DAC08Q2 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

DAC08Q2

8-Bit, High-Speed, Multiplying D/A Converter (Universal Digital Logic Interface)

Analog Devices 

a 8-Bit, High-Speed, Multiplying D/A Converter

(Universal Digital Logic Interface)

DAC08

FEATURES

Fast Settling Output Current: 85 ns

Full-Scale Current Prematched to ؎1 LSB

Direct Interface to TTL, CMOS, ECL, HTL, 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

Low FS Current Drift: ؎10 ppm/؇C

Wide Power Supply Range: ؎4.5 V to ؎18 V

Low Power Consumption: 33 mW @ ؎5 V

Low Cost

Available in Die Form

GENERAL DESCRIPTION

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.

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-scale trimming in

most applications. Direct interface to all popular logic families

with full noise immunity is provided by the high swing, adjust-

able threshold logic input.

High voltage compliance complementary current outputs are

provided, increasing versatility and enabling differential opera-

tion 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 nonlinearities as tight as ± 0.1% over the entire operating

temperature range are available. Device performance is essen-

tially unchanged over the ± 4.5 V to ± 18 V power supply range,

with 33 mW power consumption attainable at ± 5 V supplies.

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.

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, CRT display drivers, high-speed modems and other

applications where low cost, high speed and complete input/

output versatility are required.

FUNCTIONAL BLOCK DIAGRAM

MSB

V+

VLC

B1

B2

B3

B4

B5

B6

13

1

5

6

7

8

9

10

DAC08

14

VREF (+)

BIAS

NETWORK

CURRENT

SWITCHES

15

VREF (–)

REFERENCE

AMPLIFIER

16

3

COMP

V–

B7

11

LSB

B8

12

4 IOUT

2

IOUT

REV. B

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. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

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