EVAL-AD5680EB AD [Analog Devices], EVAL-AD5680EB Datasheet
EVAL-AD5680EB
Related parts for EVAL-AD5680EB
EVAL-AD5680EB Summary of contents
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FEATURES Single 18-bit nanoDAC 18-bit monotonic 12-bit accuracy guaranteed Tiny 8-lead SOT-23 package Power-on reset to zero scale/midscale 4 5.5 V power supply Serial interface Rail-to-rail operation SYNC interrupt facility Temperature range −40°C to +105°C APPLICATIONS Closed-loop process ...
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AD5680 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Related Devices ................................................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics..................................................................... 4 Absolute Maximum Ratings............................................................ 5 ESD ...
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SPECIFICATIONS kΩ to GND Table 1. Parameter 2 STATIC PERFORMANCE Resolution Relative Accuracy 3 Differential Nonlinearity Zero-Code Error Full-Scale Error Offset Error Gain Error Zero-Code Error Drift ...
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AD5680 TIMING CHARACTERISTICS All input signals are specified with ns/V (10 5.5 V; all specifications T DD Table 2. Limit MIN MAX ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to GND GND OUT V to GND GND REF Digital Input Voltage to GND Operating Temperature Range Industrial (B Version) ...
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AD5680 PIN CONFIGURATION AND FUNCTION DESCRIPTION Table 4. Pin Function Descriptions Pin No. Mnemonic Function 1 V Power Supply Input. The part can be operated from 4 5 Reference Voltage Input. REF 3 ...
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TYPICAL PERFORMANCE CHARACTERISTICS REF T = 25° –8 –16 –24 –32 –40 0 40k 80k 120k CODE Figure 4. Typical INL Plot 1 ...
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AD5680 450 REF T = 25°C A 400 350 300 250 200 150 100 4000 8000 12000 CODE Figure 10. Supply Current vs. Code 350 ...
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REF 2.502250 T = 25°C A 2.502000 13nS/SAMPLE NUMBER 1 LSB CHANGE AROUND 2.501750 MIDSCALE (0x20000 TO 0x1FFFF) 2.501500 GLITCH IMPULSE = 2.723nV.s 2.501250 2.501000 2.500750 2.500500 2.500250 2.500000 2.499750 2.499500 2.499250 2.499000 ...
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AD5680 TERMINOLOGY Relative Accuracy or Integral Nonlinearity (INL) For the DAC, relative accuracy or integral nonlinearity is a measurement of the maximum deviation, in LSBs, from a straight line passing through the endpoints of the DAC transfer function. Figure 4 ...
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THEORY OF OPERATION DAC SECTION The AD5680 DAC is fabricated on a CMOS process. The architecture consists of a string DAC followed by an output buffer amplifier. Figure 22 shows a block diagram of the DAC architecture REF ...
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AD5680 SERIAL INTERFACE The AD5680 has a 3-wire serial interface ( SYNC , SCLK, and DIN) that is compatible with SPI, QSPI, and MICROWIRE interface standards as well as with most DSPs. See Figure 2 for a timing diagram of ...
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MICROPROCESSOR INTERFACING AD5680 to Blackfin® ADSP-BF53x Interface Figure 27 shows a serial interface between the AD5680 and the Blackfin ADSP-BF53x microprocessor. The ADSP-BF53x processor family incorporates two dual-channel synchronous serial ports, SPORT1 and SPORT0, for serial and multiprocessor communications. Using ...
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AD5680 APPLICATIONS CLOSED-LOOP APPLICATIONS The AD5680 is suitable for closed-loop low bandwidth applications. Ideally, the system bandwidth acts as a filter on the DAC output. (See the Filter section for details of the DAC output prefiltering and postfiltering.) The DAC ...
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CHOOSING A REFERENCE FOR THE AD5680 To achieve the optimum performance from the AD5680, choose a precision voltage reference carefully. The AD5680 has only one reference input The voltage on the reference REF input is used to supply ...
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AD5680 USING A REFERENCE AS A POWER SUPPLY FOR THE AD5680 Because the supply current required by the AD5680 is extremely low, an alternative option is to use a voltage reference to supply the required voltage to the part (see ...
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... OUTLINE DIMENSIONS INDICATOR 0.15 MAX ORDERING GUIDE Model Temperature Range AD5680BRJZ-1500RL7 1 −40°C to +105°C 1 AD5680BRJZ-1REEL7 −40°C to +105°C 1 AD5680BRJZ-2500RL7 −40°C to +105°C 1 AD5680BRJZ-2REEL7 −40°C to +105°C EVAL-AD5680EB Pb-free part. 2.90 BSC 1.60 BSC 2.80 BSC PIN 1 0.65 BSC 1.95 1.30 BSC 1 ...
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AD5680 NOTES Rev Page ...
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NOTES Rev Page AD5680 ...
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AD5680 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05854–0–6/06(0) T Rev Page ...