = 27 pF
APPLICATIONS
The AD8047 and AD8048 are voltage feedback amplifiers well
suited for such applications as photodetectors, active filters, and
log amplifiers. The devices’ wide bandwidth (260 MHz), phase
margin (65
°), low noise current (1.0 pA/√Hz), and slew rate
(1000 V/
s) give higher performance capabilities to these appli-
cations over previous voltage feedback designs.
With a settling time of 30 ns to 0.01% and 13 ns to 0.1%, the
devices are an excellent choice for DAC I/V conversion. The
same characteristics along with low harmonic distortion make
them a good choice for ADC buffering/amplification. With
superb linearity at relatively high signal frequencies, the AD8047
and AD8048 are ideal drivers for ADCs up to 12 bits.
Operation as a Video Line Driver
The AD8047 and AD8048 have been designed to offer out-
standing performance as video line drivers. The important
specifications of differential gain (0.01%) and differential phase
(0.02
°) meet the most exacting HDTV demands for driving
video loads.
+VS
–VS
VIN
VOUT
10 F
0.1 F
AD8047/
AD8048
3
2
7
6
4
75
CABLE
75
CABLE
200
Figure 10. Video Line Driver
Active Filters
The wide bandwidth and low distortion of the AD8047 and
AD8048 are ideal for the realization of higher bandwidth active
filters. These characteristics, while being more common in many
current feedback op amps, are offered in the AD8047 and AD8048
in a voltage feedback configuration. Many active filter configu-
rations are not realizable with current feedback amplifiers.
A multiple feedback active filter requires a voltage feedback
amplifier and is more demanding of op amp performance than
other active filter configurations such as the Sallen-Key. In
general, the amplifier should have a bandwidth that is at least
10 times the bandwidth of the filter if problems due to phase
shift of the amplifier are to be avoided.
Figure 11 is an example of a 20 MHz low-pass multiple feed-
back active filter using an AD8048.
+5V
–5V
VOUT
C1
50pF
C2
100pF
R3
78.7
R4
154
R1
154
10 F
0.1 F
AD8048
3
2
7
6
5
1
4
100
VIN
Figure 11. Active Filter Circuit
It is worth noting that the frequency response of the circuit
when driving large capacitive loads will be dominated by the
passive roll-off of RSERIES and CL.
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD8047AR | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk 制造商:Analog Devices 功能描述:AMPLIFIER IC NUMBER OF CIRCUITS:1 |
| AD8047AR-EBZ | 功能描述:BOARD EVAL FOR AD8047AR RoHS:是 類別: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:- |
| AD8047AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk 制造商:Rochester Electronics LLC 功能描述:G=1 STABLE V-FDBK OP AMP - Tape and Reel |
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| AD8047ARZ | 功能描述:IC OPAMP VF GP LDIST 50MA 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 |
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