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ADG3243 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADG3243은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 ADG3243 기능
기능 Individual Control Level Translator Bus Switch
제조업체 Analog Devices
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ADG3243 데이터시트, 핀배열, 회로
FEATURES
225 ps Propagation Delay through the Switch
4.5 Switch Connection between Ports
Data Rate 1.5 Gbps
2.5 V/3.3 V Supply Operation
Level Translation
3.3 V to 2.5 V
2.5 V to 1.8 V
Small Signal Bandwidth 710 MHz
8-Lead SOT-23 Package
APPLICATIONS
3.3 V to 2.5 V Voltage Translation
2.5 V to 1.8 V Voltage Translation
Bus Switching
Bus Isolation
Hot Swap
Hot Plug
Analog Switch Applications
2.5 V/3.3 V, 2-Bit, Individual Control
Level Translator Bus Switch
ADG3243
FUNCTIONAL BLOCK DIAGRAM
A0 B0
BE0
A1
BE1
B1
GENERAL DESCRIPTION
The ADG3243 is a 2.5 V or 3.3 V, 2-bit, 2-port digital switch
with individual channel control. It is designed on a low voltage
CMOS process, which provides low power dissipation yet gives
high switching speed and very low on resistance. This allows the
inputs to be connected to the outputs without additional propa-
gation delay or generating additional ground bounce noise.
The switches are enabled by means of the bus enable (BEx) input
signal. This digital switch allows a bidirectional signal to be
switched when ON. In the OFF condition, signal levels up to
the supplies are blocked.
This device is ideal for applications requiring level translation.
When operated from a 3.3 V supply, level translation from 3.3 V
inputs to 2.5 V outputs is allowed. Similarly, if the device is
operated from a 2.5 V supply and 2.5 V inputs are applied, the
device will translate the outputs to 1.8 V. This makes the device
suited to applications requiring level translation between different
supplies, such as converter to DSP/microcontroller interfacing.
PRODUCT HIGHLIGHTS
1. 3.3 V or 2.5 V supply operation.
2. Extremely low propagation delay through switch.
3. 4.5 switches connect inputs to outputs.
4. Level/voltage translation.
5. Tiny SOT-23 package.
REV. 0
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.




ADG3243 pdf, 반도체, 판매, 대치품
ADG3243
ABSOLUTE MAXIMUM RATINGS*
(TA = 25°C, unless otherwise noted.)
VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V
Digital Inputs to GND . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V
DC Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.5 V to +4.6 V
DC Output Current . . . . . . . . . . . . . . . . . 25 mA per Channel
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 206°C/
Lead Temperature, Soldering (10 sec) . . . . . . . . . . . . . 300°C
IR Reflow, Peak Temperature (<20 sec) . . . . . . . . . . . . 235°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Only one absolute
maximum rating may be applied at any one time.
Pin No.
1
2
3
4
5
6
7
8
PIN CONFIGURATION
8-Lead SOT-23
BE0 1
8 VCC
A0 2 ADG3243 7 BE1
A1 3 TOP VIEW 6 B0
(Not to Scale)
GND 4
5 B1
PIN FUNCTION DESCRIPTIONS
Mnemonic
BE0
A0
A1
GND
B1
B0
BE1
VCC
Description
Bus Enable (Active Low)
Port A0, Input or Output
Port A1, Input or Output
Ground Reference
Port B1, Input or Output
Port B0, Input or Output
Bus Enable (Active Low)
Positive Power Supply Voltage
BEx
L
H
Table I. Truth Table
Function
Ax = Bx, 3.3 V to 2.5 V/2.5 V to 1.8 V Level Shifting
Disconnect
Model
ADG3243BRJ-R2
ADG3243BRJ-REEL
ADG3243BRJ-REEL7
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
ORDERING GUIDE
Package Description
SOT-23 (Small Outline Transistor Package)
SOT-23 (Small Outline Transistor Package)
SOT-23 (Small Outline Transistor Package)
Package
RJ-8
RJ-8
RJ-8
Branding
SFA
SFA
SFA
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADG3243 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
REV. 0
–3–

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ADG3243 전자부품, 판매, 대치품
ADG3243
0
–0.2
–0.4
TA = 25؇C
ON OFF
CL = InF
–0.6
–0.8
VCC = 2.5V
–1.0
–1.2
–1.4
–1.6
–1.8
–2.0
0
VCC = 3.3V
0.5 1.0 1.5 2.0 2.5 3.0
VA/VB (V)
TPC 10. Charge Injection vs.
Source Voltage
0
TA = 25؇C
–10 VCC = 3.3V/2.5V
–20
VIN = 0dBm
N/W ANALYZER:
–30 RL = RS = 50
–40
–50
–60
–70
–80
–90
–100
0.1
1 10 100
FREQUENCY (MHz)
1000
TPC 13. Off Isolation vs. Frequency
0
–2 TA = 25؇C
VCC = 3.3V/2.5V
–4
VIN = 0dBm
N/W ANALYZER:
RL = RS = 50
–6
–8
–10
–12
–14
0.03 0.1 1 10 100
FREQUENCY (MHz)
1000
TPC 11. Bandwidth vs. Frequency
4.0
VCC = 3.3V
3.5
ENABLE
DISABLE
3.0
2.5
2.0 ENABLE
1.5
DISABLE
VCC = 2.5V
1.0
0.5
0
–40 –20
0
20 40 60
TEMPERATURE (؇C)
80
TPC 14. Enable/Disable Time
vs. Temperature
100
95
VCC = 3.3V
90 VIN = 1.5V p-p
85 20dB ATTENUATION
80
75
70
65
60
55
% EYE WIDTH = ((CLOCK PERIOD –
JITTER p-p)/CLOCK PERIOD) ؋ 100%
50
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9
DATA RATE (Gbps)
TPC 16. Eye Width vs. Data Rate;
PRBS 31
50mV/DIV
200ps/DIV
VCC = 3.3V
VIN = 1.5V p-p
20dB
ATTENUATION
TA = 25؇C
TPC 17. Eye Pattern; 1.5 Gbps,
VCC = 3.3 V, PRBS 31
0
–10
TA = 25؇C
VCC = 3.3V/2.5V
–20 VIN = 0dBm
N/W ANALYZER
–30 RL = RS = 50
–40
–50
–60
–70
–80
–90
–100
0.03 0.1
1.0 10 100
FREQUENCY (MHz)
1000
TPC 12. Crosstalk vs. Frequency
100
VCC = 3.3V
90 VIN = 1.5V p-p
80 20dB ATTENUATION
70
60
50
40
30
20
10
0
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9
DATA RATE (Gbps)
TPC 15. Jitter vs. Data Rate;
PRBS 31
20mV/DIV
200ps/DIV
VCC = 2.5V
VIN = 1.5V p-p
20dB
ATTENUATION
TA = 25؇C
TPC 18. Eye Pattern; 1.244 Gbps,
VCC = 2.5 V, PRBS 31
–6– REV. 0

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