LTC2631 releases alongside an SPI-equivalent LTC2640 12-/10-/8-bit family, each offering the choice of a 2.5V or 4.096V full-scale output range. Alternatively, an external reference can be applied if more accuracy or a non-standard voltage range is required. The LTC2631/LTC2640 DAC outputs can power up to zero-scale or mid-scale with the internal or external reference, allowing more flexibility for designs that cannot be forced to ground when power is first applied.
The LTC2631 and LTC2640 DACs both offer 12-bit DC performance of ±1LSB(max) integral nonlinearity error, enabling operation in open-loop as well as closed-loop systems. LTC2631 and LTC2640 complement a family of ultra-tiny DACs that includes the previously released LTC2630 (SPI-compatible, SC70 6-pin package, internal reference not bonded out). These low-power DACs draw only 180uA of supply current at 3V, making them ideal for portable equipment.
LTC2631/LTC2640 are ideal for automotive voltage adjustment, as they have guaranteed specifications for the H-grade temperature range (-40°C to +125°C), in addition to the industrial (-40°C to +85°C) and commercial (0°C to +70°C) temperature ranges.
The LTC2631 and LTC2640 12-bit, 10-bit, and 8-bit options are now available in 8-pin TSOT23 packages. Pricing begins at $1.03 each, in 1,000-piece quantities. |
