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PDF ADG3308-1 Data sheet ( Hoja de datos )
| Número de pieza | ADG3308-1 | |
| Descripción | 8-Channel Bidirectional Logic Level Translators | |
| Fabricantes | Analog Devices | |
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Data Sheet
Low Voltage, 1.15 V to 5.5 V, 8-Channel
Bidirectional Logic Level Translators
ADG3308/ADG3308-1
FEATURES
Bidirectional logic level translation
Operates 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 level translators
containing 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
bidirectional level translation without an additional signal to set
the direction in which the translation takes place.
The voltage applied to VCCA sets the logic levels on the A side
of the device, and VCCY sets the levels on the Y side. For proper
operation, VCCA must always be less than VCCY. The VCCA
compatible logic signals applied to the A side of the device
appear as VCCY compatible levels on the Y side. Similarly, VCCY
compatible logic levels applied to the Y side of the device appear
as VCCA 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.
FUNCTIONAL BLOCK DIAGRAM
VCCA
VCCY
ADG3308/ADG3308-1
A1 Y1
A2 Y2
A3 Y3
A4 Y4
A5 Y5
A6 Y6
A7 Y7
A8 Y8
EN
GND
Figure 1.
The ADG3308 is available in a compact 20-lead TSSOP and
a 20-lead LFCSP. The ADG3308-1 is available in a 20-ball
WLCSP. The EN pin is referred to the VCCY supply voltage
for the ADG3308 and to the VCCA supply voltage for the
ADG3308-1.
The ADG3308/ADG3308-1 are guaranteed to operate over the
1.15 V to 5.5 V supply voltage range and the extended −40°C to
+85°C temperature range.
PRODUCT HIGHLIGHTS
1. Bidirectional logic level translation.
2. Fully guaranteed over the 1.15 V to 5.5 V supply range.
3. No direction pin.
4. Packages: 20-lead TSSOP and 20-lead LFCSP (ADG3308)
and 20-ball WLCSP (ADG3308-1).
Rev. E
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  
Data Sheet
ADG3308/ADG3308-1
Parameter
2.5 V ± 0.2 V ≤ VCCA ≤ VCCY, VCCY = 3.3 V ± 0.3 V
A→Y Level Translation
Propagation Delay
Rise Time
Fall Time
Maximum Data Rate
Channel-to-Channel Skew
Part-to-Part Skew
Y→A Level Translation
Propagation Delay
Rise Time
Fall Time
Maximum Data Rate
Channel-to-Channel Skew
Part-to-Part Skew
POWER REQUIREMENTS
Power Supply Voltages
Quiescent Power Supply Current
Three-State Mode Power Supply Current
Symbol Conditions
Min
tP, A→Y
tR, A→Y
tF, A→Y
DMAX, A→Y
tSKEW, A→Y
tPPSKEW, A→Y
tP, Y→A
tR, Y→A
tF, Y→A
DMAX, Y→A
tSKEW, Y→A
tPPSKEW, Y→A
RS = RT = 50 Ω, CL = 50 pF, see Figure 37
RS = RT = 50 Ω, CL = 15 pF, see Figure 38
60
60
VCCA
VCCY
ICCA
ICCY
IHIGH-ZA
IHIGH-ZY
VCCA ≤ VCCY
VA = 0 V or VCCA, VY = 0 V or VCCY,
VCCA = VCCY = 5.5 V, EN = VCCY
VA = 0 V or VCCA, VY = 0 V or VCCY,
VCCA = VCCY = 5.5 V, EN = VCCY
VCCA = VCCY = 5.5 V, EN = 0
VCCA = VCCY = 5.5 V, EN = 0
1.15
1.65
1 Temperature range is −40°C to +85°C (B Version) for the TSSOP, the LFCSP, the WLCSP, and the backside-coated WLCSP.
2 All typical values are at TA = 25°C, unless otherwise noted.
3 Guaranteed by design; not subject to production test.
Typ2 Max
7 10
2.5 4
25
1.5 2
4
58
14
35
23
3
5.5
5.5
0.17 1
0.27 1
0.1 1
0.1 1
Unit
ns
ns
ns
Mbps
ns
ns
ns
ns
ns
Mbps
ns
ns
V
V
μA
μA
μA
μA
Rev. E | Page 5 of 20
5 Page 
Data Sheet
TA = 25°C
DATA RATE = 25Mbps
CL = 50pF
1 CHANNEL
400mV/DIV
5ns/DIV
Figure 23. Eye Diagram at Y Output
(1.2 V→1.8 V Level Translation, 25 Mbps)
TA = 25°C
CL = 50pF
DATA RATE = 25Mbps 1 CHANNEL
200mV/DIV
5ns/DIV
Figure 24. Eye Diagram at A Output
(1.8 V→1.2 V Level Translation, 25 Mbps)
TA = 25°C
CL = 50pF
DATA RATE = 50Mbps 1 CHANNEL
500mV/DIV
3ns/DIV
Figure 25. Eye Diagram at Y Output
(1.8 V→3.3 V Level Translation, 50 Mbps)
ADG3308/ADG3308-1
TA = 25°C
DATA RATE = 50Mbps
CL = 15pF
1 CHANNEL
400mV/DIV
3ns/DIV
Figure 26. Eye Diagram at A Output
(3.3 V→1.8 V Level Translation, 50 Mbps)
TA = 25°C
DATA RATE = 50Mbps
CL = 50pF
1 CHANNEL
1V/DIV
3ns/DIV
Figure 27. Eye Diagram at Y Output
(3.3 V→5 V Level Translation, 50 Mbps)
TA = 25°C
DATA RATE = 50Mbps
CL = 15pF
1 CHANNEL
800mV/DIV
3ns/DIV
Figure 28. Eye Diagram at A Output
(5 V→3.3 V Level Translation, 50 Mbps)
Rev. E | Page 11 of 20
11 Page | ||
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| PDF Descargar | [ Datasheet ADG3308-1.PDF ] | |
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