AD569

更新时间： 2024-10-30 22:49:59

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
12页	469K
描述
16-Bit Monotonic Voltage Output D/A Converter

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AD569 数据手册

16-Bit Monotonic

Voltage Output D/A Converter

AD569

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Guaranteed 16-Bit Monotonicity

Monolithic BiMOS II Construction

؎0.01% Typical Nonlinearity

8- and 16-Bit Bus Compatibility

3 ␮s Settling to 16 Bits

Low Drift

Low Power

Low Noise

APPLICATIONS

Robotics

Closed-Loop Positioning

High-Resolution ADCs

Microprocessor-Based Process Control

MIL-STD-883 Compliant Versions Available

PRODUCT DESCRIPTION

The AD569 is a monolithic 16-bit digital-to-analog converter

(DAC) manufactured in Analog Devices’ BiMOS II process.

BiMOS II allows the fabrication of low power CMOS logic

functions on the same chip as high precision bipolar linear cir-

cuitry. The AD569 chip includes two resistor strings, selector

switches decoding logic, buffer amplifiers, and double-buffered

input latches.

PRODUCT HIGHLIGHTS

1. Monotonicity to 16 bits is insured by the AD569’s voltage-

segmented architecture.

The AD569’s voltage-segmented architecture insures 16-bit

monotonicity over time and temperature. Integral nonlinearity is

maintained at ±0.01%, while differential nonlinearity is

±0.0004%. The on-chip, high-speed buffer amplifiers provide a

voltage output settling time of 3 µs to within ±0.001% for a

full-scale step.

2. The output range is ratiometric to an external reference or ac

signal. Gain error and gain drift of the AD569 are negligible.

3. The AD569’s versatile data input structure allows loading

from 8- and 16-bit buses.

The reference input voltage which determines the output range

can be either unipolar or bipolar. Nominal reference range is

±5 V and separate reference force and sense connections are

provided for high accuracy applications. The AD569 can oper-

ate with an ac reference in multiplying applications.

4. The on-chip output buffer amplifier can supply ±5 V into a

1 kΩ load, and can drive capacitive loads of up to 1000 pF.

5. Kelvin connections to the reference inputs preserve the gain

and offset accuracy of the transfer function in the presence of

wiring resistances and ground currents.

Data may be loaded into the AD569’s input latches from 8- and

16-bit buses. The double-buffered structure simplifies 8-bit bus

interfacing and allows multiple DACs to be loaded asynchro-

nously and updated simultaneously. Four TTL/LSTTL/5 V

CMOS-compatible signals control the latches: CS, LBE, HBE,

and LDAC

6. The AD569 is available in versions compliant withMIL-STD-

883. Refer to the Analog Devices Military Products Data-

book or current AD569/883B data sheet for detailed

specifications.

The AD569 is available in five grades: J and K versions are

specified from 0°C to +70°C and are packaged in a 28-pin plas-

tic DIP and 28-pin PLCC package; AD and BD versions are

specified from –25°C to +85°C and are packaged in a 28-pin

ceramic DIP. The SD version, also in a 28-pin ceramic DIP, is

specified from –55°C to +125°C.

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.

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

Tel: 617/329-4700

Fax: 617/326-8703

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