DAC904 CONVERTER Datasheet

DAC904 Datasheet PDF, Equivalent


Part Number

DAC904

Description

DIGITAL-TO-ANALOG CONVERTER

Manufacture

etcTI

Total Page 24 Pages
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Download DAC904 Datasheet PDF


DAC904
DAC904
DAC904
DAC904
SBAS095C MAY 2002
14-Bit, 165MSPS
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q SINGLE +5V OR +3V OPERATION
q HIGH SFDR: 20MHz Output at 100MSPS: 64dBc
q LOW GLITCH: 3pV-s
q LOW POWER: 170mW at +5V
q INTERNAL REFERENCE:
Optional Ext. Reference
Adjustable Full-Scale Range
Multiplying Option
APPLICATIONS
q COMMUNICATION TRANSMIT CHANNELS
WLL, Cellular Base Station
Digital Microwave Links
Cable Modems
q WAVEFORM GENERATION
Direct Digital Synthesis (DDS)
Arbitrary Waveform Generation (ARB)
q MEDICAL/ULTRASOUND
q HIGH-SPEED INSTRUMENTATION AND
CONTROL
q VIDEO, DIGITAL TV
DESCRIPTION
The DAC904 is a high-speed, Digital-to-Analog Converter (DAC)
offering a 14-bit resolution option within the family of high-
performance converters. Featuring pin compatibility among fam-
ily members, the DAC908, DAC900, and DAC902 provide a
component selection option to an 8-, 10-, and 12-bit resolution,
respectively. All models within this family of DACs support
update rates in excess of 165MSPS with excellent dynamic
performance, and are especially suited to fulfill the demands of
a variety of applications.
The advanced segmentation architecture of the DAC904 is
optimized to provide a high Spurious-Free Dynamic Range
(SFDR) for single-tone, as well as for multi-tone signals—
essential when used for the transmit signal path of communica-
tion systems.
The DAC904 has a high impedance (200k) current output with
a nominal range of 20mA and an output compliance of up to
1.25V. The differential outputs allow for both a differential or
single-ended analog signal interface. The close matching of the
current outputs ensures superior dynamic performance in the
differential configuration, which can be implemented with a
transformer.
Utilizing a small geometry CMOS process, the monolithic DAC904
can be operated on a wide, single-supply range of +2.7V to
+5.5V. Its low power consumption allows for use in portable and
battery-operated systems. Further optimization can be realized
by lowering the output current with the adjustable full-scale
option.
For noncontinuous operation of the DAC904, a power-down
mode results in only 45mW of standby power.
The DAC904 comes with an integrated 1.24V bandgap refer-
ence and edge-triggered input latches, offering a complete
converter solution. Both +3V and +5V CMOS logic families can
be interfaced to the DAC904.
The reference structure of the DAC904 allows for additional
flexibility by utilizing the on-chip reference, or applying an
external reference. The full-scale output current can be adjusted
over a span of 2-20mA, with one external resistor, while main-
taining the specified dynamic performance.
The DAC904 is available in SO-28 and TSSOP-28 packages.
+VA
DAC904
FSA
REFIN
BW +VD
Current
Sources
LSB
Switches
Segmented
Switches
IOUT
IOUT
BYP
INT/EXT
+1.24V Ref.
AGND
CLK
Latches
PD
14-Bit Data Input
D13...D0
DGND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2002, Texas Instruments Incorporated

