參數(shù)資料
型號(hào): AD8134ACPZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 1/20頁
文件大?。?/td> 0K
描述: IC OPAMP DIFF TRPL LDIST 24LFCSP
標(biāo)準(zhǔn)包裝: 5,000
放大器類型: 差分
電路數(shù): 3
輸出類型: 差分
轉(zhuǎn)換速率: 1600 V/µs
-3db帶寬: 450MHz
電流 - 輸入偏壓: 67µA
電壓 - 輸入偏移: 4000µV
電流 - 電源: 31mA
電流 - 輸出 / 通道: 90mA
電壓 - 電源,單路/雙路(±): 4.5 V ~ 12 V,±2.25 V ~ 6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 24-LFCSP-VQ(4x4)
包裝: 帶卷 (TR)
Triple Differential Driver
With Sync-On-Common-Mode
AD8134
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
FEATURES
Triple high speed differential driver
225 MHz, 3 dB large signal bandwidth
450 MHz, 3 dB small signal bandwidth
Easily drives 1.4 V p-p video signal into doubly terminated
100 Ω UTP cable
1600 V/μs slew rate
Fixed internal gain of 2
Internal common-mode feedback network
Output balance error 60 dB @ 50 MHz
On-chip sync-on-common-mode circuitry
Output pull-down feature for line isolation
Differential input and output
Differential-to-differential or single-ended-to-differential
operation
High isolation between amplifiers: 80 dB @ 10 MHz
Low distortion: 64 dB SFDR @ 10 MHz on 5 V supply,
RL, dm = 200 Ω
Low offset: 3 mV typical output-referred on 5 V supply
Low power: 26.5 mA @ 5 V for three drivers and sync circuitry
Wide supply voltage range: +5 V to ±5 V
Available in space-saving packaging: 4 mm × 4 mm LFCSP
APPLICATIONS
Keyboard-video-mouse (KVM) networking
GENERAL DESCRIPTION
The AD8134 is a major advancement beyond using discrete
op amps for driving differential RGB signals over twisted pair
cable. The AD8134 is a triple, low cost differential or single-
ended input to differential output driver, and each amplifier has
a fixed gain of 2 to compensate for the attenuation of the line
termination resistors. The AD8134 is specifically designed for
RGB signals but can be used for any type of analog signals or
high speed data transmission. The AD8134 is capable of driving
either Category 5 (Cat-5) unshielded twisted pair (UTP) cable
or differential printed circuit board transmission lines with
minimal signal degradation.
A unique feature that allows the user to transmit balanced
horizontal and vertical video sync signals over the three
common-mode channels with minimal electromagnetic
interference (EMI) radiation is included on-chip.
The outputs of the AD8134 can be set to a low voltage state that
allows easy differential multiplexing of multiple drivers on the
same twisted pair cable, when used with external series diodes.
FUNCTIONAL BLOCK DIAGRAM
AD8134
OPD
1
VS– 2
–IN R
3
+IN R
4
VS– 5
SYNC LEVEL
VS+ (SYNC)
–IN B
+IN B
VS–
18
17
16
15
14
–OUT R
6
–OUT B
13
V
S+
–IN
G
+I
N
G
V
S–
(S
Y
NC)
V
SYN
C
24
23
22
21
20
H
SYN
C
19
+O
UT
R
V
S+
+O
UT
G
–O
UT
G
V
S+
7
8
9
10
11
+O
UT
B
12
×2
R
G
B
04770-001
Figure 1.
FREQUENCY (MHz)
OUTPUT
BALANCE
ERROR
(
d
B)
0
–20
–10
–40
–30
–60
–50
–80
–70
–100
–90
1
10
100
500
VS = +5V
VS = ±5V
ΔV
OUT, dm = 2V p-p
ΔV
OUT, cm/ΔVOUT, dm
04770-
018
Figure 2. Output Balance vs. Frequency
The AD8134 driver is a natural complement to the AD8143,
AD8129, and AD8130 differential receivers.
Manufactured on the Analog Devices next generation XFCB
bipolar process, the AD8134 has a large signal bandwidth of
225 MHz and a slew rate of 1600 V/μs. The AD8134 has an
internal common-mode feedback feature that provides output
gain and phase matching that is balanced to 60 dB at 50 MHz,
suppressing harmonics and reducing radiated EMI.
The AD8134 is available in a 24-lead LFCSP and can operate
over the 40°C to +85°C extended industrial temperature range.
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