AD7703ARZ Analog Devices Inc, AD7703ARZ Datasheet
AD7703ARZ
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AD7703ARZ Summary of contents
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FEATURES Monolithic 16-Bit ADC 0.0015% Linearity Error On-Chip Self-Calibration Circuitry Programmable Low-Pass Filter 0 Corner Frequency +2 2.5 V Analog Input Range 4 kSPS Output Data Rate Flexible Serial Interface Ultralow ...
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AD7703–SPECIFICATIONS BP/ MODE = + Source Resistance = Parameter A/S Version STATIC PERFORMANCE Resolution 20 Integral Nonlinearity ±0.0015 MIN MAX 25°C ±0.003 ±0.003 MIN MAX Differential ...
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Parameter A/S Version POWER REQUIREMENTS 8 DC Power Supply Currents Analog Positive Supply (AI ) 2.7 DD Digital Positive Supply ( Analog Negative Supply (AI ) 2.7 SS Digital Negative Supply ( Power ...
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AD7703 TIMING CHARACTERISTICS Limit MIN MAX Parameter (A, B Versions 200 CLKIN 5 200 1000 3 ...
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DATA SDATA VALID Figure 4. SSC Mode Data Hold Time DRDY SCLK HI-Z DB19 DB18 SDATA Figure 5a. SEC Mode Timing Diagram DEFINITION OF TERMS Linearity Error This ...
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AD7703 PIN CONFIGURATION DIP, CERDIP, SOIC MODE 1 CLKOUT 2 3 CLKIN 4 SC1 AD7703 5 DGND TOP VIEW (Not to Scale AGND REF Pin No. Mnemonic Description ...
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GENERAL DESCRIPTION The AD7703 is a 20-bit A/D converter with on-chip digital filtering, intended for the measurement of wide dynamic range, low frequency signals such as those representing chemical, physical, or biological processes. It contains a charge-balancing ( - ) ...
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AD7703 DIGITAL FILTERING The AD7703’s digital filter behaves like an analog filter, with a few minor differences. First, since digital filtering occurs after the analog-to-digital conversion, it can remove noise injected during the conversion process. Analog filtering cannot do this. ...
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Table II. Resonator Loading Capacitors Resonators C1 (pF) Ceramic 200 kHz 330 455 kHz 100 1.0 MHz 50 2.0 MHz 20 Crystal 2.000 MHz 30 3.579 MHz 20 4.096 MHz None The input sampling frequency, output data rate, filter character- ...
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AD7703 Initiating Calibration Table III illustrates the calibration modes available in the AD7703. Not shown in the table is the function of the BP/UP pin, which determines whether the converter has been calibrated to mea- sure bipolar or unipolar signals. ...
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I nput Voltage, Unipolar Mode System Calibration Self-Calibration >(S >(V –1.5 LSB) – 1.5 LSB) GAIN REF S – 1.5 LSB V – 1.5 LSB GAIN REF (S – S )/2 – 0.5 LSB (V – V GAIN OFF REF ...
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AD7703 INPUT SIGNAL CONDITIONING Reference voltages from may be used with the AD7703, with little degradation in performance. Input ranges that cannot be accommodated by this range of reference voltages may be achieved by input ...
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VOLTAGE REFERENCE CONNECTIONS The voltage applied to the V pin defines the analog input REF range. The specified reference voltage is 2.5 V, but the AD7703 will operate with reference voltages from with little degradation ...
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AD7703 Synchronous Self-Clocking Mode (SSC) The SSC mode (MODE pin high) allows easy interfacing to serial-parallel conversion circuits in systems with parallel data communication. This mode allows interfacing to 74XX299 Universal Shift registers without any additional decoding. The SSC mode ...
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Synchronous External Clock Mode (SEC) The SEC mode (MODE pin grounded) is designed for direct interface to the synchronous serial ports of industry-standard microprocessors such as the 68HC11 and 68HC05. The SEC mode also allows customized interfaces, using I/O port ...
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AD7703 20-Lead Plastic Dual In-Line Package [PDIP] (N-20) Dimensions shown in inches and (millimeters) 0.985 (25.02) 0.965 (24.51) 0.295 (7.49) 0.945 (24.00) 0.285 (7.24) 0.275 (6.99 0.180 (4.57) 0.015 (0.38) MIN MAX 0.150 (3.81) 0.130 (3.30) ...