DC778A

DC778A demonstration circuit features the LTC®2602 dual 16bit DAC. This device establishes a new board-density benchmark for 16bit DACs and advances performance standards for output drive, load regulation, and crosstalk in single-supply, voltage-output DACs. DC778A has many features for evaluating the performance of the LTC2602. Onboard 5V, 4.096V, and 2.5V precision references are provided, and the LTC2602 may be powered by the 5V reference for evaluating rail-to-rail operation. Another feature of this board is the onboard LTC2422 20-bit ADC for monitoring DAC output voltage. The 16ppm total error of this device is adequate for taking meaningful measurements of various LTC2602 parameters.

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