Quad Beyond-the-Rails -15V to +35V Analog Switch

The MAX14777 quad SPST switch supports analog signals above and below the rails with a single 3.0V to 5.5V supply. The device features a selectable -15V/+35V or -15V/+15V analog signal range for all switches. Each switch has a separate control input to allow independent switching, making the device an alternative to opto-relays in applications that do not need galvanic isolation.

The IC features 10Ω (max) on-resistance, and 9mΩ (typ) RON flatness, along with a low 50nA (max at +85°C) on-leakage. For maximum signal integrity, the device keeps this performance over the entire common-mode voltage range. Each switch can carry up to 60mA (max) of continuous current in either direction.

The MAX14777 is available in a 20-pin (4mm x 4mm) TQFN package and is specified over the -40°C to +105°C temperature range. Applications

* 4–20mA Switching * ATE Systems * Industrial Measurement Systems * Instrumentation Systems

* Simple, Flexible Board Design

* -15V/+35V Beyond-the-Rails™ Signal Range from a Single 3.0V to 5.5V Supply

* Selectable -15V/+15V Signal Range for Lower Supply Current

* 60mA Maximum Current through Each Switch

* 1.62V to 5.5V Logic Interface

* High-Performance 10Ω RON (max)

* 150mΩ (max) RON Flatness

* ±50nA (max) On-Leakage at TA = +85°C

* Saves Board Space

* Small 20-Pin TQFN Package (4mm x 4mm)

* -40°C to +105°C Operating Temperature Range