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ADG715 Datasheet

  • ADG715

  • CMOS, Low Voltage Serially Controlled, Octal SPST Switches

  • 497.90KB

  • 17页

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a
CMOS, Low Voltage
Serially-Controlled, Octal SPST Switches
ADG714/ADG715
FUNCTIONAL BLOCK DIAGRAMS
ADG714
S1
S2
S3
S4
S5
S6
S7
S8
INPUT SHIFT
REGISTER
D1
D2
D3
D4
D5
D6
D7
D8
DOUT
S1
S2
S3
S4
S5
S6
S7
S8
INTERFACE
LOGIC
RESET
SCLK DIN
SYNC RESET
SDA
SCL
A0
A1
FEATURES
ADG714 SPI鈩?QSPI鈩?MICROWIRE鈩?Compatible Interface
ADG715 I
2
C鈩?Compatible Interface
2.7 V to 5.5 V Single Supply
3 V Dual Supply
2.5 On Resistance
0.6 On Resistance Flatness
100 pA Leakage Currents
Octal SPST
Power-On Reset
Fast Switching Times
TTL/CMOS-Compatible
Small TSSOP Package
APPLICATIONS
Data Acquisition Systems
Communication Systems
Relay Replacement
Audio and Video Switching
ADG715
D1
D2
D3
D4
D5
D6
D7
D8
GENERAL DESCRIPTION
The ADG714/ADG715 are CMOS, octal SPST (single-pole,
single-throw) switches controlled via either a two- or 3-wire
serial interface. On resistance is closely matched between switches
and very flat over the full signal range. Each switch conducts
equally well in both directions and the input signal range extends
to the supplies. Data is written to these devices in the form of
8 bits, each bit corresponding to one channel.
The ADG714 utilizes a 3-wire serial interface that is compatible
with SPI , QSPI and MICROWIRE and most DSP interface
standards. The output of the shift register DOUT enables a
number of these parts to be daisy chained.
The ADG715 utilizes a 2-wire serial interface that is compatible
with the I
2
C interface standard. The ADG715 has four hard wired
addresses, selectable from two external address pins (A0 and A1).
This allows the 2 LSBs of the 7-bit slave address to be set by the
user. A maximum of four of these devices may be connected to
the bus.
On power-up of these devices, all switches are in the OFF con-
dition, and the internal registers contain all zeros.
Low power consumption and operating supply range of 2.7 V to
5.5 V make this part ideal for many applications. These parts
may also be supplied from a dual
卤
3 V supply. The ADG714
and ADG715 are available in a small 24-lead TSSOP package.
PRODUCT HIGHLIGHTS
1. 2-3-Wire Serial Interface.
2. Single/Dual Supply Operation. The ADG714 and ADG715
are fully speci铿乪d and guaranteed with 3 V, 5 V, and
卤
3 V
supply rails.
3. Low On Resistance, typically 2.5
鈩?
4. Low Leakage.
5. Power-On Reset.
6. Small 24-lead TSSOP package.
I
2
C is a trademark of Philips Corporation.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 2000

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