DC935A

DC935A demonstration circuit features the LTC®2605 octal 16bit DAC. This device establishes a new board-density benchmark for 16bit DACs and advances performance standards for output drive, crosstalk and load regulation in single supply, voltage-output multiple DACs. DC935A has many features for evaluating the performance of the LTC2605. Onboard 5V and 4.096V precision references are provided, and the LTC2605 may be powered by the 5V reference for evaluating rail-to-rail operation. Another feature of this board is the onboard LTC2428 20bit ADC for monitoring DAC output voltage. The 16ppm total error of this device is adequate for taking meaningful measurements of various LTC2605 parameters.

• 16bit monotonicity at VCC = 5V, VREF = 4.096V
• ±1LSB differential nonlinearity at VCC = 5V, VREF = 4.096V
• ±18LSB typical integral nonlinearity at VCC = 5V, VREF = 4.096V
• 2LSB/mA max load regulation at VCC = VREF = 5V, Mid-Scale IOUT = ±15mA
• 3.5µV/mA DC crosstalk (due to load current change on any other channel)