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DC1333afa
DEMO MANUAL DC1333A
DESCRIPTION
LTC2640
Single 12-Bit SPI V
OUT
DAC
with Internal Reference
Demonstration circuit 1333A features the
LTC
®
2640
, a
12-bit SPI DAC. This device establishes a new bench-
mark for size and integration of 12-bit DACs and onboard
reference.
The DC1333A may be connected directly to the target
application’s analog signals while using the DC590 USB
serial controller board and supplied software to measure
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.
BOARD PHOTO
performance. After evaluating with Linear Technology’s
software, the digital signals can be connected to the end
application’s processor
Design files for this circuit board are available at
http://www.linear.com/demo/DC1333A
Figure 1. DC1333A Connection Diagram
DAC
CONNECTIONS
RIBBON CABLE
TO DC590
CONTROLLER
dc1333a F01
DEMO BOARD VARIATIONS
DEMO BOARD TYPE
LTC2640 VARIATION
RESOLUTION (BITS)
POWER-UP
FULL-SCALE
DC1333A-A
LTC2640AITS8-LM12
12
Mid-Scale
2.5V
DC1333A-B
LTC2640AITS8-LZ12
12
Zero
2.5V
DC1333A-C
LTC2640AITS8-HM12
12
Mid-Scale
4.096V
DC1333A-D
LTC2640AITS8-HZ12
12
Zero
4.096V
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