ANALOG DEVICES AD5763 Service Manual

Complete Dual, 16-Bit High Accuracy,

FEATURES

Complete dual, 16-bit 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
Asynchronous clear to zero code
Digital offset and gain adjust
Logic output control pins
DSP-/microcontroller-compatible serial interface
Temperature range: −40°C to +105°C
iCMOS® process technology

APPLICATIONS

Industrial automation
Open-loop/closed-loop servo control
Process control
Data acquisition systems
Automatic test equipment
Automotive test and measurement
High accuracy instrumentation

LDAC

1

Serial Input, ±5 V DAC

AD5763

GENERAL DESCRIPTION

The AD5763 is a dual, 16-bit, serial input, bipolar voltage
output digital-to-analog converter (DAC) that operates from
supply voltages of ±4.75 V up to ±5.25 V. The nominal full­scale output range is ±4.096 V. The AD5763 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 adjust registers per channel.

The AD5763 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 AD5763 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
twos complement or offset binary formats. The asynchronous
clear function clears all DAC registers to either bipolar zero or
zero scale depending on the coding used. The AD5763 is ideal
for both closed-loop servo control and open-loop control appli­cations. The AD5763 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 AD5763.

1

iCMOS, Reg. U.S. Patent and Trademark Office.

Rev. A

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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.

Table 1. Related Devices

Part No. Description

AD5764

AD5765

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] ©2009 Analog Devices, Inc. All rights reserved.

Complete quad, 16-bit, high accuracy, serial
input, ±10 V output DAC

Complete quad, 16-bit, high accuracy, serial
input, ±5 V DAC