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參數(shù)資料
| 型號： | ADG1439BRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER DL 4X1 20TSSOP |
| 標準包裝： | 1,000 |
| 系列： | iCMOS® |
| 功能： | 多路復用器 |
| 電路： | 2 x 4:1 |
| 導通狀態(tài)電阻： | 21.5 歐姆 |
| 電壓電源： | 單/雙電源 |
| 電壓 - 電源，單路/雙路(±)： | 5 V ~ 16.5 V，±2.25 V ~ 8.25 V |
| 電流 - 電源： | 1nA |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 20-TSSOP |
| 包裝： | 帶卷 (TR) |
Serially Controlled, ±15 V/+12 V/±5 V, 8-Channel/
4-Channel, iCMOS Multiplexers/Matrix Switches
ADG1438/ADG1439
Rev. A
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
2009–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Serial interface up to 50 MHz
SDO daisy-chaining option
9.5 Ω on resistance @ 25°C
1.6 Ω on-resistance flatness
Fully specified at ±15 V/+12 V/±5 V
3 V logic-compatible inputs
Rail-to-rail operation
20-lead TSSOP and 20-lead, 4 mm × 4 mm LFCSP packages
APPLICATIONS
Relay replacement
Audio and video routing
Automatic test equipment
Data acquisition systems
Temperature measurement systems
Avionics
Battery-powered systems
Communication systems
Medical equipment
FUNCTIONAL BLOCK DIAGRAM
S1
SCLK SYNC DIN RESET
D
ADG1438
SDO
INPUT SHIFT
REGISTER
S8
08
496
-00
1
S1A
S4A
SCLK SYNC DIN RESET
DA
ADG1439
SDO
INPUT SHIFT
REGISTER
S1B
S4B
DB
08
49
6-
00
2
Figure 1.
Figure 2.
GENERAL DESCRIPTION
The ADG1438 and ADG1439 are CMOS analog matrix switches
with a serially controlled 3-wire interface. The ADG1438 is an
8-channel matrix switch, and the ADG1439 is a dual 4-channel
matrix switch.
The ADG1438/ADG1439 use a versatile 3-wire serial interface
that operates at clock rates of up to 50 MHz and is compatible
with standard SPI, QSPI, MICROWIRE, and DSP interface
standards. The output of the shift register, SDO, enables a
number of the ADG1438/ADG1439 parts to be daisy-chained.
On power-up, the internal shift register contains all zeros, and
all switches are in the off state.
Each switch conducts equally well in both directions when on,
making these parts suitable for both multiplexing and demulti-
plexing applications. Because each switch is turned on or off by
a separate bit, these parts can also be configured as a type of
switch array, where any, all, or none of the eight switches can be
closed at any time. The input signal range extends to the supply
rails. All channels exhibit break-before-make switching action,
preventing momentary shorting when switching channels.
The ultralow on resistance and on-resistance flatness of these
switches make them ideal solutions for data acquisition and
gain switching applications where low distortion is critical.
iCMOS construction ensures ultralow power dissipation,
making the parts ideally suited for portable and battery-
powered instruments.
PRODUCT HIGHLIGHTS
1.
50 MHz serial interface.
2.
9.5 Ω on resistance.
3.
1.6 Ω on-resistance flatness.
4.
3 V logic-compatible digital input, VINH = 2.0 V, VINL = 0.8 V.
Table 1. Related Devices
Part No.
Description
Low on resistance, parallel
interface, 4-/8-channel ±15 V
multiplexers
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