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PDF AD8143 Data sheet ( Hoja de datos )
| Número de pieza | AD8143 | |
| Descripción | Triple Differential Receiver | |
| Fabricantes | Analog Devices | |
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Data Sheet
FEATURES
High speed
160 MHz large signal bandwidth
1000 V/µs slew rate at G = 1, VO = 2 V p-p
High CMRR: 65 dB at 10 MHz
High differential input impedance: 5 MΩ
Input common-mode range: ±10.5 V (±12 V supplies)
User-adjustable gain
Wide power supply range: +5 V to ±12 V
Fast settling: 8 ns to 1%
Disable feature
Low offset: ±3.4 mV on 5 V supply
2 on-chip comparators
Small packaging: 32-lead, 5 mm × 5 mm LFCSP
APPLICATIONS
RGB video receivers
Keyboard-video-mouse (KVM)
Unshielded twisted pair (UTP) receivers
High Speed, Triple Differential
Receiver with Comparators
AD8143
PIN CONFIGURATION
32 31 30 29 28 27 26 25
GND 1
24 GND
REF_G 2
23 OUT_B
FB_G 3
22 OUT_G
IN+_G 4
IN–_G 5
REF_R 6
FB_R 7
AD8143
B
A
21 OUT_R
20 VS+
19 COMPB_IN+
18 COMPB_IN–
GND 8
17 GND
9 10 11 12 13 14 15 16
GENERAL DESCRIPTION
The AD8143 is a triple, low cost, differential-to-single-
ended receiver specifically designed for receiving red-
green-blue (RGB) signals over twisted pair cable. It can
also be used for receiving any type of analog signal or
high speed data transmission. Two auxiliary comparators
are provided to receive digital or sync signals. The
AD8143 can be used in conjunction with the AD8133
and AD8134 triple, differential drivers to provide a
complete low cost solution for RGB over Category-5
UTP cable applications, including KVM.
The excellent common-mode rejection (65 dB at
10 MHz) of the AD8143 allows for the use of low cost
unshielded twisted pair cables in noisy environments.
Figure 1.
The AD8143 has a wide power supply range from single +5 V
supply to ±12 V, which allows for a wide common-mode range.
The wide common-mode input range of the AD8143 maintains
signal integrity in systems where the ground potential is a few
volts different between the drive and receive ends without the
use of isolation transformers.
The AD8143 is stable at a gain of 1. Closed-loop gain is easily
set using external resistors.
The AD8143 is available in a 5 mm × 5 mm, 32-lead LFCSP and
is rated to work over the extended industrial temperature range
of −40°C to +85°C.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. 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 ©2005–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
AD8143
Parameter
POWER-DOWN PERFORMANCE
Power-Down VIH
Power-Down VIL
Power-Down IIH
Power-Down IIL
Power-Down Assert Time
POWER SUPPLY
Operating Range
Quiescent Current, Positive Supply
Quiescent Current, Negative Supply
PSRR, Positive Supply
PSRR, Negative Supply
Data Sheet
Test Conditions/Comments Min Typ
Max Unit
PD = VCC
PD = GND
VS+ − 1.5
VS+ − 2.5
1.0
800
0.5
V
V
µA
µA
µs
4.5 24 V
44.0 57.5 mA
37.0 51.0 mA
DC −75 −71 dB
DC −82 −81 dB
Rev. A | Page 4 of 24
5 Page 
AD8143
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
GND 1
REF_G 2
FB_G 3
IN+_G 4
IN–_G 5
REF_R 6
FB_R 7
GND 8
AD8143
TOP VIEW
(Not to Scale)
24 GND
23 OUT_B
22 OUT_G
21 OUT_R
20 VS+
19 COMPB_IN+
18 COMPB_IN–
17 GND
Data Sheet
NOTES
1. THE EXPOSED PAD ON THE UNDERSIDE OF THE
DEVICE MUST BE CONNECTED TO GROUND.
Figure 3. Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
1, 8, 9,16, 17, 24, 25, 32
GND
2 REF_G
3 FB_G
4 IN+_G
5 IN−_G
6 REF_R
7 FB_R
10 IN+_R
11 IN−_R
12 COMPA_IN+
13 COMPA_IN−
14 COMPA_OUT
15 COMPB_OUT
18 COMPB_IN−
19 COMPB_IN+
20 VS+
21 OUT_R
22 OUT_G
23 OUT_B
26 VS−
27 DIS/PD
28 REF_B
29 FB_B
30 IN+_B
31 IN−_B
0 EPAD
Description
Signal Ground and Thermal Plane Connection (See the Applications Information Section)
Reference Input, Green Channel
Feedback Input, Green Channel
Noninverting Input, Green Channel
Inverting Input, Green Channel
Reference Input, Red Channel
Feedback Input, Red Channel
Noninverting Input, Red Channel
Inverting Input, Red Channel
Positive Input, Comparator A
Negative Input, Comparator A
Output, Comparator A
Output, Comparator B
Negative Input, Comparator B
Positive Input, Comparator B
Positive Power Supply
Output, Red Channel
Output, Green Channel
Output, Blue Channel
Negative Power Supply
Disable/Power Down
Reference Input, Blue Channel
Feedback Input, Blue Channel
Noninverting Input, Blue Channel
Inverting Input, Blue Channel
Exposed Pad. The exposed pad on the underside of the device must be connected to
ground (see the Applications Information section).
Rev. A | Page 10 of 24
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet AD8143.PDF ] | |
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