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AS1544 Datasheet with Chat AI
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  • # Example questions: ➢ What is the typical maximum power dissipation in normal mode (operational) with fsclk = 20mhz and vdd = 4.75 to 5.25v?
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    ➢ What is the typical input supply range (vdd) for the as1543/44, as specified in the data sheet?

  • Part No.AS1544
    ManufacturerAMSCO
    Size1Mb
    Pages29 pages
    Description8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer
    Datasheet Summary with AI

    1. Power Requirements

    ️· Input Supply Range (VDD): 2.75 - 5.25V
    ️· DRIVE Range (VDRIVE): 2.75 - 5.25V (must be less than or equal to VDD)
    ️· Normal Mode (Static) Input Current (IDD): 0.01 - 0.5 µA
    ️· Normal Mode (Operational) Input Current (fSCLK = 20MHz, VDD = 4.75-5.25V): 3.0 - 3.5 mA
    ️· Normal Mode (Operational) Input Current (fSCLK = 20MHz, VDD = 2.7-3.6V): 2.4 - 2.8 mA
    ️· Auto Shutdown Mode Input Current: 1.4 - 1.6 mA (at VDD = 4.75-5.25V)
    ️· Power Dissipation (Normal Mode, Operational, fSCLK = 20MHz, VDD = 4.75-5.25V): 18.4 mW
    ️· Power Dissipation (Auto Shutdown Mode, Static, VDD = 4.75-5.25V): 2.5 µW

    2. Timing Specifications

    ️· SCLK Frequency (fSCLK): 0.01 - 20 MHz
    ️· SCLK Period (tCP): 50 ns (at 20 MHz)
    ️· Minimum Quiet Time (tQUIET): 50 ns
    ️· CSN Fall to SCLK Fall Setup (tCSS): 10 ns
    ️· CSN Fall to DOUT Enabled (tCSDOE): 20 ns
    ️· CSN Fall to DOUT Valid (tCSDOV): 40 ns
    ️· SCLK Pulse Width Low (tCL): 0.4 * tCP
    ️· SCLK Pulse Width High (tCH): 0.4 * tCP
    ️· SCLK Fall to DOUT Hold (tDOH): 10 ns
    ️· SCLK Fall to DOUT Valid (tDOV): 50 ns
    ️· SCLK Fall to DOUT Disable (tDOD): 15-50 ns
    ️· DIN to SCLK Fall Setup (tDS): 20 ns
    ️· DIN to SCLK Fall Hold (tDH): 5 ns
    ️· Sixteenth SCLK Fall to CSN Rise Hold (tCSH): 20 ns
    ️· Power-up time (tWAKEUP): 1 µs

    3. Characteristics (from Figures)

    ️· Figure 5 (Integral Nonlinearity): Shows a small range of nonlinearity around 0V.
    ️· Figure 6 (Differential Nonlinearity): Shows a small range of nonlinearity around 0V.
    ️· Figure 7 (FFT @ 50kHz, RANGE=1, SE/FDN=1):
    - SNR = 71.0 dB
    - THD = -85.5 dB
    - SFDR = 86.5 dB
    ️· Figure 8 (FFT @ 50kHz, RANGE=1, SE/FDN=0):
    - SNR = 72.1 dB
    - THD = -84.7 dB
    - SFDR = 86.2 dB
    ️· Figure 9 (ENOB vs. VREFIN): ENOB is approximately 11.6 for a range of VREFIN voltages. Values vary slightly depending on VDD.
    ️· Figure 10 (ENOB vs. Input Signal Frequency): ENOB is relatively consistent across the tested frequency range (10-1000 kHz).

    1. Power Requirements

    ️· Input Supply Range (VDD): 2.75 - 5.25V
    ️· DRIVE Range (VDRIVE): 2.75 - 5.25V (must be less than or equal to VDD)
    ️· Normal Mode (Static) Input Current (IDD): 0.01 - 0.5 µA
    ️· Normal Mode (Operational) Input Current (fSCLK = 20MHz, VDD = 4.75-5.25V): 3.0 - 3.5 mA
    ️· Normal Mode (Operational) Input Current (fSCLK = 20MHz, VDD = 2.7-3.6V): 2.4 - 2.8 mA
    ️· Auto Shutdown Mode Input Current: 1.4 - 1.6 mA (at VDD = 4.75-5.25V)
    ️· Power Dissipation (Normal Mode, Operational, fSCLK = 20MHz, VDD = 4.75-5.25V): 18.4 mW
    ️· Power Dissipation (Auto Shutdown Mode, Static, VDD = 4.75-5.25V): 2.5 µW

    2. Timing Specifications

    ️· SCLK Frequency (fSCLK): 0.01 - 20 MHz
    ️· SCLK Period (tCP): 50 ns (at 20 MHz)
    ️· Minimum Quiet Time (tQUIET): 50 ns
    ️· CSN Fall to SCLK Fall Setup (tCSS): 10 ns
    ️· CSN Fall to DOUT Enabled (tCSDOE): 20 ns
    ️· CSN Fall to DOUT Valid (tCSDOV): 40 ns
    ️· SCLK Pulse Width Low (tCL): 0.4 * tCP
    ️· SCLK Pulse Width High (tCH): 0.4 * tCP
    ️· SCLK Fall to DOUT Hold (tDOH): 10 ns
    ️· SCLK Fall to DOUT Valid (tDOV): 50 ns
    ️· SCLK Fall to DOUT Disable (tDOD): 15-50 ns
    ️· DIN to SCLK Fall Setup (tDS): 20 ns
    ️· DIN to SCLK Fall Hold (tDH): 5 ns
    ️· Sixteenth SCLK Fall to CSN Rise Hold (tCSH): 20 ns
    ️· Power-up time (tWAKEUP): 1 µs

    3. Characteristics (from Figures)

    ️· Figure 5 (Integral Nonlinearity): Shows a small range of nonlinearity around 0V.
    ️· Figure 6 (Differential Nonlinearity): Shows a small range of nonlinearity around 0V.
    ️· Figure 7 (FFT @ 50kHz, RANGE=1, SE/FDN=1):
    - SNR = 71.0 dB
    - THD = -85.5 dB
    - SFDR = 86.5 dB
    ️· Figure 8 (FFT @ 50kHz, RANGE=1, SE/FDN=0):
    - SNR = 72.1 dB
    - THD = -84.7 dB
    - SFDR = 86.2 dB
    ️· Figure 9 (ENOB vs. VREFIN): ENOB is approximately 11.6 for a range of VREFIN voltages. Values vary slightly depending on VDD.
    ️· Figure 10 (ENOB vs. Input Signal Frequency): ENOB is relatively consistent across the tested frequency range (10-1000 kHz).

    Part No.AS1544
    ManufacturerAMSCO
    Size1Mb
    Pages29 pages
    Description8/4-Channel, 1 Msps, 12-Bit ADC with Sequencer
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