MP3276 - Exar

MP3276 12-Bit Data Acquisition Subsystem

The MP3276 is a complete 16-channel, 12-bit Data Acquisition Subsystem with 3-state output buffers for direct interfacing to 16-bit microprocessor buses. Implemented using an advanced BiCMOS process, the converter combines a 16-channel passive overvoltage protected multiplexer instrumentation amp, a sample & hold, a SAR, a 12-bit decoded D/A, a comparator, a.

Features

• Fault Protected 16-Channel 12-Bit A/D Converter with Sample & Hold, Reference, Clock and 3-state Outputs
• Fast Conversion, less than 15µS
• Microprocessor Bus Interface
• 2’s Complement Data Output
• Parallel or Serial Data Output Modes
• 65 ns Bus Access Time
• Remote Analog Ground Sensing
• Overvoltage Protected Input (50 V over the Supply Voltages)
• Precision Reference for Long Term Stability and Low Gain T.C.
• Guaranteed Linearity Over Temperature
• Guaranteed Performance at +12/
  –5 V, ±12 & ±15 V
• Low Power: 110 mW typ. (7 mW per Channel typ.)
• 32 Channel Version: MP3274 GENERAL D.