AD7397 Analog Devices, AD7397 Datasheet
AD7397
Specifications of AD7397
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AD7397 Summary of contents
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... The AD7396/AD7397 are specified for operation over the ex- tended industrial (– +85 C) temperature range. The AD7397AR is specified for the – +125 C automotive temperature range. AD7396/AD7397s are available in plastic DIP, and 24-lead SOIC packages. The AD7397ARU is avail- able for ultracompact applications in a thin 1 ...
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... AD7396/AD7397–SPECIFICATIONS AD7396 12-BIT ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE 1 Resolution 2 Relative Accuracy 2 Relative Accuracy 2 Differential Nonlinearity 2 Differential Nonlinearity Zero-Scale Error Zero-Scale Error Full-Scale Voltage Error Full-Scale Voltage Error 3 Full-Scale Tempco REFERENCE INPUT V Range REF Input Resistance 3 Input Capacitance ANALOG OUTPUT Output Current (Source) ...
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... DD_SD Power Dissipation P DISS Power Supply Sensitivity PSS NOTES 1 One LSB = V /4096 V for the 10-bit AD7397. REF 2 The first two codes (000 , 001 ) are excluded from the linearity error measurement These parameters are guaranteed by design and not subject to production testing. ...
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... AD7396/AD7397 t CSW A D0–D11 LDA, LDB t RSW OUT Figure 2. Timing Diagram CS LDA LDB RS A ^Denotes positive edge. The SHDN pin has no effect on the digital interface data loading; however, while in the SHDN state (SHDN = 0) the output amplifiers V exhibit an open circuit condition. Note, the LDx inputs are level-sensitive, the respective DAC registers are in a transparent state when LDx = “ ...
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... Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. 0 Maximum Junction Temperature (T Operating Temperature Range . . . . . . . . . . . – +85 C AD7397AN, AD7397AR Only . . . . . . . . – +125 C DD Storage Temperature Range . . . . . . . . . . . . – +150 C + 0.3 V Lead Temperature DD N-24 (Soldering, 10 sec) ...
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... Twelve Parallel Input Data Bits. D11 = MSB Pin 18 LSB Pin 7, AD7396. No Connect Pins 7 and 8 On the AD7397 Only. Ten Parallel Input Data Bits MSB Pin 18 LSB Pin 9, AD7397 Only. Chip Select Latch Enable, Active Low. DAC Input Register Address Select DACA = 1 or DACB = 0. ...
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... REF 0.6 0 – 0.2 0.0 –0.2 –0.4 –0 + –0.8 –1.0 0 128 256 384 512 640 768 896 1024 CODE – Decimal Figure 5. AD7397 INL vs. Code and Temperature 200 UNITS AD7396 V = +2. +2.5V REF T = – + –55 –50 – ...
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... AD7396/AD7397 0 –5 – +3V DD –15 CODE = FULL SCALE –20 –25 –30 –35 –40 –45 –50 100 1k 10k 100k 1M FREQUENCY – Hz Figure 13. Reference Multiplying Gain vs. Frequency 5 + 4.5 4.0 3.5 V FROM LOGIC LOW TO HIGH 3.0 2.5 2.0 V FROM LOGIC HIGH TO LOW 1.5 1 – Figure 16. Logic Threshold Voltage vs ...
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... The parallel data interface DD consists of 12 data bits, DB0–DB11, for the AD7396, 10 data bits, DB0–DB9, for the AD7397, and a CS write strobe pin is available to reset the DAC register to zero scale. This function is useful for power-on reset or system failure recovery to a known state ...
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... AD7396/AD7397 power supply. If this mode of interface is used, make sure that the V of the 5 V CMOS meets the V OL ment of the AD7396/AD7397 operating See Figure 16 for a graph for digital logic input threshold versus operating V supply voltage ...
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... A of maximum current consumption. Con- nection of the equal-value 470 k resistors results in a differen- tial amplifier mode of operation with a voltage gain of two, which produces a circuit output span of ten volts, that is, pin – the AD7397 DAC is programmed from zero- DD code 000 H put voltage V output voltage V Equation 3 ...
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... AD7396/AD7397 I < 262 A SY +5V 470k 470k 200 A V REF DD OP196 V AD7397 C OUTA GND ONLY ONE CHANNEL SHOWN. DIGITAL INTERFACE CIRCUITRY OMITTED FOR CLARITY. Figure 30. Bipolar Output Operation 24-Lead SOIC Package (R-24) 0.6141 (15.60) 0.5985 (15.20 PIN 1 0.1043 (2.65) 0.0926 (2.35) 0.0500 0.0192 (0.49) 0.0118 (0.30) SEATING (1 ...