AD5446YRMZ Analog Devices Inc, AD5446YRMZ Datasheet
AD5446YRMZ
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AD5446YRMZ Summary of contents
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FEATURES 12 MHz multiplying bandwidth INL of ± 0.5 LSB at 12 bits Pin-compatible 12-/14-bit current output DAC 2 5.5 V supply operation 10-lead MSOP package ±10 V reference input 50 MHz serial interface 2.7 MSPS update rate ...
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AD5444/AD5446 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. ...
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SPECIFICATIONS Temperature range for Y version: −40°C to +125°C. All specifications T DD REF OUT unless otherwise noted. DC performance measured with OP177, and ...
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AD5444/AD5446 Parameter 1 DYNAMIC PERFORMANCE Reference Multiplying Bandwidth Multiplying Feedthrough Error Output Voltage Settling Time Measured to ± Measured to ± Measured to ± Digital Delay 10%-to-90% Settling Time Digital-to-Analog Glitch ...
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TIMING CHARACTERISTICS All input signals are specified with (10 temperature range for Y version: −40°C to +125°C; all specifications T REF ...
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AD5444/AD5446 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. Transient currents 100 mA do not cause SCR latch-up. Table 3. Parameter V to GND GND REF ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description DAC Current Output. OUT DAC Analog Ground. This pin should normally be tied to the analog ground of the system. ...
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AD5444/AD5446 TYPICAL PERFORMANCE CHARACTERISTICS 0 25° 10V REF 0.3 DD 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 512 1024 1536 2048 2560 CODE Figure 6. INL vs. Code (12-Bit ...
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T = 25° 10V REF 0.6 DD 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 512 1024 1536 2048 2560 3072 CODE Figure 12. TUE vs. Code (12-Bit DAC) 2.0 T ...
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AD5444/AD5446 2 25°C A 2.0 1 1.0 0 INPUT VOLTAGE (V) Figure 18. Supply Current vs. Logic Input Voltage 0.7 0.6 0 ...
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T = 25° –3 – ±2V, AD8038 C = 1pF REF COMP V = ±2V, AD8038 C = 1.5pF REF COMP V = ±15V, AD8038 C = 1pF REF COMP V ...
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AD5444/AD5446 0 –20 –40 –60 –80 –100 –120 0 100k 200k 300k FREQUENCY (Hz) Figure 30. Wideband SFDR , kHz, Clock = 1 MHz OUT 0 –20 –40 –60 –80 –100 –120 0 100k 200k 300k FREQUENCY ...
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FREQUENCY (Hz) Figure 34. Narrow-Band IMD kHz and 25 kHz, Clock = 1 MHz OUT 0 –10 –20 –30 –40 –50 –60 ...
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AD5444/AD5446 TERMINOLOGY Relative Accuracy or Integral Nonlinearity Relative accuracy or integral nonlinearity is a measure of the maximum deviation from a straight line passing through the endpoints of the DAC transfer function measured after adjusting for zero scale ...
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GENERAL DESCRIPTION DAC SECTION The AD5444/AD5446 are 12-bit and 14-bit current output DACs consisting of segmented (4 bits), inverting R– 2R ladder configurations. A simplified diagram for the 12-bit AD5444 is shown in Figure 37 REF ...
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AD5444/AD5446 Bipolar Operation In some applications, it may be necessary to generate a full 4-quadrant multiplying operation bipolar output swing. This can easily be accomplished by using another external amplifier and some external resistors, as shown in Figure ...
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SINGLE-SUPPLY APPLICATIONS Voltage Switching Mode of Operation Figure 40 shows the AD5444/AD5446 DACs operating in the voltage switching mode. The reference voltage (V to the I 1 pin connected to AGND, and the output OUT OUT voltage ...
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AD5444/AD5446 REF OUT GND NOTES: 1. ADDITIONAL PINS OMITTED FOR CLARITY. Figure 43. Current-Steering DAC Used as a Divider or Programmable Gain Element reduced, the output ...
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Table 7. Suitable Analog Devices Precision References Initial Tolerance Part No. Output Voltage (V) Accuracy (%) ADR01 10 0.05 ADR01 10 0.05 ADR02 5 0.06 ADR02 5 0.06 ADR03 2.5 0.10 ADR03 2.5 0.10 ADR06 3 0.10 ADR06 3 0.10 ...
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AD5444/AD5446 SERIAL INTERFACE The AD5444/AD5446 have an easy-to-use, 3-wire interface that is compatible with SPI, QSPI, MICROWIRE, and DSP inter- face standards. Data is written to the device in 16-bit words. This 16-bit word consists of two control bits, 12 ...
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MICROPROCESSOR INTERFACING Microprocessor interfacing to the AD5444/AD5446 DAC is through a serial bus that uses standard protocol compatible with microcontrollers and DSP processors. The communica- tions channel is a 3-wire interface consisting of a clock signal, a data signal, and ...
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AD5444/AD5446 80C51/80L51 to AD5444/AD5446 Interface A serial interface between the DAC and the 80C51/80L51 is shown in Figure 50. TxD of the 80C51/80L51 drives SCLK of the DAC serial interface, while RxD drives the serial data line, SDIN. P1.1 is ...
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PCB LAYOUT AND POWER SUPPLY DECOUPLING In any circuit where accuracy is important, careful considera- tion of the power supply and ground return layout helps to ensure the rated performance. The printed circuit boards on which the AD5444/AD5446 are mounted ...
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AD5444/AD5446 Figure 54. Schematic of the AD5444/AD5446 Evaluation Board Rev Page 04588-070 ...
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Figure 55. Component-Side Artwork Figure 56. Silkscreen—Component-Side Artwork (Top) Rev Page AD5444/AD5446 ...
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AD5444/AD5446 Figure 57. Solder-Side Artwork Rev Page ...
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OVERVIEW OF AD54xx AND AD55xx CURRENT OUTPUT DEVICES Table 12. Part Number Resolution (Bits) Number of DACs AD5424 8 1 AD5426 8 1 AD5428 8 2 AD5429 8 2 AD5450 8 1 AD5432 10 1 AD5433 10 1 AD5439 10 ...
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... AD5444YRMZ-REEL 12 1 AD5444YRMZ-REEL7 12 AD5446YRM 14 AD5446YRM-REEL 14 AD5446YRM-REEL7 14 1 AD5446YRMZ 14 1 AD5446YRMZ-REEL 14 1 AD5446YRMZ-REEL7 14 1 EVAL-AD5444EBZ 1 EVAL-AD5446EBZ RoHS Compliant Part. ©2004–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.10 3.00 2. 5.15 3.10 4.90 3 ...