LTC1329-10

Supply Voltage (VCC) .............................................. 7V
Input Voltage (All Inputs)............ 0.3V to (VCC + 0.3V)
Output Voltage
IOUT .........................................  15V to (VCC + 0.3V)
DOUT .......................................  0.3V to (VCC + 0.3V)
Short-Circuit Duration (All Outputs) ............... Indefinite
Operating Temperature Range ................. 0°C to 70°C
Storage Temperature Range ............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C


Description

The LTC®1329-10/LTC1329-50/LTC1329A-50 are micropower 8-bit current output D/A converters (DACs) with an output range of 0mA to 10mA for the LTC1329-10 and 0mA to 50mA for the LTC1329-50/LTC1329A-50. 

The DAC current output can be biased from  15V to 2V or  15V to 2.5V in 3.3V and 5V systems, respectively. Supply current is only 95mA for the LTC1329-50/LTC1329A-50 and 75mA for LTC1329-10. A shutdown mode drops the supply current to 0.2mA. The LTC1329 can communicate with external circuitry by using one of three interface modes: standard 3-wire serial mode and two pulse modes.

Upon power-up, the internal counter  resets to 1000 0000B, the DAC output assumes midrange and the chip is configured in 3-wire or pulse mode depending on the signal level at CS. In 3-wire mode, the system MPU can serially transfer 8-bit data to and from the LTC1329. In pulse mode, the upper six bits of the DAC output can be programmed for increment- only (1-wire interface) or increment/decrement (2-wire interface) operation depending on the signal level at DIN. LTC1329 is available in 8-pin SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. Triple Mode is a trademark of Linear Technology Corporation.