參數(shù)資料
型號(hào)： ADA4858-3ACP-EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 6/20頁(yè)
文件大小： 0K
描述： BOARD EVAL FOR ADA4858-3ACP
標(biāo)準(zhǔn)包裝： 1
每 IC 通道數(shù)： 3 - 三
放大器類(lèi)型： 電流反饋
板類(lèi)型： 裸（未填充）
已供物品： 板
已用 IC / 零件： 16-LFCSP 封裝
ADA4858-3
Data Sheet
Rev. B | Page 14 of 20
APPLICATIONS INFORMATION
GAIN CONFIGURATIONS
The ADA4858-3 is a single-supply, high speed, voltage feedback
amplifier. Table 5 provides a convenient reference for quickly
determining the feedback and gain set resistor values and band-
width for common gain configurations.
Gain
R
F ()
R
G ()
Small Signal
3 dB BW (MHz)
Large Signal 0.1 dB
Flatness (MHz)
1
402
N/A
600
88
2
301
350
85
5
200
40
160
35
1 Conditions: V
S = 5 V, TA = 25°C, RL = 150 .
Figure 38 and Figure 39 show the typical noninverting and
inverting configurations and the recommended bypass
capacitor values.
07714-
139
+VS
VIN
VOUT
ADA4858-3
+
–
10F
0.1F
RG
RF
Figure 38. Noninverting Gain Configuration
07714-
140
+VS
VIN
VOUT
ADA4858-3
–
+
10F
0.1F
RG
RF
Figure 39. Inverting Gain Configuration
DC-COUPLED VIDEO SIGNAL
The ADA4858-3 does not have a rail-to-rail output stage. The
output can be within 1 V of the rails. Having a charge pump on
board that can provide 3 V on a +5 V supply and 2 V on
+3.3 V supply makes this part excellent for video applications. In
dc-coupled applications, the black color has a 0 V voltage reference.
This means that the output voltage should be able to reach 0 V,
which is feasible with the presence of the charge pump. Figure 40
shows the schematic of a dc-coupled, single-supply application.
It is similar to the dual-supply application in which the input is
properly terminated with a 50 resistor to ground. The amplifier
itself is set at a gain of 2 to account for the input termination loss.
The choice of RF and RG should be carefully considered for
maximum flatness vs. power dissipation trade-off. In this case, the
flatness is over 90 MHz, which is more than the high definition
video requirement.
07714-
141
5V
VIN
VOUT
ADA4858-3
U1
+
–
C1
10F
C2
0.1F
R4
75
R3
249
R5
75
R2
249
R1
75
–VS
Figure 40. DC-Coupled, Single-Supply Schematic
MULTIPLE VIDEO DRIVER
In applications requiring that multiple video loads be driven
simultaneously, the ADA4858-3 can deliver 5 V supply operation.
Figure 41 shows the ADA4858-3 configured with two video
loads, and Figure 42 shows the two video load performances.
07714-
142
+VS
ADA4858-3
–
+
10F
0.1F
RG
301
RF
301
75
CABLE
VIN
75
VOUT1
75
CABLE
75
VOUT2
75
CABLE
75
Figure 41. Video Driver Schematic for Two Video Loads
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
1
10
100
1000
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
FREQUENCY (MHz)
RL = 150
RL = 75
VS = 5V
RF = 301
G = 2
VOUT = 2V p-p
07714-
040
Figure 42. Large Signal Frequency Response for Various Loads
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADA4858-3ACPZ-R2 制造商:Analog Devices 功能描述:OP AMP TRIPLE CURRENT FDBK 5.5V 16LFCSP EP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:IC OP-AMP 600MHZ 600V/ LFCSP-16 制造商:Analog Devices 功能描述:Single Supply High Spd RR Video Amp 制造商:Analog Devices 功能描述:IC, OP-AMP, 600MHZ, 600V/s, LFCSP-16, Op Amp Type:High Speed, No. of Amplifiers:3, Bandwidth:600MHz, Slew Rate:600V/s, Supply Voltage Range:3V to 5.5V, Amplifier Case Style:LFCSP, No. of Pins:16 , RoHS Compliant: Yes
ADA4858-3ACPZ-R7 功能描述:IC OPAMP CF TRPL LP 21MA 16LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 放大器類(lèi)型:通用 電路數(shù):1 輸出類(lèi)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(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
ADA4858-3ACPZ-RL 功能描述:IC OPAMP CF TRPL LP 21MA 16LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類(lèi)型:通用 電路數(shù):2 輸出類(lèi)型:滿(mǎn)擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
ADA4859-3 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Single-Supply, Fixed G = 2, High Speed, Video Amplifier with Charge Pump
ADA4859-3ACP-EBZ 功能描述:BOARD EVAL FOR ADA4859-3ACP RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:* 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱(chēng):82EBV2081
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