AD7524MFKB datasheet(7/12 Pages) TI

Part #	AD7524MFKB

Description	Advanced LinCMOSE 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTER

PDF	12 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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7 / 12 page

AD7524M

Advanced LinCMOS

™ 8-BIT MULTIPLYING

DIGITAL-TO-ANALOG CONVERTER

SGLS028A – SEPTEMBER 1989 – REVISED MARCH 1995

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PRINCIPLES OF OPERATION

Table 1. Unipolar Binary Code

DIGITAL INPUT

(see NOTE 3)

ANALOG OUTPUT

MSB

LSB

11111111

10000001

10000000

01111111

00000001

00000000

–Vref (255/256)

–Vref (129/256)

–Vref (128/256) = –Vref /2

–Vref (127/256)

–Vref (1/256)

NOTES:

3. LSB = 1/256 (Vref).

Table 2. Bipolar (Offset Binary) Code

DIGITAL INPUT

(see NOTE 4)

ANALOG OUTPUT

MSB

LSB

11111111

10000001

10000000

01111111

00000001

00000000

Vref (127/128)

Vref (128)

–Vref (128)

–Vref (127/128)

–Vref

NOTES:

4. LSB = 1/128 (Vref).

microprocessor interfaces

A0 – A15

Z-80A

IORQ

Address Bus

Decode

Logic

OUT2

OUT1

DB0 – DB7

Data Bus

D0 – D7

AD7524M

Figure 4. AD7524M – Z-80A Interface

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