AD8842AR Analog Devices Inc, AD8842AR Datasheet
AD8842AR
Specifications of AD8842AR
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AD8842AR Summary of contents
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FEATURES Low Cost Replaces 8 Potentiometers 50 kHz 4-Quadrant Multiplying Bandwidth Low Zero Output Error Eight Individual Channels 3-Wire Serial Input 500 kHz Update Data Loading Rate 3 V Output Swing Midscale Preset, Zero Volts Out APPLICATIONS Automatic Adjustment ...
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AD8842–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Symbol STATIC ACCURACY—All Specifications Apply for DACs Resolution N Integral Nonlinearity Error INL Differential Nonlinearity DNL Full-Scale Gain Error G Output Offset V Output Offset Drift TCV VOLTAGE ...
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... CKLD LD LDCK LSB 1 LSB ERROR BAND 1 LSB Figure 3. Timing Diagram Model , V AD8842AN XIND AD8842AR DD SS *XIND = – +85 C. The AD8842 contains 2452 transistors Max– –3– AD8842 DAC REGISTER LOAD ORDERING GUIDE Temperature Package Range* Description 24-Pin 300mil P-DIP N-24 ...
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AD8842 PIN DESCRIPTION Pin Mnemonic Description DAC C Output OUT DAC B Output OUT DAC A Output OUT DAC B Reference Input DAC A ...
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LAST LSB DATA CLK *Data shifted into the SDI pin appears twelve clocks later at the SDO pin. REV. 0 ...
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AD8842–Typical Performance Characteristics +1/2 DACs SUPERIMPOSED 0 – – +3V IN +1/2 0 DACs SUPERIMPOSED –1/2 ...
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Figure 13. Pulse Response—Upper Trace V Lower Trace V @2 V/Div OUT 100 100 50mV 2V Figure 14. Worst ...
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AD8842 2V 100 Figure 19. 10 kHz Sawtooth Waveform, Upper Trace V , Lower Trace V IN –3dB FREQUENCY 300 200 100 0 –100 –200 500 mVp-p INPUT AMPLITUDE –300 –400 ...
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CIRCUIT OPERATION The AD8842 is a general purpose 8-channel signal- level adjustment device designed to replace potentiometers used in the three-terminal connection mode. Eight independent channels of programmable signal level control are available in this 24-pin package ...
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AD8842 ADJUSTING SIGNAL LEVELS The four-quadrant multiplication operation of the AD8842 is shown in Figure 27. For dc operation the equation describing the relationship between V , digital inputs and (D) = (D/128-1) V ...
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CLOCK DATA ADDRESSS CODED DECODE PACKAGE ADDRESS • • • ANALOG CONNECTIONS OMITTED FOR CLARITY Figure 31. Addressing Multiple AD8842 Packages There is some digital feedthrough from the digital input pins. Operating the clock only when the DAC ...
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AD8842 PIN 1 0.210 (5.33) MAX 0.160 (4.06) 0.115 (2.92) 0.022 (0.558) 0.014 (0.356) PIN 1 0.0118 (0.30) 0.0040 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 24-Pin Narrow Body Plastic DIP Package 13 24 0.280 (7.11) 0.240 (6.10) ...