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DC1333A-B

P1-P3P4-P6
1
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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DC1333afa
DEMO MANUAL DC1333A
QUICK START PROCEDURE
1. Connect the DC1333A to a DC590 USB serial controller
using the supplied 14-conductor ribbon cable.
2. Connect the DC590 to the host PC with a standard
USB A/B cable.
3. Run the QuikEval™ evaluation software supplied
with the DC590 or download it from www.linear.
com/software. The correct program will be loaded
automatically.
Options are available to display the DAC output in voltage,
hex code, or decimal count. Additionally, the reference
voltage may be changed to reflect an actual measured
value, such that the output voltage matches the theoreti-
cal output voltage. The reference mode
may be changed
from internal reference to external reference.
Features may be periodically added to the software. See
the software’s help menu for the latest information.
Figure 2. QuikEval Software
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DC1333afa
DEMO MANUAL DC1333A
HARDWARE SETUP
JUMPERS
_CLR/REF_SEL: On the B and D versions of the demo
board, this is not populated. On the A and C versions of the
demo board, this is used to determine the reference input.
ANALOG CONNECTIONS
DAC outputs are provided on the row of turret posts at
the edge of the board.
GROUNDING AND POWER CONNECTIONS
Power (V
CC
): Normally, the DC1334A is powered by the
DC590 controller. V
CC
can be supplied to the 5V turret,
however the power supply on the DC590 must be disabled!
Refer to the DC590 Quick Start Guide for more details on
this mode of operation.
Grounding: Three ground posts are provided.
P1-P3P4-P6

DC1333A-B

Mfr. #:
Buy DC1333A-B
Manufacturer:
Analog Devices Inc.
Description:
Data Conversion IC Development Tools LTC2640-LZ12 Demo Board - 12-Bit SPI DAC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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