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参数资料
| 型号： | ADG528FBPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLEXER 8X1 20PLCC |
| 产品培训模块： | Switch Fundamentals |
| 标准包装： | 49 |
| 功能： | 多路复用器 |
| 电路： | 1 x 8:1 |
| 导通状态电阻： | 300 欧姆 |
| 电压电源： | 双电源 |
| 电压 - 电源，单路/双路(±)： | ±15V |
| 电流 - 电源： | 100nA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-LCC（J 形引线） |
| 供应商设备封装： | 20-PLCC（9x9） |
| 包装： | 管件 |
4-Channel/8-Channel
Fault-Protected Analog Multiplexers
ADG508F/ADG509F/ADG528F
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
www.analog.com
Fax: 781.461.3113
2001–2009 Analog Devices, Inc. All rights reserved.
FEATURES
Low on resistance (300 Ω typical)
Fast switching times
tON 250 ns maximum
tOFF 250 ns maximum
Low power dissipation (3.3 mW maximum)
Fault and overvoltage protection (40 V to +55 V)
All switches off with power supply off
Analog output of on channel clamped within power
supplies if an overvoltage occurs
Latch-up proof construction
Break-before-make construction
TTL and CMOS compatible inputs
APPLICATIONS
Existing multiplexer applications (both fault-protected and
nonfault-protected)
New designs requiring multiplexer functions
FUNCTIONAL BLOCK DIAGRAMS
S1
S8
A0
D
ADG508F/
ADG528F
A1 A2 EN
1 OF 8
DECODER
ADG528F
ONLY
WR
RS
00
03
5-
00
1
S1A
A0
DA
ADG509F
A1
S4A
S1B
S4B
DB
EN
1 OF 4
DECODER
00
03
5-
10
1
Figure 1.
GENERAL DESCRIPTION
The ADG508F, ADG509F, and ADG528F are CMOS analog
multiplexers, with the ADG508F and ADG528F comprising
eight single channels and the ADG509F comprising four
differential channels. These multiplexers provide fault protec-
tion. Using a series n-channel, p-channel, n-channel MOSFET
structure, both device and signal source protection is provided
in the event of an overvoltage or power loss. The multiplexer
can withstand continuous overvoltage inputs from 40 V to
+55 V. During fault conditions, the multiplexer input (or out-
put) appears as an open circuit and only a few nanoamperes of
leakage current will flow. This protects not only the multiplexer
and the circuitry driven by the multiplexer, but also protects
the sensors or signal sources that drive the multiplexer.
The ADG508F and ADG528F switch one of eight inputs to a
common output as determined by the 3-bit binary address lines
A0, A1, and A2. The ADG509F switches one of four differential
inputs to a common differential output as determined by the
2-bit binary address lines A0 and A1. The ADG528F has on-
chip address and control latches that facilitate microprocessor
interfacing. An EN input on each device is used to enable or
disable the device. When disabled, all channels are switched off.
PRODUCT HIGHLIGHTS
1.
Fault Protection.
The ADG508F/ADG509F/ADG528F can withstand
continuous voltage inputs from 40 V to +55 V. When a
fault occurs due to the power supplies being turned off, all
the channels are turned off and only a leakage current of a
few nanoamperes flows.
2.
On channel turns off while fault exists.
3.
Low RON.
4.
Fast switching times.
5.
Break-before-make switching.
Switches are guaranteed break-before-make so that input
signals are protected against momentary shorting.
6.
Trench isolation eliminates latch-up.
A dielectric trench separates the p and n-channel
MOSFETs thereby preventing latch-up.
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