AD75004KNZ Analog Devices Inc, AD75004KNZ Datasheet

AD75004KNZ

Manufacturer Part Number

AD75004KNZ

Description

QUAD 12-BIT DAC, PDIP IC

Manufacturer

Analog Devices Inc

Datasheet

1.AD75004KNZ.pdf (4 pages)

Specifications of AD75004KNZ

Settling Time

4µs

Number Of Bits

Data Interface

Parallel

Number Of Converters

Voltage Supply Source

Dual ±

Power Dissipation (max)

720mW

Operating Temperature

0°C ~ 70°C

Mounting Type

Through Hole

Package / Case

24-DIP (0.600", 15.24mm)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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PRODUCT DESCRIPTION

The AD75004 contains four complete, voltage output, 12-bit

digital-to-analog converters, a high stability bandgap reference,

and double-buffered input latches on a single chip. The convert-

ers use 12 precision high speed bipolar current steering switches

and laser-trimmed thin-film resistor networks to provide fast

settling time and high accuracy.

Microprocessor compatibility is achieved by the on-chip

double-buffered latches. The design of the input latches allows

direct interface to 8-bit buses. The 12 bits of data from the first

rank of latches can then be transferred to the second rank,

avoiding generation of spurious analog output values. The latch

responds to strobe pulses as short as 50 ns, allowing use with

fast microprocessors.

The functional completeness and high performance of the

AD75004 results from a combination of advanced switch de-

sign, the BiMOS II fabrication process, and proven laser trim-

ming technology. BiMOS II is an epitaxial BiCMOS process

optimized for analog and converter functions. The AD75004 is

trimmed at the wafer level and is specified to 1/2 LSB maxi-

mum linearity error at 25 C and 3/4 LSB over the full operat-

ing temperature range. The on-chip output amplifiers provide

an output range of 5 V, with 1 LSB equal to 2.44 mV.

REV. A

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

4 Complete 12-Bit D/A Functions

Double-Buffered Latches

Simultaneous Update of All DACs Possible

High Stability Bandgap Reference

Monolithic BiMOS Construction

Guaranteed Monotonic over Temperature

3/4 LSB Linearity Guaranteed over Temperature

4 s max Settling Time to 0.01%

Operates with

Low Power: 720 mW max Including Reference

TTL/5 V CMOS Compatible Logic Inputs

8-Bit Microprocessor Interface

24-Pin PDIP or 28-Lead PLCC Package

5 V Output Range

12 V Supplies

The bandgap reference on the chip has low noise, long term

stability and temperature drift characteristics comparable to

discrete reference diodes. The absolute value of the reference is

laser trimmed to +5.00 V with 0.6% maximum error. Its tem-

perature coefficient is also laser trimmed.

Typical full-scale gain TC is 15 ppm/ C. With guaranteed

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

Tel: 617/329-4700

monotonicity over the full temperature range, the AD75004 is

well suited for wide temperature range performance.

REFERENCE

+5V

INPUTS

VOLTAGE

8-BIT

BUS

TTL

REFOUT

FUNCTIONAL BLOCK DIAGRAM

LATCHES

8 + 4-BIT

CS WR

INPUT

CONTROL LOGIC

TTL INPUTS

REFIN

2.22k

A3 A2 A1 A0

LATCHES

LATCH

12-BIT

DAC

D/A Converter

12-BIT

DAC

AD75004

Quad 12-Bit

AD75004

Fax: 617/326-8703

10k

+12V

–12V

DGND

AGND

OUT1

OUT0

OUT3

OUT2

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AD75004KNZ Summary of contents

Page 1

FEATURES 4 Complete 12-Bit D/A Functions Double-Buffered Latches Simultaneous Update of All DACs Possible 5 V Output Range High Stability Bandgap Reference Monolithic BiMOS Construction Guaranteed Monotonic over Temperature 3/4 LSB Linearity Guaranteed over Temperature 4 s max Settling ...

Page 2

AD75004–SPECIFICATIONS Parameter DIGITAL INPUTS (D0–D7, A0–A3, CS, WR) Logic Levels (TTL Compatible) Input Voltage, Logic “1” Input Voltage, Logic “0” Input Current 5 Input Current 0 Input Capacitance ACCURACY Resolution Integral Linearity ...

Page 3

TIMING CHARACTERISTICS (T = +25 C, 12.0 V power supplies unless otherwise noted) A Parameter Symbol Address Setup Time t 1 Address Hold Time t 2 Data Setup Time t 3 Data Hold Time t 4 Chip Select to Write ...

Page 4

AD75004 PIN DESCRIPTIONS Plastic PLCC DIP Pin Pin Name Description Data Input Bit Data Input Bit Data Input Bit Data Input Bit ...

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