AD7819YRU Analog Devices Inc, AD7819YRU Datasheet
AD7819YRU
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AD7819YRU Summary of contents
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GENERAL DESCRIPTION The AD7819 is a high speed, microprocessor-compatible, 8-bit analog-to-digital converter with a maximum throughput of 200 kSPS. The converter operates off a single 2 5.5 V supply and contains a 4.5 µs successive approximation A/D ...
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AD7819–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE 1 Signal to (Noise + Distortion) Ratio 1 Total Harmonic Distortion (THD) 1 Peak Harmonic or Spurious Noise 2 Intermodulation Distortion 2nd Order Terms 3rd Order Terms DC ACCURACY Resolution Minimum Resolution for Which No Missing ...
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... Bus Relinquish Time after RD High. ns (max) Data Bus Relinquish to Falling Edge of CONVST Delay. ns (min) , quoted in the Timing Characteristics is the true bus relinquish time OUTPUT + Model AD7819YN AD7819YR AD7819YRU ± 1 LSB AD7819 = 5 V ± 10% and DD 200 1.6V PIN C L 50pF 200 ORDERING GUIDE Linearity ...
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AD7819 Pin No. Mnemonic Description 1 V Reference Input, 1 REF 2 V Analog Input GND Analog and Digital Ground. Convert Start. A low-to-high transition on this pin initiates a 1.5 ...
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TERMINOLOGY Signal to (Noise + Distortion) Ratio This is the measured ratio of signal to (noise + distortion) at the output of the A/D converter. The signal is the rms amplitude of the fundamental. Noise is the rms sum of ...
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AD7819 CIRCUIT DESCRIPTION Converter Operation The AD7819 is a successive approximation analog-to-digital converter based around a charge redistribution DAC. The ADC can convert analog input signals in the range ures 2 and 3 below show simplified ...
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During the acquisition phase the sampling capacitor must be charged to within a 1/2 LSB of its final value. The time it takes to charge the sampling capacitor (T CHARGE lowing formula: = 6.2 × (R2 + 125 Ω) × ...
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AD7819 Typical Performance Characteristics 10 1 0.1 0. THROUGHPUT – kSPS 0 AD7819 –10 2048 POINT FFT SAMPLING 136.054kHz – –30 –40 –50 –60 –70 –80 –90 –100 ...
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EXT CONVST t POWER-UP INT CONVST BUSY CS/RD DB7–DB0 EXT CONVST t POWER-UP INT CONVST BUSY CS/RD DB7–DB0 PARALLEL INTERFACE The parallel interface of the AD7819 is eight bits wide. The out- put data buffers are activated when both CS ...
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AD7819 MICROPROCESSOR INTERFACING The parallel port on the AD7819 allows the device to be inter- faced to a range of many different microcontrollers. This section explains how to interface the AD7819 with some of the more common microcontroller parallel interface ...
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OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 16-Lead Plastic DIP (N-16) 0.840 (21.33) 0.745 (18.93 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.130 0.160 (4.06) (3.30) 0.115 (2.93) MIN ...