LTC1427CS8-50#PBF

LTC®1427-50 is a micropower 10-Bit current output digital-to analogue converter (DAC) with SMBus serial interface and an output range of 0µA to 50µA. This DAC output is guaranteed monotonic and DNL is less than 0.9LSB under all operating conditions. It communicates with external circuitry by using the SMBus serial interface. It acts as a SMBus secondary device using one of four selectable SMBus addresses set by the two address pins AD0 and AD1. On power-up, DAC output assumes midrange or zero scale, depending on the logic state of the two address pins. Its digital data for the DAC output is retained internally and the supply current drops to 10µA typically when in shutdown. Typical applications are LCD contrast and backlight brightness control, power supply voltage adjustment, battery charger voltage/current adjustment, GaAs FET bias adjustment, trimmer pot elimination.

• Precision 50µA, ±1.5% initial full-scale output current, ±2.5% over temperature
• Wide output voltage DC compliance of -15V to (VCC - 1.3V)
• Low supply current of 115µA typical
• DAC powers up at zero or midscale
• DAC contents are retained in shutdown
• Operates with power supply voltages from 2.7V to 5.5V
• 8-lead plastic SO package

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