National Semiconductor DAC1006, DAC1007, DAC1008 - mP Compatible, Double-Buffered D/A Converters

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le -B ffe re to rte rs DAC1006/DAC1007/DAC1008 m P Compatible, Double-Buffered to Converters General Description Features

The DAC1006/7/8 are advanced CMOS/Si-Cr 10-, 9- and Uses easy to adjust END POINT specs, NOT BEST 8-bit accurate multiplying DACs which are designed to inter- STRAIGHT LINE FIT

face directly with the 8080, 8048, 8085, Z-80 and other pop- Low power consumption ular microprocessors. These DACs appear as memory lo- Direct interface to all popular microprocessors cation or an I/O port to the m P and no interfacing logic is

Integrated thin film on CMOS structure

needed.

Double-buffered, single-buffered or flow through digital

These devices, combined with an external amplifier and data inputs voltage reference, can be used as standard D/A converters;

Loads two 8-bit bytes or single 10-bit word

and they are very attractive for multiplying applications

Logic inputs which meet TTL voltage level specs (1.4V

(such as digitally controlled gain blocks) since their linearity

logic threshold)

error is essentially independent of the voltage reference.

Works with g10V referenceÐfull 4-quadrant multiplica-

They become equally attractive in audio signal processing

equipment as audio gain controls or as programmable at-

Operates STAND ALONE (without m P) if desired

tenuators which marry high quality audio signal processing

Available in 0.3× standard 20-pin package

to digitally based systems under microprocessor control.

Differential non-linearity selection available as special

All of these DACs are double buffered. They can load all

order

bits or two 8-bit bytes and the data format is justified. The analog section of these DACs is essentially the same

as that of the DAC1020. Key Specifications Output Current Settling Time ns

The DAC1006 series are the 10-bit members of family of

microprocessor-compatible DAC’s (MICRO-DACTM’s). For Resolution bits applications requiring other resolutions, the DAC0830 series Linearity 10, 9, and bits

(8 bits) and the DAC1208 and DAC1230 (12 bits) are avail- (guaranteed over temp.) able alternatives. Gain Tempco b0.0003% of FS/§C

Low Power Dissipation m W

Accuracy

Part Pin Description (including ladder)

(bits)

Single Power Supply to VDC

DAC1006

For left-

DAC1007 justified

DAC1008 MICRO-DACTM and BI-FETTM are trademarks of National Semiconductor Corp.

Typical Application

DAC1006/1007/1008

NOTE: FOR DETAILS OF BUS CONNECTION SEE SECTION 6.0

TL/H/5688–1

C1995 National Semiconductor Corporation TL/H/5688 RRD-B30M115/Printed in U. S. A.