adg3308 Analog Devices, Inc., adg3308 Datasheet

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adg3308

Manufacturer Part Number
adg3308
Description
Low Voltage 1.15 V To 5.5 V, Bidirectional, Logic Level Translators
Manufacturer
Analog Devices, Inc.
Datasheet

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FEATURES
Bidirectional logic level translation
Operate from 1.15 V to 5.5 V
Low quiescent current < 1 μA
No direction pin
APPLICATIONS
Low voltage ASIC level translation
Smart card readers
Cell phones and cell phone cradles
Portable communication devices
Telecommunications equipment
Network switches and routers
Storage systems (SAN/NAS)
Computing/server applications
GPS
Portable POS systems
Low cost serial interfaces
GENERAL DESCRIPTION
The ADG3308/ADG3308-1 are bidirectional logic level translators
that contain eight bidirectional channels. They can be used in
multivoltage digital system applications such as a data transfer
between a low voltage DSP controller and a higher voltage device.
The internal architecture allows the device to perform bidirec-
tional logic level translation without an additional signal to set
the direction in which the translation takes place.
The voltage applied to V
the device, and V
operation, V
patible logic signals applied to the A side of the device appear as
V
logic levels applied to the Y side of the device appear as V
compatible logic levels on the A side.
The enable pin (EN) provides three-state operation on both the
A side and the Y side pins. When the EN pin is pulled low, the
terminals on both sides of the device are in the high impedance
state. For normal operation, EN should be driven high.
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. Specifications subject to change without notice. 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.
CCY
-compatible levels on the Y side. Similarly, V
CCA
must always be less than V
CCY
sets the levels on the Y side. For proper
CCA
sets the logic levels on the A side of
CCY
. The V
CCY
-compatible
CCA
Low Voltage, 1.15 V to 5.5 V, 8-Channel
-com-
CCA
Bidirectional Logic Level Translators
-
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ADG3308 is available in compact 20-lead TSSOP and
20-lead LFCSP, and the ADG3308-1 is available in 20-ball
WLCSP. The EN pin is referred to the V
the ADG3308, and to the V
The ADG3308 is guaranteed to operate over the 1.15 V to 5.5 V
supply voltage range and the extended −40°C to +85°C tempera-
ture range. The ADG3308-1 is guaranteed to operate over the
1.15 V to 5.5 V supply voltage range and the −25°C to +85°C
temperature range.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
Bidirectional logic level translation.
Fully guaranteed over the 1.15 V to 5.5 V supply range.
No direction pin.
Packages: 20-lead TSSOP, 20-lead LFCSP (ADG3308), and
20-ball WLCSP (ADG3308-1).
FUNCTIONAL BLOCK DIAGRAM
EN
A1
A2
A3
A4
A5
A6
A7
A8
ADG3308/ADG3308-1
ADG3308/ADG3308-1
V
©2006 Analog Devices, Inc. All rights reserved.
CCA
CCA
GND
Figure 1.
supply voltage for the ADG3308-1.
V
CCY
CCY
supply voltage for
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
www.analog.com

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adg3308 Summary of contents

Page 1

... LFCSP, and the ADG3308-1 is available in 20-ball WLCSP. The EN pin is referred to the V the ADG3308, and to the V The ADG3308 is guaranteed to operate over the 1. 5.5 V supply voltage range and the extended −40°C to +85°C tempera- ture range. The ADG3308-1 is guaranteed to operate over the 1. 5.5 V supply voltage range and the − ...

Page 2

... ADG3308/ADG3308-1 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Test Circuits..................................................................................... 12 Terminology .................................................................................... 15 REVISION HISTORY 7/06—Rev Rev. A Added WLCSP Package…………………………..……Universal Added Figure 4… ...

Page 3

... Y Side 3 Input High Voltage 3 Input Low Voltage Output High Voltage Output Low Voltage 3 Capacitance Leakage Current Enable (EN) Input High Voltage 3 ADG3308 (TSSOP, LFCSP) ADG3308-1 (WLCSP) 3 Input Low Voltage ADG3308 (TSSOP, LFCSP) ADG3308-1 (WLCSP) Leakage Current 3 Capacitance 3 Enable Time 3 SWITCHING CHARACTERISTICS 3.3 V ± 0.3 V ≤ V ≤ ...

Page 4

... ADG3308/ADG3308-1 Parameter Part-to-Part Skew Y→A Translation Propagation Delay Rise Time Fall Time Maximum Data Rate Channel-to-Channel Skew Part-to-Part Skew 1. 1.3 V ≤ V ≤ 3.3 V ± 0.3 V CCA CCY CCY A→Y Translation Propagation Delay Rise Time Fall Time Maximum Data Rate ...

Page 5

... CCY 5 CCA CCY CCY V V/V , CCY A CCA Y CCY 5 CCA CCY CCY 5 HiZA CCA CCY 5 HiZY CCA CCY Rev Page ADG3308/ADG3308-1 2 Min Typ Max Unit 1.15 5.5 V 1.65 5.5 V 0.17 1 μA 0.27 1 μA 0.1 1 μA 0.1 1 μA ...

Page 6

... ADG3308/ADG3308-1 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V to GND CCA V to GND CCY Digital Inputs (A) Digital Inputs ( GND Operating Temperature Range Extended Industrial (B Version) TSSOP and LFCSP Industrial (B Version) WLCSP Storage Temperature Range Junction Temperature θ ...

