LTC1283

Supply Voltage (VCC) to GND or V  ...................... 12V
Voltage
Analog and Reference
Inputs ................................. (V ) 0.3V to VCC + 0.3V
Digital Inputs............................................ 0.3V to 12V
Digital Outputs ........................... ...0.3V to VCC + 0.3V
Negative Supply Voltage (V) ..................... 6V to GND
Power Dissipation.............................................. 500mW
Operating Temperature
LTC1283AC, LTC1283C ............................ 0°C to 70°C
Storage Temperature Range ............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C


Description

The LTC1283 is a 3V data acquisition component which contains a serial I/O successive approximation A/D converter. It uses LTCMOSTM switched capacitor technology to perform either 10-bit unipolar, or 9-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can configured for either single-ended or differential inputs ( combinations thereof). An on-chip sample-and-hold included for all single-ended input channels. 

The serial I/O is designed to be compatible with industrystandard full-duplex serial interfaces. It allows either MSBor LSB-first data and automatically provides 2's complement output coding in the bipolar mode. The output data word can be programmed for a length of 8-, 10-, 12-, 16-bit. This allows easy interface to shift registers and variety of processors. Both the LTC1283A and LTC1283 are specified with offset and linearity errors less than ±0.5LSB. The LTC1283A has a gain error limit of ±1LSB. The 1283 is specified with gain error limit of ±2LSB for applications where gain adjustable or less critcial.