Date: 10/06/2010

16-channel, 230V SPST switches for control of high voltage signals

Maxim has unveiled its third generation of 230V switches, the MAX14805/MAX14806 16-channel, high-voltage SPST switches. It uses Maxim's HVCMOS technology, which enables the devices to combine high-voltage bilateral DMOS switches and low-power CMOS logic and therefore can provide efficient control of high-voltage analog signals

Each device has 16 channels placed in two banks of 8 channels each and is controlled using two logic inputs. The MAX14806 also integrates 40kohm bleed resistors to discharge capacitive loads such as piezoelectric transducers. Maxim says that the above features makes the switches cost effective and eliminates bulky discrete circuitry on each analog switch terminal, thus saving cost and up to 60% board space.

The MAX14805/MAX14806 has turn-on/turn-off times of 5µs and high-channel-density architecture and is thus suggested for portable and console-based ultrasound devices, nondestructive testing (NDT) equipment, industrial sensors, and other applications that must switch high-voltage signals. This device is said to support a wide range of high voltage supplies. It operates with VNN from -160V to 0V and VPP from +40V to (VNN + 220V).

Package: 7mm x 7mm, 48-pin TQFP

Operating temperature range: -40°C to +85°C

Price: start at US$20.54

For more information visit: www.maxim-ic.com