General description

The NX3L4684 provides two low-ohmic single-pole double-throw analog switches, suitable for use as an analog or digital multiplexer/demultiplexer. It has a digital select input (nS) with Schmitt trigger action, two independent inputs/outputs (nY0, nY1) and a common input/output (nZ). Schmitt trigger action at the select input (nS) makes the circuit tolerant to slower input rise and fall times across the entire VCC range from 1.4 V to 4.3 V.

A low input voltage threshold allows pin nS to be driven by lower level logic signals without a significant increase in supply current ICC. This makes it possible for the NX3L4684 to switch 4.3 V signals with a 1.8 V digital controller, eliminating the need for logic level translation.

Features

■ Wide supply voltage range from 1.4 V to 4.3 V

■ Very low ON resistance (peak) for Y0 port:

♦ 0.8 Ω (typical) at VCC = 1.4 V

♦ 0.5 Ω (typical) at VCC = 1.65 V

♦ 0.3 Ω (typical) at VCC = 2.3 V

♦ 0.25 Ω (typical) at VCC = 2.7 V

♦ 0.25 Ω (typical) at VCC = 4.3 V

■ Break-before-make switching

■ High noise immunity

■ ESD protection:

♦ HBM JESD22-A114F Class 3A exceeds 4000 V

♦ MM JESD22-A115-A exceeds 200 V

♦ CDM AEC-Q100-011 revision B exceeds 1000 V

■ CMOS low-power consumption

■ Latch-up performance exceeds 100 mA per JESD 78B Class II Level A

■ 1.8 V control logic at VCC = 3.6 V

■ Control input accepts voltages above supply voltage

■ Very low supply current, even when input is below VCC

■ High current handling capability (350 mA continuous current under 3.3 V supply)

■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C

Applications

■ Cell phone

■ PDA

■ Portable media player