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DAC1006LCWM Datasheet

  • DAC1006LCWM

  • レP Compatible, Double-Buffered D to A Converters

  • 22頁

  • NSC

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DAC1006 DAC1007 DAC1008
mP
Compatible
Double-Buffered D to A Converters
January 1995
DAC1006 DAC1007 DAC1008
mP
Compatible
Double-Buffered D to A Converters
General Description
The DAC1006 7 8 are advanced CMOS Si-Cr 10- 9- and
8-bit accurate multiplying DACs which are designed to inter-
face directly with the 8080 8048 8085 Z-80 and other pop-
ular microprocessors These DACs appear as a memory lo-
cation or an I O port to the
mP
and no interfacing logic is
needed
These devices combined with an external amplifier and
voltage reference can be used as standard D A converters
and they are very attractive for multiplying applications
(such as digitally controlled gain blocks) since their linearity
error is essentially independent of the voltage reference
They become equally attractive in audio signal processing
equipment as audio gain controls or as programmable at-
tenuators which marry high quality audio signal processing
to digitally based systems under microprocessor control
All of these DACs are double buffered They can load all 10
bits or two 8-bit bytes and the data format is left justified
The analog section of these DACs is essentially the same
as that of the DAC1020
The DAC1006 series are the 10-bit members of a family of
microprocessor-compatible DAC鈥檚 (MICRO-DAC
TM
鈥檚) For
applications requiring other resolutions the DAC0830 series
(8 bits) and the DAC1208 and DAC1230 (12 bits) are avail-
able alternatives
Part
DAC1006
DAC1007
DAC1008
MICRO-DAC
TM
and
BI-FET
TM
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Uses easy to adjust END POINT specs NOT BEST
STRAIGHT LINE FIT
Low power consumption
Direct interface to all popular microprocessors
Integrated thin film on CMOS structure
Double-buffered single-buffered or flow through digital
data inputs
Loads two 8-bit bytes or a single 10-bit word
Logic inputs which meet TTL voltage level specs (1 4V
logic threshold)
Works with
g
10V reference full 4-quadrant multiplica-
tion
Operates STAND ALONE (without
mP)
if desired
Available in 0 3 standard 20-pin package
Differential non-linearity selection available as special
order
Key Specifications
Y
Y
Y
Output Current Settling Time
Resolution
Linearity
Gain Tempco
Low Power Dissipation
(including ladder)
Single Power Supply
Y
Y
Accuracy
(bits)
10
9
8
500 ns
10 bits
10 9 and 8 bits
(guaranteed over temp )
b
0 0003% of FS C
20 mW
5 to 15 V
DC
Pin
Description
Y
20
For left-
justified
data
are trademarks of National Semiconductor Corp
Typical Application
DAC1006 1007 1008
NOTE FOR DETAILS OF BUS
CONNECTION SEE SECTION 6 0
TL H 5688 鈥?1
C
1995 National Semiconductor Corporation
TL H 5688
RRD-B30M115 Printed in U S A

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