AD5557 Analog Devices, AD5557 Datasheet
AD5557
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AD5557 Summary of contents
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... R1 R2 IOUTA AD5547/AD5557 16-/14-BIT DAC A AGNDA POWER-ON RESET LDAC RS MSB A0, A1 (ONE CHANNEL SHOWN ONLY) 2 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 AD5547/AD5557 FUNCTIONAL BLOCK DIAGRAM COMA REFA V DD DAC A D0..D15 INPUT REGISTER OR REGISTER ...
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... AD5547/AD5557 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configurations and Function Descriptions ........................... 6 Typical Performance Characteristics ........................................... 10 Circuit Operation ........................................................................... 12 REVISION HISTORY 11/11—Rev Rev. C Added Figure 14; Renumbered Sequentially .............................. 11 4/10—Rev Rev. B Changes to Features Section and General Description Section ...
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... WR to LDAC Delay Time = − + REF A Symbol Test Conditions/Comments 16 N AD5547, 1 LSB = 153 μ REF 14 AD5557, 1 LSB = 610 μ REF INL Grade: AD5557C Grade: AD5547B Grade: AD5547C DNL Monotonic I Data = zero scale 25°C OUT ...
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... DAC is tied to the OP97’s −IN pin. Typical values represent average readings OUT = 2.5 ns (10 and are timed from a voltage level of 1 AD8038 I-to-V converter amplifier except for THD where the LWD t LDAC Figure 3. AD5547/AD5557 Timing Diagram Rev Page Data Sheet Min Typ Max 2.7 5.5 10 0.055 0.003 0.5 6.8 −3.5 −78 7 − ...
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... Exposure to absolute −0 0 maximum rating conditions for extended periods may affect ±50 mA device reliability. 150°C −40°C to +125°C ESD CAUTION −65°C to +150°C 215°C 220°C Rev Page AD5547/AD5557 ...
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... AD5547/AD5557 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 3. AD5547 Pin Function Descriptions Pin No. Mnemonic Function D15 Digital Input Data Bits D0 to D15. Signal level must be ≤ Bipolar Offset Resistor A. Accepts up to ± 2-quadrant mode, R OFSA ties to R and the external reference ...
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... RS Active low resets both input and DAC registers. Resets to zero-scale if MSB = 0 and resets to midscale if MSB = 1. Signal level must be ≤V 29 VDD Positive Power Supply Input. The specified range of operation Rev Page AD5547/AD5557 ...
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... FBB 16 MSB 22 R OFSB 17 LDAC CONNECT Figure 5. AD5557 Pin Configuration shorts to the V 1A and 4-quadrant mode shorts to the V COMA becomes –V REFB and 4-quadrant mode shorts to the V COMB shorts to the ...
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... When LDAC and WR are tied together and programmed as a pulse, the data bits are loaded into the input register on the falling edge of the pulse and are then loaded into the DAC register on the rising edge of the pulse register operation Output Update DAC A None DAC A and DAC B DAC B Rev Page AD5547/AD5557 ...
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... CODE (Decimal) Figure 8. AD5557 Integral Nonlinearity Error 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 2048 4096 6144 Figure 9. AD5557 1 2.5V REF T = 25°C A 1.0 0.5 0 –0.5 –1.0 –1 SUPPLY VOLTAGE V Figure 10. Linearity Error vs. Supply Voltage 25°C ...
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... Figure 16 –2 –4 –6 –8 –10 –12 –14 –16 – Figure 17. Rev Page AD5547/AD5557 CH1 5.00V CH2 2.00V M 200ns A CH1 2.70V B CH1 –6.20V 400.00ns Figure 15. Settling Time from Full Scale to Zero Scale –20 – TIME (ns) ...
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... DAC REGISTER WR INPUT REGISTER D15 D14 AD5547 Equivalent R-2R DAC Circuit with Digital Section, One Channel Shown Rev Page the DAC output, is code OUT AD5547/AD5557 output impedance. The and R REF FB power is used primarily by the internal logic to drive DD 2R 80kΩ 4 MSB ...
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... The double buffered feature allows the simultaneous update of several AD5547s/ AD5557s. For the AD5547, the input register is loaded directly from a 16-bit controller bus when WR is brought low. The DAC register is updated with data from the input register when LDAC is brought high ...
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... DAC architecture uses a current-steering R-2R ladder design that requires an external reference and op amp to convert the unipolar mode of the output voltage −V × D/65,536 (AD5547) OUT REF V = −V × D/16,384 (AD5557) OUT REF where D is the decimal equivalent of the input code. + 1µF 0.1µ ...
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... As a result, a positive output can be achieved with an additional op amp, (see Figure 22); the output becomes × D/65,536 (AD5547) OUT REF × D/16,384 (AD5557) OUT REF + 1µF 1µ ...
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... U2A AD8512 C8 –10V +10V COMA REFA OFSA FBA ROFS RFB R1 R2 AD5547/AD5557 16-/14-BIT DAC A U1 LDAC RS MSB A0 Figure 23. 4-Quadrant Multiplying Mode, V OUT Rev Page Data Sheet AD5547 Output vs. Code V OUT +V (32,767/32,768) REF +V (1/32,768) REF 0 – ...
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... COMA REFA OFSA VDD R1 R2 ROFS AD5547/AD5557 16-/14-BIT U1 WR LDAC RS MSB A0 Figure 25. Full-Span Calibration Rev Page AD5547/AD5557 AD5170 provides a one-time programmable +15V C4 1µF FBA C6 C5 0.1µF U2B RFB I OUTA +V OP2177 AGNDA –V C8 1µF C9 0.1µF –15V +5V 1µ ...
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... AD5547/AD5557 REFERENCE SELECTION When selecting a reference for use with the AD55xx series of current output DACs, pay attention to the output voltage, temperature coefficient specification of the reference. Choosing a precision reference with a low output temperature coefficient minimizes error sources. Table 10 lists some of the references available from Analog Devices, Inc ...
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... LFCSP-40 Uncommitted resistors TSOT-8 MSOP-8 TSSOP-28 MSOP-10 MSOP version of AD5453; compatible with AD5443, AD5432, and TSSOP-16 TSSOP-38 MSOP-8 TSSOP-28 TSSOP-16 TSSOP-38 Rev Page AD5547/AD5557 I (Max) (nA) Package(s) B 0.006 SOIC-8, SOT-23-5 0.006 SOIC-8, MSOP-8 10,500 SOIC-8, MSOP-8 750 SOIC-8, SC70-5 100 LFCSP-8, SOIC-8 ...
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... COPLANARITY ORDERING GUIDE 1 Model Resolution (Bits) AD5547BRU 16 AD5547BRU-REEL7 16 AD5547BRUZ 16 AD5547CRUZ 16 AD5547CRUZ-REEL7 16 AD5557CRU 14 AD5557CRU-REEL7 14 AD5557CRUZ RoHS Compliant Part. ©2004–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04452-0-11/11(C) 9.80 9.70 9. 4.50 4.40 4. PIN 1 1.20 MAX ...