Complete Dual, 16-Bit, High Accuracy,
Serial Input, Bipolar Voltage Output DACs
Preliminary Technical Data
AD5762R
FEATURES
GENERAꢀ DESCRIPTION
Complete dual, 16-bit digital-to-analog
converters (DACs)
Programmable output range: 10 V, 10.2564 V,
or 10.5263 V
1 ꢀSB max INꢀ error, 1 ꢀSB max DNꢀ error
ꢀow noise: 60 nV/√Hz
Settling time: 10 µs max
The AD5762R is a dual, 16-bit, serial input, bipolar voltage
output digital-to-analog converter that operates from supply
voltages of 11ꢀ. ꢁ up to 16ꢀ5 ꢀ Nominal full-scale output
range is 1ꢂ ꢀ The AD5762R provides integrated output
amplifiers, reference buffers and proprietary power-up/power-
down control circuitryꢀ The parts also feature a digital I/O port,
which is programmed via the serial interface and an analog
temperature sensorꢀ The part incorporates digital offset and
gain adjust registers per channelꢀ
Integrated reference buffers
Internal reference: 10 ppm/°C
On-chip die temperature sensor
Output control during power-up/brownout
Programmable short-circuit protection
Simultaneous updating via ꢀDAC
Asynchronous CꢀR to zero code
Digital offset and gain adjust
The AD5762R is a high performance converter that offers
guaranteed monotonicity, integral nonlinearity (INL) of 1 LSB,
low noise, and 1ꢂ µs settling timeꢀ The AD5762R includes an
on-chip 5 ꢁ reference with a reference tempco of 1ꢂ ppm/°C
maximumꢀ During power-up (when the supply voltages are
changing), ꢁOUT is clamped to ꢂ ꢁ via a low impedance pathꢀ
ꢀogic output control pins
DSP-/microcontroller-compatible serial interface
Temperature range: −40°C to +85°C
iCMOS™ process technology1
The AD5762R uses a serial interface that operates at clock rates
of up to 3ꢂ MHz and is compatible with DSP and
microcontroller interface standardsꢀ Double buffering allows
the simultaneous updating of all DACsꢀ The input coding is
programmable to either twos complement or offset binary
formatsꢀ The asynchronous clear function clears all DAC
registers to either bipolar zero or zero scale depending on the
coding usedꢀ The AD5762R is ideal for both closed-loop servo
control and open-loop control applicationsꢀ The AD5762R is
available in a 32-lead TQFP, and offers guaranteed
APPꢀICATIONS
Industrial automation
Open-/closed-loop servo control
Process control
Data acquisition systems
Automatic test equipment
Automotive test and measurement
High accuracy instrumentation
specifications over the −.ꢂ°C to +85°C industrial temperature
rangeꢀ See Figure 1, the functional block diagramꢀ
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 while allowing dramatic reductions in
power consumption and package size, and increased AC and DC
performance.
Rev. PrA
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 registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2007 Analog Devices, Inc. All rights reserved.
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