ADG714BRUZ-REEL7(RevE) データシートの表示（PDF） - Analog Devices

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ADG714BRUZ-REEL7
(Rev.:RevE)

CMOS, Low Voltage Serially Controlled, Octal SPST Switches

Analog Devices 

Data Sheet

CMOS, Low Voltage

Serially Controlled, Octal SPST Switches

ADG714/ADG715

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,

Rev. E

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FUNCTIONAL BLOCK DIAGRAMS

ADG714

S1

D1

S2

D2

S3

D3

S4

D4

S5

D5

S6

D6

S7

D7

S8

D8

INPUT SHIFT

REGISTER

DOUT

SCLK DIN SYNC RESET

Figure 1. ADG714 Functional Block Diagram

ADG715

S1

D1

S2

D2

S3

D3

S4

D4

S5

D5

S6

D6

S7

D7

S8

D8

INTERFACE

LOGIC

RESET

SDA SCL A0 A1

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.

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