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

Ghi chú

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