AD5764R Analog Devices, AD5764R Datasheet
AD5764R
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... Figure 1 for the functional block diagram). One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 AD5764R AD5764R provides AD5764R includes an AD5764R is ideal for both www.analog.com ©2008–2011 Analog Devices, Inc. All rights reserved. ...
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... AD5764R TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications ..................................................................................... 4 AC Performance Characteristics ................................................ 6 Timing Characteristics ................................................................ 7 Absolute Maximum Ratings .......................................................... 10 Thermal Resistance .................................................................... 10 ESD Caution ................................................................................ 10 Pin Configuration and Function Descriptions ........................... 11 Typical Performance Characteristics ........................................... 13 Terminology .................................................................................... 19 Theory of Operation ...................................................................... 21 DAC Architecture ....................................................................... 21 Reference Buffers ........................................................................ 21 Serial Interface ............................................................................ 21 Simultaneous Updating via LDAC ...
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... GAIN REG D OFFSET REG D REFERENCE LDAC Figure 1. Rev Page RSTOUT RSTIN REFAB VOLTAGE MONITOR AND CONTROL BUFFERS G1 DAC DAC DAC DAC D G2 TEMP BUFFERS SENSOR REFCD TEMP AD5764R ISCC VOUTA AGNDA VOUTB AGNDB VOUTC AGNDC VOUTD AGNDD ...
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... AD5764R SPECIFICATIONS −11 −16.5 V, AGND = DGND = REFGND = PGND = 0 V; REFAB = REFCD = 5 V external 2 5. kΩ LOAD Table 1. Parameter ACCURACY Resolution Relative Accuracy (INL) Differential Nonlinearity (DNL) Bipolar Zero Error Bipolar Zero Tempco 2 Zero-Scale Error ...
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... V min/V max −85 −85 dB typ 3.55 3.55 mA/channel max 2.8 2.8 mA/channel max 1.2 1.2 mA max 275 275 mW typ Rev Page AD5764R Test Conditions/Comments Per pin Per pin ± 5%, sinking 200 µ ± 5%, sourcing 200 µ 2 3 sinking 200 µ ...
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... AD5764R AC PERFORMANCE CHARACTERISTICS −11 −16.5 V, AGND = DGND = REFGND = PGND = 0 V; REFAB = REFCD = 5 V external 2 5. kΩ LOAD Table 2. Parameter DYNAMIC PERFORMANCE 1 Output Voltage Settling Time Slew Rate Digital-to-Analog Glitch Energy Glitch Impulse Peak Amplitude ...
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... SCLK rising edge to SDO valid ns min SYNC rising edge to SCLK falling edge µs max SYNC rising edge to DAC output response time (LDAC = 0) ns min LDAC falling edge to SYNC rising edge ) and timed from a voltage level of 1 Rev Page unless otherwise noted. MAX AD5764R ...
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... AD5764R Timing Diagrams SCLK SYNC t 7 SDIN DB23 LDAC VOUTx LDAC = 0 VOUTx CLR VOUTx SCLK SYNC t 7 DB23 SDIN SDO LDAC DB0 Figure 2. Serial Interface Timing Diagram ...
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... REGISTER TO BE READ DB23 UNDEFINED Figure 4. Readback Timing Diagram 200µ OUTPUT PIN C L 50pF 200µ Figure 5. Load Circuit for SDO Timing Diagram Rev Page DB0 NOP CONDITION DB0 SELECTED REGISTER DATA CLOCKED OUT V (MIN (MAX) OL AD5764R ...
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... AD5764R ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. Transient currents 100 mA do not cause SCR latch-up. Table 4. Parameter Rating AV to AGND, DGND −0 + AGND, DGND +0 − DGND −0 Digital Inputs to DGND − ...
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... LDAC Figure 6. Pin Configuration 1 Asserting this pin sets the data registers to 0x0000. . When programmed as outputs, D0 and D1 are referenced Rev Page AGNDA VOUTA VOUTB AGNDB AGNDC VOUTC VOUTD AGNDD and DGND. CC AD5764R ...
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... AD5764R Pin No. Mnemonic Description 22 VOUTB Analog Output Voltage of DAC B. Buffered output with a nominal full-scale output range of ±10 V. The output amplifier is capable of directly driving a 10 kΩ, 200 pF load. 23 VOUTA Analog Output Voltage of DAC A. Buffered output with a nominal full-scale output range of ±10 V. The output amplifier is capable of directly driving a 10 kΩ ...
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... REFIN – TEMPERATURE (°C) Figure 11. Integral Nonlinearity Error vs. Temperature ± 25° ±12V REFIN – TEMPERATURE (°C) Figure 12. Integral Nonlinearity Error vs. Temperature ± AD5764R = ±12V 60,000 100 100 ...
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... AD5764R 0.15 0.10 0.05 0 –0.05 –0.10 –0. 25°C A –0. ±15V REFIN –0.25 –40 – TEMPERATURE (°C) Figure 13. Differential Nonlinearity Error vs. Temperature ± 0.15 0.10 0.05 0 –0.05 –0.10 –0. 25°C A –0. ±12V REFIN –0.25 –40 –20 ...
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... Figure 22. Bipolar Zero Error vs. Temperature 1 REFIN 1.2 1 0.8 0.6 0 0.2 0 –0.2 –40 – TEMPERATURE (°C) Figure 23. Gain Error vs. Temperature T = 25° 0.5 1.0 1.5 2.0 2.5 3.0 3.5 V (V) LOGIC Figure 24. DI vs. Logic Input Voltage CC AD5764R /V = ±12V 100 = ±12V = ±15V SS 80 100 4.0 4.5 5.0 ...
