AD7783 Analog Devices, AD7783 Datasheet
AD7783
Specifications of AD7783
Available stocks
Related parts for AD7783
AD7783 Summary of contents
Page 1
... V supplies, the power dissipation for the part is 3.9 mW. The AD7783 is available in a 16-lead TSSOP. Another part in the AD778x family is the AD7782 similar to the AD7783 except it has no integrated current sources and two differential input channels. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
Page 2
... Initial Current Matching at 25∞C Drift Matching Line Regulation Load Regulation Output Compliance 5.25 V, REFIN(+) = 2.5 V; REFIN(–) = GND unless otherwise noted.) MIN MAX AD7783B Unit 19.79 Hz nom 24 Bits min 16 Bits p-p 18 Bits p-p See Table I ± 10 ppm of FSR max ± typ ± ...
Page 3
... V min 0.4 V max ± max ± typ Offset Binary 300 ms typ 2.7/3.6 V min/V max 4.75/5.25 V min/V max 1.5 mA max 1.7 mA max mA max 9 mA max 24 –3– AD7783 Test Conditions ...
Page 4
... AD7783 TIMING CHARACTERISTICS Input Logic Logic unless otherwise noted.) DD Limit at T Parameter (B Version) t 30.5176 1 t 50.54 ADC ¥ ADC Slave Mode Timing t 100 5 t 100 6 Master Mode Timing ...
Page 5
... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7783 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
Page 6
... SCLK is Schmitt triggered (slave mode), making the interface suitable for opto- isolated applications. CS Chip Select Input active low logic input used to select the AD7783. When CS is low, the PLL 11 establishes lock and allows the AD7783 to initiate a conversion. When CS is high, the conversion is aborted, DOUT and SCLK are three-stated, the AD7783 enters standby mode, and any conversion result in the output shift register is lost ...
Page 7
... The output rate of the AD7783 (f while the settling time equals Normal-mode rejection is the major function of the digital filter on the AD7783. Simultaneous 50 Hz and 60 Hz rejection of better than achieved as notches are placed at both 50 Hz and 60 Hz. Figure 4 shows the filter rejection. ...
Page 8
... CS is used to select the device and to place the device in standby mode. When CS is taken low, the AD7783 is powered up, the PLL locks, and the device initiates a conversion. The device will continue to convert until CS is taken high. When CS is taken high, the AD7783 is placed in standby mode, minimizing the current consumption ...
Page 9
... As a result, the AD7783 is more immune to noise interference than a conventional high resolution converter. However, because the resolution of the AD7783 is so high, and the noise levels from the AD7783 are so that is directed to low, care must be taken with regard to grounding and layout. ...
Page 10
... AD7783BRU −40°C to +85°C AD7783BRU-REEL −40°C to +85°C AD7783BRU-REEL7 −40°C to +85°C AD7783BRUZ −40°C to +85°C AD7783BRUZ-REEL7 −40°C to +85°C EVAL-AD7783EBZ −40°C to +85° RoHS Compliant Part. REVISION HISTORY 10/11—Rev Rev. C Changes to Figure 2 ........................................................................... 5 Changes to Ordering Guide ........................................................... 10 8/04— ...
Page 11
... NOTES Rev Page AD7783 ...
Page 12
... AD7783 NOTES ©2002–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02702-0-10/11(C) Rev Page ...