Ultra-Small, Low-R, Beyond-the-Rails DPDT Analog Switches

The MAX14689 ultra-small, low-on-resistance (RON) double-pole/double-throw (DPDT) analog switches feature Beyond-the-Rails™ capability that allows signals from -5.5V to +5.5V to pass without distortion, even when the power supply is below the signal range. The low on-resistance (0.25Ω) also makes the device ideal for low-distortion switching applications, such as audio or video.

The MAX14689 is fully specified to operate from a single +1.6V to +5.5V power supply. Because of the low supply current requirement, VCC can be provided by a GPIO. When power is not applied, the switches go to a high-impedance mode and all analog signal ports can withstand signals from -5.5V to +5.5V. The switch is controlled with a single control bit, CB.

The MAX14689 is available in a 1.2mm x 1.2mm, 0.4mm pitch, 9-bump wafer-level package (WLP) and 10-pin, 2.5mm x 2.0mm TDFN package. It operates over the -40°C to +85°C extended temperature range. Applications

* Low-Distortion Signal Switches * Portable Audio/Video Equipment * Smartphones * Tablets

* Distortion-Free Beyond-the-Rails Signaling

* Negative Voltage Audio and Video Signal Capable

* -5.5V to +5.5V Analog Signal Range Independent from VCC

* On-Resistance 0.25Ω (typ)

* +1.6V to +5.5V Single-Supply Range

* Total Harmonic Distortion Plus Noise 0.001% (typ)

* On-Resistance Flatness 0.001Ω (typ)

* Low Supply Current 40µA (typ) at 1.6V

* Can be Powered by GPIO

* High-Impedance Mode when VCC Not Applied

* ESD Protection on COM

* ±15kV Human Body Model

* ±10kV IEC 61000-4-2 Air Gap

* ±8kV IEC 61000-4-2 Contact

* ESD Protection on NC and NO

* ±15kV Human Body Model

* Design Flexibility

* Break-Before-Make Operation

* 9-Bump WLP (1.2mm x 1.2mm) Package

* 10-Pin TDFN (2.5mm x 2.0mm) Package

* -40°C to +85°C Operating Temperature Range