Fairchild SPT5240 User Manual
REV. 1 June 2003
www.fairchildsemi.com
Features
• 400 MWPS update rate
• Complementary current outputs
• +3.3 V power supply
• Low power dissipation:
• Complementary current outputs
• +3.3 V power supply
• Low power dissipation:
149mW (typ) @ƒ
CLK
= 400MHz and 12mA output
• Excellent AC performance:
SFDR = 58dBc for ƒ
CLK
= 400MHz and ƒ
OUT
= 1.27 MHz
• Internal reference
Applications
• Battery-operated devices
• Portable RF devices
• Set top boxes
• Video displays
• Broadband RF
• High-speed test equipment
• Portable RF devices
• Set top boxes
• Video displays
• Broadband RF
• High-speed test equipment
Description
The SPT5240 is a 10-bit digital-to-analog converter that
performs at an update rate of 400M words per second. The
architecture achieves excellent high-frequency performance
with very low power dissipation. This makes it ideal for all
types of battery-operated equipment requiring high-speed
digital-to-analog conversion.
performs at an update rate of 400M words per second. The
architecture achieves excellent high-frequency performance
with very low power dissipation. This makes it ideal for all
types of battery-operated equipment requiring high-speed
digital-to-analog conversion.
The SPT5240 operates over an extended industrial
temperature range from -40°C to +85°C and is available in a
32-lead LQFP package.
temperature range from -40°C to +85°C and is available in a
32-lead LQFP package.
SPT5240
10-bit, 400 MWPS Current Output
Digital-to-Analog Converter
Digital-to-Analog Converter
Functional Block Diagram
D0 – D9
IO
P
IO
N
CLK
I
SET
DV
DD
AV
DD
PWD
DGND
AGND
10-bit
Current Output
DAC
10 Bits
Reference
Circuit