Page 7

... Power Supply. Power supply voltage input for the Y1 I/O pin to the Y8 I/O pin (1.65 V ≤ V ≤ 5.5 V). CCY Rev Page ADG3308/ADG3308-1 BALL a1 INDICATOR CCY CCA GND EN A8 ADG3308-1 TOP VIEW (Not to Scale) (BALLS AT THE BOTTOM) Figure 4. 20-Ball WLCSP ...

Page 8

... ADG3308/ADG3308-1 TYPICAL PERFORMANCE CHARACTERISTICS 1 25° CHANNEL 0 50pF L 0 3.3V, V CCA CCY 0.7 0.6 0.5 0.4 V CCA 0.3 0.2 0 1.2V, V CCA DATA RATE (Mbps) Figure 5. I vs. Data Rate (A→Y Level Translation) CCA 25° CHANNEL 50pF 3.3V CCA CCY ...

Page 9

... Figure 16. Fall Time vs. Capacitive Load at Pin Y (A→Y Level Translation) Rev Page ADG3308/ADG3308-1 = 25°C 50Mbps = 3. 30Mbps 20Mbps 10Mbps 5Mbps CAPACITIVE LOAD (pF) Figure 14. I vs. Capacitive Load at Pin A CCA for Y→A (5 V→3.3 V) Level Translation = 25° ...

Page 10

... ADG3308/ADG3308 25° CHANNEL 9 DATA RATE = 50kbps 1.2V 1.8V CCA CCY CCA CCA CAPACITIVE LOAD (pF) Figure 17. Rise Time vs. Capacitive Load at Pin A (Y→A Level Translation) 4 25° CHANNEL 3.5 DATA RATE = 50kbps 3.0 2 1.2V 1.8V CCA ...

Page 11

... Figure 26. Eye Diagram at A Output (3.3 V→1.8 V Level Translation, 50 Mbps) 1V/DIV Figure 27. Eye Diagram at Y Output (3.3 V→5 V Level Translation, 50 Mbps) 800mV/DIV Figure 28. Eye Diagram at A Output (5 V→3.3 V Level Translation, 50 Mbps) Rev Page ADG3308/ADG3308 25°C A DATA RATE = 50Mbps C = 15pF L 1 CHANNEL ...

Page 12

... CCY 0.1µ CAPACITANCE METER Rev Page ADG3308/ V ADG3308-1 V CCA CCY 0.1µ GND Figure 32. Three-State Leakage Current at Pin Y ADG3308 ADG3308-1 CCY CCA 0.1µ GND Figure 33. EN Pin Leakage Current EN ADG3308/ V ADG3308-1 CCA V CCY ...

Page 13

... Figure 36. Enable Time Rev Page ADG3308/ADG3308 CCY Y X CAPACITANCE METER V ADG3308/ CCY ADG3308-1 + 0.1µF 10µF 1MΩ 50pF 1MΩ EN GND V CCY ADG3308/ ADG3308-1 + 0.1µF 10µ GND V CCY CCA CCY CCY CCA 0V V CCY 0V V ...

Page 14

... 50pF 15pF 50% P, A→ 90% 50% t 10% R, A→Y Figure 38. Switching Characteristics (Y→A Level Translation) Rev Page ADG3308/ V ADG3308-1 V CCA CCY + + 10µF 0.1µF 10µ 50Ω GND Y→A P, Y→ ...

Page 15

... CCY I HiZA Y → V supply current during three-state mode (EN = 0). CCA I HiZY V supply current during three-state mode (EN = 0). CCY Y direction. → Y direction. → Rev Page ADG3308/ADG3308-1 Y → Y direction. → Y direction. → A direction. → A direction. → A → A direction. → A direction. → ...

Page 16

... In this mode, the current consumption from both the V CCA power, which is critical, especially on battery-operated systems. Y The EN input pin can only be driven with V N logic levels for the ADG3308, whereas the ADG3308-1 can be driven with either V POWER SUPPLIES T3 For proper operation of the ADG3308/ADG3308-1, the voltage applied to the V age applied to V ...

Page 17

... The load capacitance used when translating in the A→Y direction and 15 pF when translating in the Y→A direction. dissipation (the junction temperature does not exceed the value specified under the Absolute Maximum Ratings section). Table 5 supply voltage combi- shows the guaranteed data rates at which the ADG3308/ ADG3308-1 can operate in both directions (A translation) for various V ) and power OH 2 ...

Page 18

... Figure 40. 1 3.3 V 8-Bit Level Translation Circuit When the application requires level translation between a microprocessor and multiple peripheral devices, the ADG3308/ ADG3308-1 I/O pins can be three-stated by setting This feature allows the ADG3308/ADG3308-1 to share the data buses with other devices without causing contention issues. ...

Page 19

... ADG3308BRUZ-REEL −40°C to +85°C ADG3308BRUZ-REEL7 1 −40°C to +85°C 1 ADG3308BCPZ-REEL −40°C to +85°C 1 ADG3308BCPZ-REEL7 −40°C to +85°C 1 ADG3308BCBZ-1-R2 −25°C to +85°C 1 ADG3308BCBZ-1-REEL −25°C to +85° Pb-free part. 4.00 BSC SQ PIN 1 INDICATOR TOP VIEW 12° MAX 1 ...

Page 20

... ADG3308/ADG3308-1 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04865-0-7/06(A) Rev Page ...

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