MAX127BCNG+ (MAXIM INTEGRATED PRODUCTS)

The MAX127BCNG+ is a multirange, +5V, 12bit data acquisition system (DAS) with 2-wire serial interface in 24 pin DIP package. Device operates at single supply, yet accepts signals at its analogue inputs that may span above the power supply rail and below ground. It provides eight analogue input channels that are independently software programmable for a variety of ranges such as ±10V, ±5V, 0 to +10V and 0 to +5V. This range switching increases effective dynamic range to 14bits and provides the flexibility to interface 4mA-20mA, ±12V and ±15V powered sensors directly to a single +5V system. The converter is fault protected to ±16.5V and a fault condition on any channel will not affect the conversion result of selected channel. A hardware shutdown input (SHDN-complementary) and two software programmable power-down modes (standby & full power-down) are provided for low current shutdown between conversions. In standby mode, the reference buffer remains active, eliminating start-up dela