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... AD5764R 7000 T = 25° REFIN 6000 5000 4000 3000 2000 1000 0 –1000 –10 –5 0 SOURCE/SINK CURRENT (mA) Figure 25. Source and Sink Capability of Output Amplifier with Positive Full Scale Loaded 10,000 T = 25° 9000 REFIN 8000 7000 6000 ±12V ...
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... LOAD CURRENT (µA) Figure 35. REFOUT Load Regulation 1 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 –40 – TEMPERATURE (°C) Figure 36. Temperature Output Voltage vs. Temperature AD5764R 18mV = 25° ±15V DD SS 160 180 200 = 25° ±15V 100 ...
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... AD5764R 5.003 5.002 5.001 5.000 4.999 4.998 4.997 –40 – TEMPERATURE (°C) Figure 37. Reference Output Voltage vs. Temperature 20 DEVICES SHOWN 60 80 100 Figure 38. Reference Output Temperature Drift (−40°C to +85°C) Rev Page MAX: 10ppm/°C TYP: 1.7ppm/°C ...
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... The ratio of the amplitude of the signal at the output of one DAC to a sine wave on the reference input of another DAC measured in decibels (dB). Reference Temperature Coefficient A measure of the change in the reference output voltage with a change in temperature expressed in parts per million per degree Celsius (ppm/°C). Rev Page AD5764R ...
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... AD5764R Digital Crosstalk A measure of the impulse injected into the analog output of one DAC from the digital inputs of another DAC but is measured when the DAC output is not updated specified in nanovolt- seconds (nV-sec) and measured with a full-scale code change on the data bus; that is, from all 0s to all 1s, and vice versa. ...
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... Switch S0 to Switch S11 of the 12-bit R-2R ladder network. REFERENCE BUFFERS The AD5764R can operate with either an external or an internal reference. The reference inputs (REFAB and REFCD) have an input range This input voltage is then used to provide a buffered positive and negative reference for the DAC cores ...
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... LDAC SCLK SYNC LDAC *ADDITIONAL PINS OMITTED FOR CLARITY. Figure 40. Daisy-Chaining the AD5764R Daisy-Chain Operation For systems that contain several devices, the SDO pin can be used to daisy-chain several devices together. This daisy-chain mode can be useful in system diagnostics and in reducing the number of serial interface lines. The first falling edge of SYNC starts the write cycle ...
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... REFIN 65 , 536 is the reference voltage applied at the REFAB and × (32,767/32,768) REFIN × (1/32,768) REFIN × (1/32,768) REFIN × (32,767/32,768) REFIN × (32,767/32,768) REFIN × (1/32,768) REFIN × (1/32,768) REFIN × (32,767/32,768) REFIN AD5764R is given by ...
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... AD5764R REGISTERS Table 9. Input Shift Register Format MSB DB23 DB22 DB21 R/W 0 REG2 Table 10. Input Shift Register Bit Function Descriptions Register Bit Description Indicates a read from or a write to the addressed register R/W REG2, REG1, REG0 Used in association with the address bits, determines if a read or write operation is to the data register, offset register, ...
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... DAC A1 A0 DB15 to DB6 DAC address Don’t care FG4 FG3 Rev Page AD5764R A0 DB15 to DB0 16-bit DAC data DB15 to DB2 DB1 Don’t care CG1 CG0 DB5 DB4 DB3 DB2 DB1 FG5 FG4 ...
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... The required offset register value can be calculated as follows AD5764R 3. Note that this twos complement conversion is not necessary in the case of a positive offset adjustment. The value to be pro- grammed to the offset register is simply the binary representation of the adjustment value. Removing Gain Error The output in the range of − ...
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... VOUTA is measured with respect to AGNDA, a −5 mV error results, enabling the local ground offset adjust feature to adjust VOUTA by +5 mV, thereby eliminating the error. Rev Page contains a 2-bit digital I/O port (D1 and D0). These and DGND. When CC AD5764R incorporates a local ground offset adjust feature AD5764R ...
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... The temperature coefficient of a reference output voltage affects INL, DNL, and TUE. A reference with a tight temperature coeffi- cient specification should be chosen to reduce the dependence AD5764R over of the DAC output voltage on ambient conditions. In high accuracy applications, which have a relatively low noise budget, reference output voltage noise must be considered ...
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... SYNC 1 SCLK 2 3 SDIN 4 SDO AD5764R 5 CLR 6 LDAC 10µF +5V +15V –15V Figure 43. Typical Operating Circuit Rev Page AGNDA 24 VOUTA 23 VOUTA VOUTB 22 VOUTB AGNDB 21 AGNDC 20 VOUTC 19 VOUTC VOUTD 18 VOUTD AGNDD 17 100nF 10µF AD5764R ...
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... ENCODE DECODE V IB ENCODE DECODE V IC ENCODE DECODE V ID ENCODE DECODE Figure 44. Isolated Interface Rev Page Data Sheet AD5764R makes it ideal for isolated using an ADuM1400 iCoupler® product. For more AD5764R is accomplished via SCLK SDIN SYNC V OD ...
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... AD5764R PCB. The evaluation board interfaces to the USB interface of the PC. Software that allows easy program- ming of the AD5764R is available with the evaluation board. The software runs on any PC that has Microsoft® Windows® 2000/XP installed. Rev Page AD5764R ...
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... Function 1 AD5764RBSUZ Quad 16-Bit DAC AD5764RBSUZ-REEL7 Quad 16-Bit DAC AD5764RCSUZ Quad 16-Bit DAC AD5764RCSUZ-REEL7 Quad 16-Bit DAC EVAL-AD5764REBZ RoHS Compliant Part. ©2008–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06064-0-10/11(D) 1 ...