AD7545A Analog Devices, AD7545A Datasheet
AD7545A
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AD7545A Summary of contents
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... DIP and Surface Mount Packages Low Cost GENERAL DESCRIPTION The AD7545A, a 12-bit CMOS multiplying DAC with internal data latches improved version of the industry standard AD7545. This new design features a WR pulse width of 100 ns, which allows interfacing to a much wider range of fast 8-bit and 16-bit microprocessors loaded by a single 12-bit-wide word under the control of the CS and WR inputs ...
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... AD7545A–SPECIFICATIONS Parameter Version STATIC PERFORMANCE Resolution All Relative Accuracy Differential Nonlinearity All Gain Error Gain Temperature Coefficient All ∆Gain/∆Temperature All 2 DC Supply Rejection ∆Gain/∆V All DD Output Leakage Current at OUT1 DYNAMIC PERFORMANCE ...
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... AD7545ABQ –25°C to +85°C AD7545ACQ –25°C to +85°C AD7545ABE –25°C to +85°C AD7545ACE –25°C to +85°C AD7545ATQ –55°C to +125°C AD7545AUQ –55°C to +125°C AD7545ATE –55°C to +125°C AD7545AUE –55°C to +125°C NOTES 1 To order MIL-STD-883, Class B process parts, add /883B to part number ...
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... CMOS compatible only, i.e., 1.5 V and 13.5 V. BASIC APPLICATIONS Figures 4 and 5 show simple unipolar and bipolar circuits using the AD7545A. Resistor R1 is used to trim for full scale. The grades have a guaranteed maximum gain error of ± 1 LSB at +25°C, and in many applications it should be possible to dispense with gain trim resistors altogether ...
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... The simplest method of ensuring that voltages at AGND and DGND are equal is to tie AGND and DGND together at the AD7545A. In more complex systems where the AGND and DGND intertie is on the backplane recom- mended that two diodes be connected in inverse parallel between the AD7545A AGND and DGND pins (1N914 or equivalent). – ...
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... This type of crosstalk is minimized by using volts. However, great care should DD be taken to ensure that the +5 V used to power the AD7545A is free from digitally induced noise. Temperature Coefficients: The gain temperature coefficient of the AD7545A has a maximum value of 5 ppm/°C and a typi- cal value of 2 ppm/° ...
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... D/A converter is constant. Note, however, that since the temperature coefficient of the D/A reference input resistance is typically –300 ppm/°C, applications which experience wide temperature variations may require a buffer amplifier to generate the +2 the AD7545A V pin. Other output voltage ranges can be obtained by changing REF R4 to shift the zero point and (R1 + R2) to change the slope, or gain of the D/A transfer function ...
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... AD7545A 20-Lead SOIC (R-20) 0.5118 (13.00) 0.4961 (12.60 PIN 1 0.1043 (2.65) 0.0926 (2.35) 0.0500 0.0118 (0.30) 0.0192 (0.49) SEATING 0.0125 (0.32) (1.27) 0.0040 (0.10) 0.0138 (0.35) PLANE BSC 0.0091 (0.23) 20-Lead Cerdip (Q-20) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 0.0291 (0.74) x 45° 0.0098 (0.25) 0.0500 (1.27) 8° 0° 0.0157 (0.40) 20-Terminal Leadless Ceramic Chip Carrier ...