MAX196

19-0435; Rev 0; 9/95 KIT ATION EVALU E L B A IL AVA Multirange, Single +5V, 12-Bit DAS with 12-Bit Bus Interface ____________________________Features o 12-Bit Resolution, 1/2LSB Linearity o Single +5V Supply Operation o Software-Selectable Input Ranges: ±10V, ±5V, 0V to +10V, 0V to +5V (MAX196) ±VREF, ±VREF/2, 0V to +VREF, 0V to +VREF/2 (MAX198) o Internal 4.096V or External Reference o Fault-Protected Input Multiplexer o 6 Analog Input Channels o 6µs Conversion Time, 100ksps Sampling Rate o Internal or External Acquisition Control o Two Power-Down Modes o Internal or External Clock _______________General Description The MAX196/MAX198 multirange, 12-bit data-acquisition systems (DAS) require only a single +5V supply for operation, yet convert analog signals at their inputs up to ±10V (MAX196) and ±4V (MAX198). These systems provide six analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, and 0V to +5V for the MAX196; ±VREF, ±VREF/2, 0V to +VREF, and 0V to +VREF/2 for the MAX198. This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface ±12V, ±15V, and 4mA to 20mA powered sensors to a single +5V system. In addition, these converters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, 100ksps throughput rate, software-selectable interna...