AD5762R Datasheet PDF - Analog Devices
| Part Number | AD5762R | |
| Description | Bipolar Voltage Output DACs Preliminary | |
| Manufacturers | Analog Devices | |
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Preliminary Technical Data
Complete Dual, 16-Bit, High Accuracy,
Serial Input, Bipolar Voltage Output DACs
AD5762R
FEATURES
Complete dual, 16-bit digital-to-analog
converters (DACs)
Programmable output range: ±10 V, ±10.2564 V,
or ±10.5263 V
±1 LSB max INL error, ±1 LSB max DNL error
Low noise: 60 nV/√Hz
Settling time: 10 µs max
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 LDAC
Asynchronous CLR to zero code
Digital offset and gain adjust
Logic output control pins
DSP-/microcontroller-compatible serial interface
Temperature range: −40°C to +85°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 AD5762R is a dual, 16-bit, serial input, bipolar voltage
output digital-to-analog converter that operates from supply
voltages of ±11.4 V up to ±16.5 V. Nominal full-scale output
range is ±10 V. The AD5762R provides integrated output
amplifiers, reference buffers and proprietary power-up/power-
down control circuitry. The parts also feature a digital I/O port,
which is programmed via the serial interface and an analog
temperature sensor. The part incorporates digital offset and
gain adjust registers per channel.
The AD5762R is a high performance converter that offers
guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB,
low noise, and 10 µs settling time. The AD5762R includes an
on-chip 5 V reference with a reference tempco of 10 ppm/°C
maximum. During power-up (when the supply voltages are
changing), VOUT is clamped to 0 V via a low impedance path.
The AD5762R 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 AD5762R is ideal for both closed-loop servo
control and open-loop control applications. The AD5762R is
available in a 32-lead TQFP, and offers guaranteed
specifications over the −40°C to +85°C industrial temperature
range. See Figure 1, the functional block diagram.
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
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Preliminary Technical Data
AD5762R
Parameter
DIGITAL INPUTS3
VIH, Input High Voltage
VIL, Input Low Voltage
Input Current
Pin Capacitance
DIGITAL OUTPUTS (D0, D1, SDO)3
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
High Impedance Leakage Current
High Impedance Output Capacitance
DIE TEMPERATURE SENSOR3
Output Voltage at 25°C
Output Voltage Scale Factor
Output Voltage Range
Output Load Current
Power-On Time
POWER REQUIREMENTS
AVDD/AVSS
DVCC
Power Supply Sensitivity3
∆VOUT/∆ΑVDD
AIDD
AISS
DICC
Power Dissipation
C Grade2
2
0.8
±1
10
0.4
DVCC − 1
0.4
DVCC − 0.5
±1
5
1.4
5
1.175/1.9
200
80
11.4/16.5
2.7/5.25
−85
3.5
2.75
1.2
140
Unit
V min
V max
µA max
pF max
V max
V min
V max
V min
µA max
pF typ
V typ
mV/°C typ
V min/V max
µA max
ms typ
V min/V max
V min/V max
dB typ
mA/channel max
mA/channel max
mA max
mW typ
Test Conditions/Comments
DVCC = 2.7 V to 5.25 V, JEDEC compliant
Per pin
Per pin
DVCC = 5 V ± 5%, sinking 200 µA
DVCC = 5 V ± 5%, sourcing 200 µA
DVCC = 2.7 V to 3.6 V,
sinking 200 µA
DVCC = 2.7 V to 3.6 V,
sourcing 200 µA
SDO only
SDO only
Die temperature
−40°C to 105°C
Current source only
Outputs unloaded
Outputs unloaded
VIH = DVCC, VIL = DGND, 750 µA typ
±12 V operation output unloaded
2 Temperature range : -40°C to +85°C; typical at 25°C. Device functionality is guaranteed to +105°C with degraded performance.
3 Guaranteed by design and characterization; not production tested.
4 Output amplifier headroom requirement is 1.4 V minimum.
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AD5762R.PDF Datasheet ] | |
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