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dc809af
DEMO MANUAL DC809A
Description
LTC2604
Quad 16-Bit Rail-to-Rail
DAC with SPI Interface
Demonstration circuit 809 features the LT C
®
2604 Quad
16-Bit DAC. This device establishes a new board-density
benchmark for 16-bit 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.
performance summary
Another feature of this board is the onboard LTC2428
20-bit ADC for monitoring DAC output voltage. The 16ppm
total error of this device is adequate for taking meaningful
measurements of various LTC2604 parameters.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
QuikEval is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
Specifications are at T
A
= 25°C
PARAMETER CONDITION VALUE
Resolution 16 Bits
Monotonicity V
CC
= 5V, V
REF
= 4.096V 16 Bits
Differential Nonlinearity V
CC
= 5V, V
REF
= 4.096V ±1LSB
Integral Nonlinearity V
CC
= 5V, V
REF
= 4.096V ±12LSB Typical
Load Regulation V
CC
= V
REF
= 5V, Mid-Scale
I
OUT
= ±15mA
2LSB/mA Max
DC Crosstalk Due to Load Current Change on Any Other Channel 3.5µV/mA
