DC809A

DC809A demonstration circuit features the LTC®2604 quad 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. DC809 has many features for evaluating the performance of the LTC2604. Onboard 5V, 4.096V, and 2.5V precision references are provided. The LTC2604 features separate reference inputs for each DAC, and any of the onboard references can be used for any of the reference inputs. 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 LTC2604 parameters.

• 16bit monotonicity at VCC = 5V, VREF = 4.096V
• ±1LSB differential nonlinearity at VCC = 5V, VREF = 4.096V
• ±12LSB 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)