Quad, SPST, Ultra-Low-Leakage, CMOS Analog Switches

The MAX326/MAX327 quad, single-pole-single-throw (SPST) .. CMOS analog switches upgrade the DG201A/DG202 and DG211/DG212 with at least 100 times less leakage-the MAX326/MAX327 have 10pA maximum leakage while the DG201 A/DG202 have 1000pA and the DG211/DG212 have 5000pA. Low leakage currents support high system accuracy and make the devices useful for switching into high impedan­ces. such as large-value feedback resistors in closed­ loop gain configurations. And the MAX326/MAX327 log1c inputs are CMOS and TTL compatible.

The MAX326/MAX327's low chargeinjection (2pC typ) minimizes signal error. Operation from single supplies (+10V to +301/), dual supplies (-:t.5V to -:t.18V), and unbal­anced combinations (i.e. +12V and -5V, or +5V and -15V) maximizes design flexibility. Both parts also feature inter­changeable inputs/outputs and Maxim's standard latchup-proof construction.

Extremely low power consumption (5 25mW max) makes the MAX326/MAX327 ideal for portable applications. Other programmable -applications include integrators with long RC time constants, current-to-voltage con­verters, high-gain amplifiers, and voltage dividers.

APPLICATIONS

* High-Accuracy Data Acquisition Systems

* Sample-and-Hold Circuits Communication Systems

* Guidance and Control Systems

* Test Equipment

* 10pA Max Leakage (<1pA Typ)

* Plug-In, Low-Leakage Upgrades for DG201A/DG202 and DG211JDG212

* Interchangeable Inputs/Outputs

* CMOS and TTL Compatible

* 2pC Typ Charge Injection