參數(shù)資料
型號(hào): ADG3247BCP
廠商: ANALOG DEVICES INC
元件分類: 通用總線功能
英文描述: 2.5 V/3.3 V, 16-Bit, 2-Port Level Translating, Bus Switch
中文描述: DUAL 8-BIT DRIVER, TRUE OUTPUT, QCC40
封裝: 6 X 6 MM, MO-220-VJJD-2, CSP-40
文件頁數(shù): 1/12頁
文件大小: 204K
代理商: ADG3247BCP
Preliminary Technical Data
PRELIMINARY TECHNICAL DATA
REV. PrD
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.
ADG3247
2.5 V/3.3 V, 16-Bit, 2-Port
Level Translating, Bus Switch
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
2003 Analog Devices, Inc. All rights reserved.
www.analog.com
FEATURES
225 ps Propagation Delay through the Switch
4.5
Switch Connection between Ports
Data Rate 1.244 Gbps
2.5 V/3.3 V Supply Operation
Selectable Level Shifting/Translation
Small Signal Bandwidth 610 MHz
Level Translation
3.3 V to 2.5 V
3.3 V to 1.8 V
2.5 V to 1.8 V
40-Lead 6 mm 6 mm LFCSP and 38-Lead TSSOP
Packages
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 Plug
Hot Swap
Analog Switching Applications
FUNCTIONAL BLOCK DIAGRAM
A7
B7
BE1
A0
B0
A15
B15
BE2
A8
B8
GENERAL DESCRIPTION
The ADG3247 is a 2.5 V or 3.3 V 16-bit, 2-port digital switch.
It is designed on Analog Devices’ low voltage CMOS process,
which provides low power dissipation yet gives high switching
speed and very low on resistance, allowing inputs to be connected
to outputs without additional propagation delay or generating
additional ground bounce noise.
The ADG3247 is organized as dual 8-bit bus switches with
separate Bus Enable (
BEx
) inputs. This allows the device to be
used as two 8-bit digital switches or one 16-bit bus switch. These
bus switches allow bidirectional signals 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 occurs. 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, the ADG3247
has a level translating select pin (
SEL
). When
SEL
is low, V
CC
is
reduced internally, allowing for level translation between 3.3 V
inputs and 1.8 V outputs. This makes the device suited to appli-
cations 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. 40-lead 6 mm 6 mm LFCSP and 38-lead TSSOP packages
相關(guān)PDF資料
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