AD7399 Analog Devices, AD7399 Datasheet
AD7399
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AD7399 Summary of contents
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... For 8-bit resolution applications, see the pin-compatible AD7304 product. The AD7398/AD7399 are specified over the extended industrial (−40°C to +125°C) temperature range. Parts are available in 16-lead, wide body SOIC and ultracompact, thin, 1.1 mm < ...
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... Timing Diagrams .......................................................................... 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin Configuration And Function Descriptions ............................ 7 Input Registers .................................................................................. 8 AD7398 Serial Input Register Data Format .............................. 8 AD7399 Serial Input Register Data Format .............................. 8 Terminology ...................................................................................... 9 REVISION HISTORY 1/11—Rev Rev. C Added Automotive Model and Information .............. Throughout 12/09—Rev Rev. B Changes to Ordering Guide .......................................................... 21 6/06— ...
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... FFF to 000 ±0.1% of full scale Code 7FF to 800 to 7FF 1 p-p, data = 000 REF REF 100 kHz Rev Page AD7398/AD7399 ± 10% ±5 V ± 10 ±1.5 ±1.5 ±1 ±1 7 ±2.5 ±2.5 ±2.5 1.5 1.5 0 ...
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... Typicals represent average readings measured at 25°C. All input control signals are specified with The settling time specification does not apply for negative going transitions within the last 3 LSBs of ground. AD7399 10-BIT VOLTAGE OUTPUT DAC ...
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... V) and timed from a voltage level of 1 D11 D10 Figure 3. AD7398 Timing Diagram (AD7399 with SDI = 14 Bits Only CSH Figure 4. Continuous Clock Timing Diagram Rev Page AD7398/AD7399 ± 10% ±5 V ± 10 ...
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... AD7398/AD7399 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Rating V to GND −0 GND +0.3 V, − GND REF SS Logic Inputs to GND −0 GND V − 0 OUT SS I Short Circuit to GND 50 mA OUT Thermal Resistance (θ 158°C/W ...
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... CLK Figure 5. Pin Configuration Input Register Function No effect No effect Latched Latched Updated with shift register contents Latched Latched Rev Page AD7398/AD7399 pin or V pin pin or V pin pin or V pin pin or V pin ...
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... Bit Position B12 and Bit Position B13 are the SD and SA power shutdown control bits set to Logic 1, all DACs are placed in the power shutdown mode set to Logic 1, the address decoded by Bit B10 and Bit B11 (A0 and A1) determine the DAC channel that is placed in the power shutdown state. Table 6. AD7398/AD7399 Address Decode Control SA ...
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... DAC VFS Reference Feedthrough (V This is a measure of the feedthrough from the V DAC output when the DAC is loaded with all 0s. A 100 kHz p-p is applied p-p. Rev Page AD7398/AD7399 ) DF is varied by ±10 OUT REF input to the REF ...
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... CODE (Decimal 25° +5V –5V +2.5V SS REF 0 128 256 384 512 640 768 CODE (Decimal) Figure 9. AD7399 DNL vs. Code ( °C) A AD7398 – +2.5V REF T = 25°C A 3584 4096 DAC D 896 1024 DAC C 896 ...
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... 3584 4096 0.4 AD7398 – 25°C A 100 3584 4096 Rev Page AD7398/AD7399 AD7398/AD7399 T = 25°C A SINKING CURRENT INTO V OUT V = +3V +5V – +5V SOURCING CURRENT FROM V OUT V = +5V – ...
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... AD7398/AD7399 100 TIME (100ns/DIV) Figure 16. AD7398 Digital Feedthrough V = +5V –5V + REF DLY 54µs 100 TIME (5µs/DIV) Figure 17. AD7398 Large Signal Settling Time V = +5V –5V + REF A2 0.8V DLY 67µs 100 TIME (2µs/DIV) Figure 18 ...
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... TEMPERATURE (°C) Figure 23. Shutdown Current vs. Temperature 1.00 AD7398 SAMPLE SIZE = 135 V REF 0.75 0.50 0.25 0 150 0 100 120 140 Rev Page AD7398/AD7399 = 2.5V CODE = 0xFFF CODE = 0x000 100 200 300 400 500 HOURS OF OPERATION AT 150°C Figure 24. AD7398 Long-Term Drift 600 ...
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... Do not use the digital 5 V supply. The reference input resistance is code dependent, exhibiting worst case 35 kΩ for AD7398 when the DAC is loaded with alternating codes 010101010101. Similarly, the reference input resistance is 40 kΩ for AD7399 when the DAC is loaded with 0101010101. Rev Page ...
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... CS pin returns to the logic high state, and extra data bits are ignored. For the AD7399, only the last 14 bits clocked into the serial register are interrogated when the CS pin returns to the logic high state. ...
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... For the AD7398, transmission is initiated by writing a word to the Tx register after the SPORT has been enabled. For the AD7399, the first two bits are don’t care as the AD7399 keeps the last 14 bits. Similarly, transmission is initiated by writing a word to the Tx register after the SPORT has been enabled ...
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... DAC. In addition, 80C51 outputs two byte words/16 bits of data. Thus for AD7399, the first two bits, after rearrangement, should be don’t care as they are dropped from the 14-bit word of the AD7399. ...
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... Figure 35. Overlapping Windows Comparator V+ 10kΩ WINDOW 3 V+ 10kΩ WINDOW 4 The nonoverlapping circuit employs one AD7398/AD7399 and V+ ten comparators to achieve five voltage windows. These windows 10kΩ range between V WINDOW 5 Similarly, the overlapping circuit employs six comparators to achieve three overlapping windows (see Figure 36). ...
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... PROGRAMMABLE DAC REFERENCE VOLTAGE With the flexibility of the AD7398/AD7399, one of the internal DACs can be used to control a common programmable V for the remainder of the DACs. The circuit configuration is shown in Figure 37. The relationship dependent upon the digital code and the ratio of REFX ...
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... AD7398/AD7399 OUTLINE DIMENSIONS 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.15 0.05 10.50 (0.4134) 10.10 (0.3976 7.60 (0.2992) 7.40 (0.2913) 1 10.65 (0.4193) 8 10.00 (0.3937) 1.27 (0.0500) BSC 2.65 (0.1043) 2.35 (0.0925) SEATING 0.51 (0.0201) 0.33 (0.0130) PLANE 0.31 (0.0122) 0.20 (0.0079) COMPLIANT TO JEDEC STANDARDS MS-013-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. ...
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... AD7399BR-REEL 10 AD7399BRZ 10 AD7399BRZ-REEL 10 AD7399BRU 10 AD7399BRU-REEL7 10 AD7399BRUZ 10 AD7399BRUZ-REEL7 RoHS Compliant Part Qualified for Automotive Applications. The AD7398 contains 3254 transistors. The die size measures 108 mils × 144 mils. AUTOMOTIVE PRODUCTS The AD7398WBRUZ-RL7 model is available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that this automotive model may have specifications that differ from the commercial models ...
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... AD7398/AD7399 NOTES Rev Page ...
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... NOTES Rev Page AD7398/AD7399 ...
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... AD7398/AD7399 NOTES ©2000–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02179-0-1/11(C) Rev Page ...