DAC904
ABSOLUTE MAXIMUM RATINGS
+VA to AGND ......................................................................... 0.3V to +6V
+VD to DGND ........................................................................ 0.3V to +6V
AGND to DGND ................................................................. 0.3V to +0.3V
+VA to +VD ............................................................................... 6V to +6V
CLK, PD to DGND ....................................................... 0.3V to VD + 0.3V
D0-D13 to DGND ......................................................... 0.3V to VD + 0.3V
IOUT, IOUT to AGND .......................................................... 1V to VA + 0.3V
BW, BYP to AGND ....................................................... 0.3V to VA + 0.3V
REFIN, FSA to AGND ................................................... 0.3V to VA + 0.3V
INT/EXT to AGND ........................................................ 0.3V to VA + 0.3V
Junction Temperature .................................................................... +150°C
Case Temperature ......................................................................... +100°C
Storage Temperature ..................................................................... +125°C
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
DAC904U
"
DAC904E
"
PACKAGE-LEAD
SO-28
"
TSSOP-28
"
PACKAGE
DESIGNATOR(1)
DW
"
PW
"
SPECIFIED
TEMPERATURE
RANGE
40°C to +85°C
"
40°C to +85°C
"
PACKAGE
MARKING
DAC904U
"
DAC904E
"
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
ORDERING
NUMBER
DAC904U
DAC904U/1K
DAC904E
DAC904E/2K5
TRANSPORT
MEDIA, QUANTITY
Rails, 28
Tape and Reel, 1000
Rails, 52
Tape and Reel, 2500
DEMO BOARD ORDERING INFORMATION
PRODUCT
DAC904U
DAC904E
DEMO BOARD
ORDERING NUMBER
DEM-DAC90xU
DEM-DAC904E
COMMENT
Populated evaluation board without DAC. Order sample of desired DAC90x model separately.
Populated evaluation board including the DAC904E.
ELECTRICAL CHARACTERISTICS
At TA = full specified temperature range, +VA = +5V, +VD = +5V, differential transformer coupled output, 50doubly terminated, unless otherwise specified.
DAC904U, E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
OUTPUT UPDATE RATE
Output Update Rate (fCLOCK)
Full Specified Temperature Range, Operating
STATIC ACCURACY(1)
Differential Nonlinearity (DNL)
Integral Nonlinearity (INL)
DYNAMIC PERFORMANCE
Spurious-Free Dynamic Range (SFDR)
fOUT = 1.0MHz, fCLOCK = 25MSPS
fOUT = 2.1MHz, fCLOCK = 50MSPS
fOUT = 5.04MHz, fCLOCK = 50MSPS
fOUT = 5.04MHz, fCLOCK = 100MSPS
fOUT = 20.2MHz, fCLOCK = 100MSPS
fOUT = 25.3MHz, fCLOCK = 125MSPS
fOUT = 41.5MHz, fCLOCK = 125MSPS
fOUT = 27.4MHz, fCLOCK = 165MSPS
fOUT = 54.8MHz, fCLOCK = 165MSPS
Spurious-Free Dynamic Range within a Window
fOUT = 5.04MHz, fCLOCK = 50MSPS
fOUT = 5.04MHz, fCLOCK = 100MSPS
Total Harmonic Distortion (THD)
fOUT = 2.1MHz, fCLOCK = 50MSPS
fOUT = 2.1MHz, fCLOCK = 125MSPS
Two Tone
fOUT1 = 13.5MHz, fOUT2 = 14.5MHz, fCLOCK = 100MSPS
2.7V to 3.3V
4.5V to 5.5V
Ambient, TA
TA = +25°C
fCLOCK = 25MSPS, fOUT = 1.0MHz
TA = +25°C
To Nyquist
2MHz Span
4MHz Span
14 Bits
125 165
MSPS
165 200
MSPS
40 +85 °C
±2.5
±3.0
LSB
LSB
72 79
76
68
68
64
60
55
60
55
82
82
75
74
63
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
2 DAC904
www.ti.com
SBAS095C


Features DAC904 DAC904 DAC904 SBAS095C – MAY 2002 14-Bit, 165MSPS DIGITAL-TO-ANALOG CONVERTER FEATURES q SINGLE +5V OR +3 V OPERATION q HIGH SFDR: 20MHz Output a t 100MSPS: 64dBc q LOW GLITCH: 3pV-s q LOW POWER: 170mW at +5V q INTERNAL REFE RENCE: Optional Ext. Reference Adjustab le Full-Scale Range Multiplying Option APPLICATIONS q COMMUNICATION TRANSMIT CHANNELS WLL, Cellular Base Station Dig ital Microwave Links Cable Modems q WAV EFORM GENERATION Direct Digital Synthes is (DDS) Arbitrary Waveform Generation (ARB) q MEDICAL/ULTRASOUND q HIGH-SPEED INSTRUMENTATION AND CONTROL q VIDEO, D IGITAL TV DESCRIPTION The DAC904 is a high-speed, Digital-to-Analog Converter (DAC) offering a 14-bit resolution opt ion within the family of highperformanc e converters. Featuring pin compatibili ty among family members, the DAC908, DA C900, and DAC902 provide a component se lection option to an 8-, 10-, and 12-bi t resolution, respectively. All models within this family of DACs support update rates in excess of 165M.
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