ADG3241 AD [Analog Devices], ADG3241 Datasheet

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ADG3241

Manufacturer Part Number
ADG3241
Description
2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66
Manufacturer
AD [Analog Devices]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
ADG3241BKSZ-REEL7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
GENERAL DESCRIPTION
The ADG3241 is a 2.5 V or 3.3 V, single digital switch. 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 input to be connected to the output
without additional propagation delay or generating additional
ground bounce noise.
The switch is enabled by means of the bus enable (BE) 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. In addition to this, a
level translating select pin (SEL) is included. When SEL is low,
V
3.3 V inputs and 1.8 V outputs. This makes the device suited to
applications requiring level translation between different supplies,
such as converter to DSP/microcontroller interfacing.
REV. A
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 owners.
CC
FEATURES
225 ps Propagation Delay through the Switch
4.5
Data Rate 1.5 Gbps
2.5 V/3.3 V Supply Operation
Selectable Level Shifting/Translation
Level Translation
Small Signal Bandwidth 770 MHz
Tiny 6-Lead SC70 Package and 6-Lead SOT-66 Package
APPLICATIONS
3.3 V to 1.8 V Voltage Translation
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
is reduced internally, allowing for level translation between
3.3 V to 2.5 V
3.3 V to 1.8 V
2.5 V to 1.8 V
Switch Connection between Ports
Level Translator Bus Switch in SOT-66
PRODUCT HIGHLIGHTS
1. 3.3 V or 2.5 V supply operation.
2. Extremely low propagation delay through switch.
3. 4.5 Ω switches connect inputs to outputs.
4. Level/voltage translation.
5. Tiny SC70 package and SOT-66 package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
FUNCTIONAL BLOCK DIAGRAM
BE
2.5 V/3.3 V, 1-Bit, 2-Port
A
© 2004 Analog Devices, Inc. All rights reserved.
ADG3241
www.analog.com
B

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ADG3241 Summary of contents

Page 1

... Hot Plug Analog Switch Applications GENERAL DESCRIPTION The ADG3241 3.3 V, single digital switch 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 input to be connected to the output without additional propagation delay or generating additional ground bounce noise ...

Page 2

... ADG3241–SPECIFICATIONS Parameter DC ELECTRICAL CHARACTERISTICS Input High Voltage Input Low Voltage Input Leakage Current OFF State Leakage Current ON State Leakage Current Maximum Pass Voltage 3 CAPACITANCE A Port Off Capacitance B Port Off Capacitance A, B Port On Capacitance Control Input Capacitance 3 SWITCHING CHARACTERISTICS Propagation Delay ...

Page 3

... 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 ADG3241 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 ...

Page 4

... TOP VIEW A 3 (Not to Scale) Temperature Model Range ADG3241BKS-REEL –40°C to +85°C ADG3241BKS-REEL7 –40°C to +85°C ADG3241BKS-500RL7 –40°C to +85°C ADG3241BRY-REEL7 –40°C to +85°C V Positive Power Supply Voltage. CC GND Ground (0 V) Reference. V Minimum Input Voltage for Logic 1. ...

Page 5

... Voltage for Different Temperatures 2 2.7V CC SEL = – 1 2. 2.3V CC 1.0 0 0.5 1.0 1.5 2.0 2 TPC 7. Pass Voltage vs REV. A Typical Performance Characteristics–ADG3241 2. SEL = 2. 2. 0.5 1.0 1.5 2.0 2.5 3 TPC 2. On Resistance vs. Input Voltage ...

Page 6

... ADG3241 3 2 2.0 = 3.3V; SEL = 1.5 = SEL = 3. 1.0 0.5 = SEL = 2. 0.02 0.04 0.06 0.08 0.10 I (A) O TPC 10. Output Low Characteristic –1 –2 – – 3.3V/2.5V CC –5 SEL = 0dBm –6 IN N/W ANALYZER: – –8 0.03 0.1 1.0 10 100 1000 FREQUENCY (MHz) TPC 13. Bandwidth vs. Frequency 4 ...

Page 7

... V = 3.3V 20dB CC 50mV/DIV SEL = 3.3V ATTENUATION 200ps/DIV V = 1.5V p TPC 19. Eye Pattern; 1.5 Gbps 3.3 V, PRBS 31 CC REV 2.5V 20dB CC 20mV/DIV SEL = 2.5V ATTENUATION 200ps/DIV V = 1.5V p TPC 20. Eye Pattern; 1.244 Gbps 2.5 V, PRBS 31 CC –7– ADG3241 ...

Page 8

... ADG3241 TIMING MEASUREMENT INFORMATION For the following load circuit and waveforms, the notation that is used and and OUT OUT IN PULSE DUT GENERATOR R T NOTES t PULSE GENERATOR FOR ALL PULSES: 2.5ns, R FREQUENCY 10MHz. C INCLUDES BOARD, STRAY, AND LOAD CAPACITANCES. ...

Page 9

... CC 3 1.8 V Translation The ADG3241 offers the option of interfacing between a 3.3 V device and a 1.8 V device. This is possible through use of the SEL pin. The SEL pin is an active low control pin. SEL acti- vates internal circuitry in the ADG3241 that allows voltage 2 ...

Page 10

... Figure 11. Location of Bus Switched in a Bus Isolation Application Hot Plug and Hot Swap Isolation The ADG3241 is suitable for hot swap and hot plug applications. The output signal of the ADG3241 is limited to a voltage that is below the V supply, as shown in Figures 6, 8, and 10. Therefore CC the switch acts like a buffer to take the impact from hot insertion, protecting vital and expensive chipsets from damage ...

Page 11

... BSC 1.00 1.10 MAX 0.90 0.70 0.22 0.08 0.30 SEATING 0.15 PLANE 0.10 COPLANARITY COMPLIANT TO JEDEC STANDARDS MO-203AB 6-Lead Small Outline Transistor Package [SOT-66] (RY-6-1) Dimensions shown in millimeters 1.70 1.66 1.50 0.26 0.19 0. 1.70 1.65 TOP VIEW 1.50 PIN 0.10 NOM 0.05 MIN 12 MAX 0.60 0.57 0.53 SEATING PLANE 0.34 MAX 0.27 NOM –11– ADG3241 0.46 0. 0.26 0 0.20 MIN BOTTOM VIEW 0.30 0.23 0.10 0.50 BSC 0.25 MAX 0.17 MIN ...

Page 12

... ADG3241 Revision History Location 10/04—Data Sheet changed from REV REV. A. Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to PRODUCT HIGHLIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Changes to PIN CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Changes to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Updated OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 –12– Page REV. A ...

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