CMOS, Low Voltage, SPI/QSPI/Microwire Compatible Interface, Serially Controlled, Octal SPST Switches

The ADG714 is a complementary metal-oxide semiconductor (CMOS), octal single-pole, single-throw (SPST) switch controlled via a 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.

On power-up, 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 makes this part ideal for many applications. The ADG714 may also be supplied from a dual ±2.5 V supply. The ADG714 is available in a 24-lead TSSOP and a 24-lead LFCSP.

Product Highlights

* 3-wire serial interface.

* Single-/dual-supply operation.

The ADG714 and ADG715 are fully specified and

guaranteed with 3 V, 5 V, and ±2.5 V supply rails.

* Low on resistance, typically 2.5 Ω.

* Low leakage.

* Power-on reset.

* A 24-lead TSSOP.

* A 24-lead LFCSP.

Applications

* Data acquisition systems

* Communication systems

* Relay replacement

* Audio and video switching

* SPI/QSPI/MICROWIRE-compatible interface

* 2.7 V to 5.5 V single supply

* ±2.5 V dual supply

* 2.5 Ω on resistance

* 0.6 Ω on resistance fatness

* 0.1 nA leakage currents

* Octal SPST

* Power-on reset

* Fast switching times

* TTL/CMOS compatible

* 24-lead TSSOP and 24-lead LFCSP