FEATURES
G
12-BIT RESOLUTION
G
500MHz UPDATE RATE
G
GUARANTEED SPURIOUS
PERFORMANCE
G
LOW GLITCH
G
FAST SETTLING
G
INTERNAL EDGE-TRIGGERED LATCH
G
LASER TRIMMED ACCURACY
G
INTERNAL REFERENCE
G
CLEAN LOW-NOISE OUTPUT
DAC650
FPO
70%
Ref
50
Offset
Trim
Reference
Output
ECL
LO IN
Reference
Adjust
12-Bit
ECL Lines
±20mA
CLK
E
+10V
Reference
Input
50
V
OUT
V
OUT
ECL Logic
Threshold
Reference –1.3V
Tracking
ECL Logic
Threshold
Reference
V
BBOUT
V
BBEXT
V
BBIN
ECL
HI IN
CLK
DESCRIPTION
The DAC650 is a high performance 12-bit digital to
analog converter for high frequency waveform gen-
eration. It is complete with an internal low drift refer-
ence and edge-triggered data latch. The internal seg-
mentation and latching provide for minimal output
glitch energy.
The ECL compatibility provides for low digital noise
at high update rates. The 50
output resistance and
low output capacitance simplify transmission line de-
sign and filtering at the output. Complementary out-
puts are offered for increased performance while driv-
ing transformers or differential amplifiers.
The DAC650 combines precision thin film and bipolar
technology with high speed gallium arsenide to create
a high performance, cost effective solution for modern
waveform synthesis systems.
12-Bit 500MHz
DIGITAL-TO-ANALOG CONVERTER
APPLICATIONS
G
DIRECT DIGITAL SYNTHESIS
G
ARBITRARY WAVEFORM GENERATION
G
HIGH RESOLUTION GRAPHICS
G
COMMUNICATIONS LOCAL OSCILLATORS
Spread Spectrum
Base Stations
Digitally Tuned Receivers
G
HIGH-SPEED MODEMS
International Airport Industrial Park Mailing Address: PO Box 11400 Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd. Tucson, AZ 85706
Tel: (520) 746-1111 Twx: 910-952-1111 Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
1992 Burr-Brown Corporation
PDS-1130B
Printed in U.S.A. May, 1994