CMOS, Low Voltage

Serially Controlled, Octal SPST Switches

Data Sheet

ADG714/ADG715

Rev. E

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FEATURES

SPI/QSPI/MICROWIRE-compatible interface (ADG714)

ADG715: I2C-compatible interface (ADG715)

2.7 V to 5.5 V single supply

±2.5 V dual supply

2.5 Ω on resistance

0.6 Ω on resistance flatness

0.1 nA leakage currents

Octal SPST

Power-on reset

Fast switching times

TTL/CMOS compatible

24-lead TSSOP and 24-lead LFCSP

APPLICATIONS

Data acquisition systems

Communication systems

Relay replacement

Audio and video switching

GENERAL DESCRIPTION

The ADG714/ADG715 are complementary metal-oxide

semiconductor (CMOS), octal single-pole, single-throw (SPST)

switches, controlled via either a 2- or 3-wire serial interface. On

resistance is closely matched between the switches and is 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 serial peripheral interface (SPI), QSPI™, MICROWIRE™

interface standards, and most digital signal processing (DSP)

interface standards. The output of the shift register DOUT

enables a number of these devices to be daisy-chained.

The ADG715 uses a 2-wire serial interface that is compatible

with the I2C interface standard. The ADG715 has four hardwired

addresses, selectable from two external address pins (A0 and A1).

The pins allow the two 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

condition, and the internal registers contain all zeros.

A low power consumption and operating supply range of 2.7 V

to 5.5 V make these devices ideal for many applications. These

devices can also be supplied from a dual ±2.5 V supply. The

ADG714 is available in a 24-lead TSSOP and a 24-lead LFCSP,

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

Figure 1. ADG714 Functional Block Diagram

ADG715

D1

D2

D3

D4

D5

D6

D7

D8

S1

S2

S3

S4

S5

S6

S7

S8

INTERFACE

LOGIC

SDA

SCL

A0

A1

RESET

Figure 2. ADG715 Functional Block Diagram

and the ADG715 is available in a 24-lead TSSOP.

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. A 24-lead TSSOP for both the ADG714 and the ADG715.

A 24-lead LFCSP for the ADG714.