EVAL-AD5765EBZ データシートの表示（PDF） - Analog Devices

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EVAL-AD5765EBZ

Complete Quad, 16-Bit, High Accuracy, Serial Input, ±5 V DAC

Analog Devices 

Data Sheet

Complete Quad, 16-Bit, High Accuracy,

Serial Input, ±5 V DAC

AD5765

FEATURES

Complete quad, 16-bit digital-to-analog converter (DAC)

Programmable output range: ±4.096 V, ±4.201 V, or ±4.311 V

±1 LSB maximum INL error, ±1 LSB maximum DNL error

Low noise: 70 nV/√Hz

Settling time: 10 μs maximum

Integrated reference buffers

On-chip die temperature sensor

Output control during power-up/brownout

Programmable short-circuit protection

Simultaneous updating via LDAC

Asynchronous CLR to zero code

Digital offset and gain adjustment

Logic output control pins

DSP-/microcontroller-compatible serial interface

Temperature range: −40°C to +105°C

iCMOS® process technology1

APPLICATIONS

Industrial automation

Open-/closed-loop servo control

Process control

Data acquisition systems

Automatic test equipment

Automotive test and measurement

High accuracy instrumentation

GENERAL DESCRIPTION

The AD5765 is a quad, 16-bit, serial input, bipolar voltage

output, digital-to-analog converter (DAC) that operates from

supply voltages of ±4.75 V to ±5.25 V. The nominal full-scale

output range is ±4.096 V. The AD5765 provides integrated

output amplifiers, reference buffers, and proprietary power-

up/power-down control circuitry. The part also features a

digital I/O port, which is programmed via the serial interface.

The part incorporates digital offset and gain adjustment

registers per channel.

The AD5765 is a high performance converter that offers

guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB,

low noise, and 10 μs settling time. During power-up (when the

supply voltages are changing), the outputs are clamped to 0 V

via a low impedance path.

The AD5765 uses a serial interface that operates at clock rates of

up to 30 MHz and is compatible with DSP and microcontroller

interface standards. Double buffering allows the simultaneous

updating of all DACs. The input coding is programmable to

either a twos complement or an offset binary format. The

asynchronous clear function clears all DAC registers to either

bipolar zero or zero scale, depending on the coding used. The

AD5765 is ideal for both closed-loop servo control and open-

loop control applications. The AD5765 is available in a 32-lead

TQFP and offers guaranteed specifications over the −40°C to

+105°C industrial temperature range. Figure 1 contains a

functional block diagram of the AD5765.

Table 1. Related Devices

Part No. Description

AD5764

Complete quad, 16-bit, high accuracy, serial input,

±10 V DAC

AD5763

Complete dual, 16-bit, high accuracy, serial input,

±5 V DAC

1 For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher voltage levels, iCMOS is a technology

platform that enables the development of analog ICs capable of 30 V and operating at ±15 V supplies, allowing dramatic reductions in power consumption and

package size and increased ac and dc performance.

Rev. C

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. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

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

Tel: 781.329.4700

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Fax: 781.461.3113 ©2009–2011 Analog Devices, Inc. All rights reserved.

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