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ADS7846NG4 - Texas Instruments

Description: TEXAS INSTRUMENTS - ADS7846NG4 . - Resistive Touch Screen Controller IC, 3 Wire, SPI Interface, 12 bit Resolution, 2.2V-5.25V, TSSOP-16

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ADS7846NG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0016A
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ADS7846NG4 - Texas Instruments  - 3D model - Small Outline Packages - PW0016A
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ADS7846NG4 Details

  • Manufacturer Part Number:

    ADS7846NG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    TSSOP

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia

  • HTS Code:

    8542.31.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    1

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • 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

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    2.2 V

  • Supply Voltage-Nom:

    2.7 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

  • uPs/uCs/Peripheral ICs Type:

    CAPACITIVE TOUCH SCREEN CONTROLLERS

ADS7846NG4 Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VREF, and then the clock signal. This ensures proper initialization of the device.
  • The BUSY signal goes high during conversion and remains high until the conversion is complete. The host should wait for BUSY to go low before accessing the data.
  • The maximum frequency of the clock signal is 3.25 MHz. Exceeding this frequency may result in incorrect conversions or device malfunction.
  • Calibration involves adjusting the internal offset and gain of the device. TI provides a calibration procedure in the datasheet, which involves applying a known input voltage and adjusting the offset and gain registers accordingly.
  • The ADS7846NG4's performance is affected by temperature, with changes in offset, gain, and noise floor. TI provides temperature coefficients in the datasheet to help engineers compensate for these effects.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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