DAC8408 Analog Devices, DAC8408 Datasheet
DAC8408
Specifications of DAC8408
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DAC8408 Summary of contents
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... R/W. The DAC8408 is bus compatible with most 8-bit microprocessors, including the 6800, 8080, 8085, and Z80. The DAC8408 oper- ates on a single +5 volt supply and dissipates less than 20 mW. The DAC8408 is manufactured using PMI’s highly stable, thin-film resistors on an advanced oxide-isolated, silicon-gate, CMOS process. PMI’ ...
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... Data Strobe to Output Valid Time Output Data to Deselect Time Read Select to Strobe Set-Up Time Read Select to Strobe Hold Time Specifications subject to change without notice REF = +70 C apply for DAC8408GP, unless otherwise noted. A Symbol Conditions N INL DAC8408A/E/G DAC8408B/F/H DNL DAC8408A/E/G DAC8408B/F/H ...
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... Industrial Grade (ET, FT, FP, FPC, FS) . – +85 C Military Grade (AT, BT – +125 C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150 C Storage Temperature . . . . . . . . . . . . . . . . . . . – +150 C Lead Temperature (Soldering, 10 sec +300 C REV REF = +70 C apply for DAC8408GP, unless otherwise noted. A Symbol Conditions + ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the DAC8408 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... C, unless otherwise noted. Specifications apply for REF OUT A Conditions Using Internal R FB Using Internal R FB All Digital Inputs = +10 V 1.6 mA Sink 400 A Source –5– DAC8408 DAC8408G Limits Units 8 Bits min 1/2 LSB max 1 LSB max 1 LSB max 0.001 %FSR/% max 30 nA max ...
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... DAC8408 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs. Logic Level Analog Crosstalk vs. Frequency –6– REV. A ...
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... DAC from another DAC’s reference input expressed as a ratio in dB. DIGITAL CROSSTALK Digital Crosstalk is the glitch energy transferred to the output of one DAC due to a change in digital input code from other DACs specified in nVs OUT 1A OUT 1B –7– DAC8408 to REF ...
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... DAC8408 CIRCUIT INFORMATION The DAC8408 combines four identical 8-bit CMOS DACs onto a single monolithic chip. Each DAC has its own reference input, feedback resistor, and on-board data latches. It also fea- tures a read/write function that serves as an accessible memory location for digital-input data words. The DAC’s three-state readback drivers place the data word back onto the data bus ...
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... Low State High State Irrelevant –9– DAC8408 Mode DAC WRITE A WRITE B WRITE C WRITE D READ A READ B READ C READ D WRITE A&C WRITE B&D HOLD A/B/C/D HOLD A/B/C/D HOLD A/B/C/D ...
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... DAC8408 BASIC APPLICATIONS Some basic circuit configurations are shown in Figures 6 and 7. Figure 6 shows the DAC8408 connected in a unipolar configu- ration (2-Quadrant Multiplication), and Table I shows the Code Table. Resistors R1, R2, R3, and R4 are used to trim full scale output. Full-scale output voltage = V REF or V (255/256) with all digital inputs high ...
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... REF REF 128 REV. A APPLICATION HINTS General Ground Management transient voltages be- tween AGND and DGND can appear as noise at the DAC8408’s analog output. Note that in Figures 5 and OUT 2C 127 ommended that AGND and DGND be tied together at the +V REF 128 DAC8408 socket ...
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... DAC8408 SINGLE SUPPLY, VOLTAGE OUTPUT OPERATION The DAC8408 can be connected with a single +5 V supply to produce DAC output voltages from +1 Figure 8, the DAC8408 R-2R ladder is inverted from its normal connec- tion. A +1.500 V reference is connected to the current output pin and the normal V ...
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... Hz (1 LSB ON full-scale frequency of 19.132 kHz (all bits ON), which is equivalent to a 256 to 1 dynamic range. The frequency is determined by f the ladder resistance ( the DAC8408, and C is 1000 pF. IN Note that from device to device, the resistance R some tuning may be necessary. ...
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... DAC8408 Figure 11. A Digitally Programmable, Low-Distortion Sinewave Oscillator A LOW-DISTORTION, PROGRAMMABLE SINEWAVE OSCILLATOR By varying the previous state-variable filter topology slightly, one can obtain a very low distortion sinewave oscillator with programmable frequency feature as shown in Figure 11. Again, DAC B and DAC D in tandem control the oscillating frequency based on the relationship f = 1/2 RC ...
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