AD7869JR Analog Devices Inc, AD7869JR Datasheet
AD7869JR
Specifications of AD7869JR
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AD7869JR Summary of contents
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FEATURES Complete 14-Bit l/O System, Comprising 14-Bit ADC with Track/Hold Amplifier 83 kHz Throughput Rate 14-Bit DAC with Output Amplifier 3.5 s Settling Time On-Chip Voltage Reference Operates from 5 V Supplies Low Power—130 mW typ Small 0.3" Wide ...
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AD7869–SPECIFICATIONS ( 5 ADC SECTION All specifications T Parameter 2 DYNAMIC PERFORMANCE 3, 4 Signal-to-Noise Ratio (SNR MIN MAX Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise Intermodulation ...
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V 5 DAC SECTION V Load to AGND OUT Parameter 2 DYNAMIC PERFORMANCE 3 Signal-to-Noise Ratio (SNR MIN MAX Total Harmonic Distortion (THD) Peak ...
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... Although the AD7869 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. Model AD7869JN AD7869JR AD7869AQ *N = Plastic DIP Cerdip Small Outline IC (SOIC 5 – ...
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DIP Pin Number Mnemonic Function POWER SUPPLY 7 & Positive Power Supply & Negative Power Supply, – & 19 AGND Analog Ground. Both AGND pins must be tied together. ...
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AD7869 CONVERTER DETAILS The AD7869 is a complete 14-bit I/O port; the only external components required for normal operation are pull-up resistors for the ADC data outputs, and power supply decoupling capaci- tors. The AD7869 is comprised of a 14-bit ...
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REF OUT 100 50 OUTPUT WITH ALL 0s LOADED REF OUT DECOUPLED AS SHOWN IN 20 FIGURE 100 200 1k 2k FREQUENCY – Hz Figure 3. Noise Spectral Density vs. Frequency INPUT/OUTPUT TRANSFER FUNCTIONS A ...
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AD7869 TIMING AND CONTROL Communication with the AD7869 is managed by six dedicated pins. These consist of separate serial clocks, word framing or strobe pulses, and data signals for both receiving and transmit- ting data. Conversion starts and DAC updating ...
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AD7869 DYNAMIC SPECIFICATIONS The AD7869 is specified and 100% tested for dynamic perfor- mance specifications as well as traditional dc specifications such as Integral and Differential Nonlinearity. These ac specifications are required for signal processing applications such as speech recognition, ...
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AD7869 The digitizer sampling is synchronized with the DAC update rate to ease FFT calculations. The digitizer samples the DAC output after the output has settled to its new value. Therefore, if the digitizer were to directly sample the output, ...
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MICROPROCESSOR INTERFACING Microprocessor interfacing to the AD7869 is via a serial bus that uses standard protocol compatible with DSP machines. The communication interface consists of separate transmit (DAC) and receive (ADC) sections whose operations can be either syn- chronous or ...
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AD7869 AD7869–TMS32020 Interface Figure 18 shows an interface that is suitable for the TMS32020/ TMS320C25 processors. This interface is configured for syn- chronous, continuous clock operation. Note the AD7869 will not correctly interface to these processors if the AD7869 is ...
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ANALOG INPUT LK1 3V RANGE A B SKT1 C COMPONENT GRID COMPONENT GRID LK2 C SKT2 B A ANALOG OUTPUT 3V RANGE V + C10 0.1 F AD711 + IC3 V– C12 C11 0 ...
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AD7869 COMPONENT LIST IC1 AD7869 IC2, IC3 2X AD711 IC4, ADG201HS IC5, MC78L05 IC6, MC79L05 IC7, 74HC4050 IC8, 74HC221 C1, C3, C5, C7 C9, C11, C13, C15 10 F Capacitor C17, C19, C23 C2, C4, C6, C8 C10, C12, C14, ...
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Figure 22. Component Side Layout for the Circuit Diagram of Figure 19 Figure 23. Solder Side Layout for the Circuit Diagram of Figure 19 REV. A –15– AD7869 ...
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AD7869 24-Pin Plastic DIP (N-24) 1.275 (32.30) 1.125 (28.60 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.200 (5.05) SEATING 0.022 (0.558) 0.100 0.070 (1.77) PLANE 0.125 (3.18) (2.54) 0.014 (0.356) ...