ADG3308_15 Datasheet, PDF (1/20 Pages) Analog Devices – Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators

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
V_CCA
V_CCY
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. D
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