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a

ADG714/ADG715

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

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© Analog Devices, Inc.,

CMOS, Low Voltage

Serially Controlled, Octal SPST Switches

FUNCTIONAL BLOCK DIAGRAMS

ADG714

D1

D2

D3

D4

D5

D6

D7

D8

DOUT

S1

S2

S3

S4

S5

S6

S7

S8

INPUT SHIFT

REGISTER

SCLK DIN

SYNC RESET

ADG715

D1

D2

D3

D4

D5

D6

D7

D8

S1

S2

S3

S4

S5

S6

S7

S8

INTERFACE

LOGIC

SDA

SCL

A0

A1

RESET

FEATURES

ADG714 SPI™/QSPI™/MICROWIRE™-Compatible Interface

ADG715 I

2.7 V to 5.5 V Single Supply

2.5 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

GENERAL DESCRIPTION

The ADG714/ADG715 are CMOS, octal SPST (single-pole,

single-throw) switches controlled via either a 2- 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 uses 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 uses a 2-wire serial interface that is compatible

with the I

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

±2.5 V supply. The ADG714

and ADG715 are available in a small 24-lead TSSOP package.

PRODUCT HIGHLIGHTS

1. 2- or 3-wire serial interface

2. Single/dual supply operation. The ADG714 and ADG715

are fully specified and guaranteed with 3 V, 5 V, and

±2.5 V

supply rails.

3. Low on resistance, typically 2.5

Ω

4. Low leakage

5. Power-on reset

6. Small 24-lead TSSOP package

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corporation.

I

C

2013

781/461-3113

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