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AD7843ARUZ - Analog Devices

Description: AD7843ARUZ, Touch Screen Digitizer, 12bit- 125ksps, 16-Pin TSSOP

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AD7843ARUZ Details

  • Manufacturer Part Number:

    AD7843ARUZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    RU-16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    3.6 V

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Linearity Error-Max (EL):

    0.0488%

  • Moisture Sensitivity Level:

    1

  • Number of Analog In Channels:

    4

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Sample Rate:

    0.125 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max:

    0.38 mA

  • Supply Voltage-Nom:

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4.44 mm

AD7843ARUZ Frequently Asked Questions (FAQs)

  • A good layout and routing practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the analog and digital signal traces separate and away from each other. Additionally, use a low-ESR capacitor for the VCC pin and a 0.1uF capacitor for the AVCC pin.
  • The AD7843ARUZ has an internal calibration circuit that can be enabled by setting the CAL bit in the control register. The device also has an internal voltage reference that can be calibrated using the VREF pin. It is recommended to follow the calibration procedure outlined in the datasheet to ensure accurate conversions.
  • The maximum sampling rate of the AD7843ARUZ is 200 kHz. However, the actual sampling rate may be limited by the system's clock frequency, the conversion time, and the settling time of the analog input signal.
  • If the AD7843ARUZ is not converting the analog input signal correctly, check the following: ensure the analog input signal is within the specified range, check the clock frequency and ensure it is within the specified range, verify the conversion mode is set correctly, and check for any noise or interference on the analog input signal.
  • Yes, the AD7843ARUZ can be used in a multi-channel application. The device has a built-in multiplexer that allows it to convert multiple analog input channels. The channel selection is done using the CH[2:0] pins.

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AD7843ARUZ Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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