LTC1329CS8-50#PBF

LTC1329-50 is micropower 8-bit current output digital-to-analogue converter (DAC). It 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, 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. Typical applications are LCD contrast control, backlight brightness control, battery charger current/voltage adjustment, power supply voltage adjustment, trimmer pot elimination.

• Guaranteed precision full-scale DAC output current at 25°C is 50µA ±3%
• Wide output voltage DC compliance of -15V to 2.5V
• Wide supply range of 2.7V ≤ VCC ≤ 6.5V
• Wide supply range of 2.7V ≤ VCC ≤ 6.5V
• Supply current in shutdown of 0.2µA
• Low supply current of 95µA
• DAC powers up at midrange
• 8-lead plastic SO package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party