AD7893AR-5 Analog Devices Inc, AD7893AR-5 Datasheet
AD7893AR-5
Specifications of AD7893AR-5
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AD7893AR-5 Summary of contents
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FEATURES Fast 12-Bit ADC with 6 s Conversion Time 8-Pin Mini-DlP and SOIC Single Supply Operation High Speed, Easy-to-Use, Serial Interface On-Chip Track/Hold Amplifier Selection of Input Ranges 10 V for AD7893-10 2.5 V for AD7893 ...
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AD7893–SPECIFICATIONS A Parameter Versions DYNAMIC PERFORMANCE 2 Signal to (Noise + Distortion) Ratio @ + Total Harmonic Distortion (THD) –80 2 Peak Harmonic or Spurious Noise –80 2 Intermodulation Distortion (IMD) 2nd Order Terms –80 3rd Order ...
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TIMING CHARACTERISTICS A, B Parameter Versions 100 NOTES 1 Sample tested at + ensure compliance. All input signals are measured with ...
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... On the rising edge of this input, the track/hold goes into its hold mode and conversion is initiated Positive supply voltage Model AD7893AN-2 AD7893BN-2 AD7893AR-2 AD7893BR-2 AD7893SQ-2 AD7893AN-5 AD7893BN-5 AD7893AR-5 AD7893BR-5 AD7893SQ-5 AD7893AN-10 – +85 C AD7893BN-10 – +85 C AD7893AR-10 – +85 C AD7893BR-10 – +85 C AD7893SQ-10 – +125 C AD7893AR Plastic DIP Cerdip SOIC. PIN FUNCTION DESCRIPTION 5%. PIN CONFIGURATION ...
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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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AD7893 CONVERTER DETAILS The AD7893 is a fast, 12-bit single supply A/D converter. It provides the user with signal scaling (AD7893-10), track/hold, A/D converter and serial interface logic functions on a single chip. The A/D converter section of the AD7893 ...
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Track/Hold Section The track/hold amplifier on the analog input of the AD7893 allows the ADC to accurately convert an input sine wave of full- scale amplitude to 12-bit accuracy. The input bandwidth of the track/hold is greater than the Nyquist ...
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AD7893 CONVST SCLK CONVERSION IS INITIATED AND TRACK/HOLD GOES INTO HOLD This scheme limits the throughput rate minimum; how- ever, depending on the response time of the microprocessor to the interrupt signal and the time taken by ...
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The AD7893 counts the serial clock edges to know which bit from the output register should be placed on the SDATA out- put. To ensure that the part does not lose synchronization, the serial clock counter is reset on the ...
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AD7893 AD7893–ADSP-2105 Interface An interface circuit between the AD7893 and the ADSP-2105 DSP processor is shown in Figure 8. In the interface shown, the RFS1 output from the ADSP-2105’s SPORT1 serial port is used to gate the serial clock (SCLK1) ...
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The same data is presented in Figure Figure 10 except that, in this case, the output data read for the device occurs dur- ing conversion. This has the effect of injecting noise onto the die while bit ...
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AD7893 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). Plastic DIP (N- 0.280 (7.11) PIN 1 0.240 (6.10 0.325 (8.25) 0.430 (10.92) 0.300 (7.62) 0.348 (8.84) 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.015 (0.381) ...