AD5722R 데이터 시트보기 (PDF) - Analog Devices
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AD5722R
Analog Devices
AD5722R Datasheet PDF : 32 Pages
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Data Sheet
Complete, Dual, 12-/14-/16-Bit, Serial Input,
Unipolar/Bipolar, Voltage Output DACs
AD5722R/AD5732R/AD5752R
FEATURES
Complete, dual, 12-/14-/16-bit digital-to-analog converter (DAC)
Operates from single/dual supplies
Software programmable output range
+5 V, +10 V, +10.8 V, ±5 V, ±10 V, ±10.8 V
INL error: ±16 LSB maximum, DNL error: ±1 LSB maximum
Total unadjusted error (TUE): 0.1% FSR maximum
Settling time: 10 μs typical
Integrated reference: 5 ppm/°C maximum
Integrated reference buffers
Output control during power-up/brownout
Simultaneous updating via LDAC
Asynchronous CLR to zero scale or midscale
DSP-/microcontroller-compatible serial interface
24-lead TSSOP
Operating temperature range: −40°C to +85°C
iCMOS process technology1
APPLICATIONS
Industrial automation
Closed-loop servo control, process control
Automotive test and measurement
Programmable logic controllers
GENERAL DESCRIPTION
The AD5722R/AD5732R/AD5752R are dual, 12-/14-/16-bit,
serial input, voltage output digital-to-analog converters. They
operate from single supply voltages of +4.5 V up to +16.5 V or
dual supply voltages from ±4.5 V up to ±16.5 V.
Nominal full-scale output range is software selectable from
+5 V, +10 V, +10.8 V, ±5 V, ±10 V, or ±10.8 V. Integrated output
amplifiers, reference buffers, and proprietary power-up/power-
down control circuitry are also provided.
The devices offer guaranteed monotonicity, integral
nonlinearity (INL) of ±16 LSB maximum, low noise, 10 μs
maximum settling time, and an on-chip +2.5 V reference.
The AD5722R/AD5732R/AD5752R use a serial interface that
operates at clock rates up to 30 MHz and are compatible with
DSP and microcontroller interface standards. Double buffering
allows the simultaneous updating of all DACs. The input coding
is user-selectable twos complement or offset binary for a bipolar
output (depending on the state of Pin BIN/2sComp), and
straight binary for a unipolar output. The asynchronous clear
function clears all DAC registers to a user-selectable zero-scale
or midscale output. The devices are available in a 24-lead
TSSOP and offer guaranteed specifications over the −40°C to
+85°C industrial temperature range.
Table 1. Pin Compatible Devices
Device Number
Description
AD5722/AD5732/AD5752
AD5722R/AD5732R/AD5752R
without internal reference.
AD5724/AD5734/AD5754
Complete, quad, 12-/14-/16-bit,
serial input, unipolar/bipolar,
voltage output DACs.
AD5724R/AD5734R/AD5754R AD5724/AD5734/AD5754 with
internal reference.
.
FUNCTIONAL BLOCK DIAGRAM
AVSS AVDD
REFIN/REFOUT
DVCC
CLR
BIN/2sCOMP
SDIN
SCLK
SYNC
SDO
AD5722R/AD5732R/AD5752R
2.5V
REFERENCE
n
INPUT SHIFT
REGISTER
AND
CONTROL
LOGIC
INPUT
REGISTER A
DAC
REGISTER A
INPUT
REGISTER B
DAC
REGISTER B
REFERENCE
BUFFERS
n
DAC A
n
DAC B
VOUTA
VOUTB
AD5722: n = 12-BIT
AD5732: n = 14-BIT
AD5752: n = 16-BIT
GND
LDAC
Figure 1.
DAC_GND (2) SIG_GND (2)
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, as well as increased ac and dc performance.
Rev. F
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