8-Bit, High Speed, Multiplying D/A Converter
(Universal Digital Logic Interface)
DAC08
scale trimming in most applications. Direct interface to all
popular logic families with full noise immunity is provided by
the high swing, adjustable threshold logic input.
FEATURES
Fast settling output current: 85 ns
Full-scale current prematched to 1 ꢀSB
Direct interface to TTꢀ, CMOS, ECꢀ, HTꢀ, PMOS
Nonlinearity to 0.1% maximum over temperature range
High output impedance and compliance: −10 V to +18 V
Complementary current outputs
Wide range multiplying capability: 1 MHz bandwidth
ꢀow FS current drift: 10 ppmꢁ/C
Wide power supply range: 4.5 V to 18 V
ꢀow power consumption: 33 mW @ 5 V
ꢀow cost
High voltage compliance complementary current outputs are
provided, increasing versatility and enabling differential
operation to effectively double the peak-to-peak output swing.
In many applications, the outputs can be directly converted to
voltage without the need for an external op amp. All DAC08
series models guarantee full 8-bit monotonicity, and nonlineari-
ties as tight as ±0.1% over the entire operating temperature
range are available. Device performance is essentially unchanged
over the ±±.5 V to ±18 V power supply range, with 33 mW
power consumption attainable at ±5 V supplies.
GENERAꢀ DESCRIPTION
The compact size and low power consumption make the DAC08
attractive for portable and military/aerospace applications;
devices processed to MIL-STD-883, Level B are available.
The DAC08 series of 8-bit monolithic digital-to-analog convert-
ers provide very high speed performance coupled with low cost
and outstanding applications flexibility.
DAC08 applications include 8-bit, 1 µs A/D converters, servo
motor and pen drivers, waveform generators, audio encoders
and attenuators, analog meter drivers, programmable power
supplies, LCD display drivers, high speed modems, and other
applications where low cost, high speed, and complete
input/output versatility are required.
Advanced circuit design achieves 85 ns settling times with very
low “glitch” energy and at low power consumption. Monotonic
multiplying performance is attained over a wide 20-to-1
reference current range. Matching to within 1 LSB between
reference and full-scale currents eliminates the need for full-
FUNCTIONAꢀ BꢀOCK DIAGRAM
(MSB)
B1
(LSB)
B8
V+
13
V
LC
B2
B3
B4
B5
B6
10
B7
11
1
5
6
7
8
9
12
DAC08
I
I
OUT
BIAS
NETWORK
CURRENT
SWITCHES
4
2
14
15
OUT
V
V
(+)
(–)
REF
REF
REFERENCE
AMPLIFIER
16
COMP
3
V–
Figure 1.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
www.analog.com
© 2004 Analog Devices, Inc. All rights reserved.
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