MAX383

19-0300; Rev 0; 9/94 Precision, Low-Voltage Analog Switches _______________General Description The MAX381/MAX383/MAX385 are precision, low-voltage analog switches. The single-pole single-throw MAX381 and double-pole single-throw MAX385 dual switches are normally open. The single-pole doublethrow MAX383 has two normally open and two normally closed poles. All three parts offer low on-resistance (less than 35 Ω ), guaranteed to match to within 2 Ω between channels and to remain flat over the specified analog signal range (4Ω max). They also offer low leakage (less than 250pA at +25°C and less than 2.5nA at +85°C) and fast switching (turn-on time less than 175ns and turn-off time less than 100ns). The MAX381/MAX383/MAX385 are fabricated with Maxim’s low-voltage silicon-gate process for high system accuracy. Design improvements guarantee extremely low charge injection (<5pC) and low power consumption (<10µW). These monolithic switches operate with a single positive supply (+3V to +15V) or with split supplies (±3V to ±8V) while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. ____________________________Features o Single-Supply Operation (+3V to +15V) Bipolar-Supply Operation (±3V to ±8V) o Pin-Compatible with DG401/DG403/DG405 o Low On-Resistance, 20Ω Typical (35Ω Max) o Guaranteed Matched On-Resistance Between Channels, <2Ω o Guaranteed Flat On-Resistance over Specified Analog Signal Range, <4Ω o Guaranteed Charge Injectio...