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ADS7843EG4 - Texas Instruments

Description: TEXAS INSTRUMENTS - ADS7843EG4 . - Resistive Touch Screen Controller IC, 4 Wire, SPI Interface, 12 bit Resolution, 2.7V to 5V, MSOP-16

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ADS7843EG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DBQ0016A
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ADS7843EG4 Details

  • Manufacturer Part Number:

    ADS7843EG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    1

  • Analog Input Voltage-Max:

    5 V

  • Conversion Time-Max:

    6 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    4.89 mm

  • Linearity Error-Max (EL):

    0.0488%

  • Moisture Sensitivity Level:

    2

  • 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:

    SSOP

  • Package Equivalence Code:

    SSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.125 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    0.65 mA

  • Supply Voltage-Nom:

    2.7 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

ADS7843EG4 Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VREF, and then the analog input voltage. This ensures proper operation and prevents damage to the device.
  • The ADS7843EG4's analog input voltage range is 0 to VREF. To ensure accurate conversions, the input voltage should be within this range. If the input voltage exceeds VREF, the device will saturate and provide an incorrect reading.
  • The internal reference voltage (VREF) is used to set the full-scale range of the ADC. It can be bypassed with an external reference voltage if required. The internal VREF is typically 2.5V, but it can be adjusted using external resistors.
  • The ADS7843EG4 communicates with a microcontroller through a standard SPI interface. The microcontroller should provide a clock signal (SCLK), chip select signal (CS), and data input/output signals (DIN/DOUT) to interact with the ADS7843EG4.
  • The conversion time of the ADS7843EG4 depends on the clock frequency and the number of bits per conversion. At a clock frequency of 2 MHz, the conversion time is approximately 1.5 μs for a 12-bit conversion.

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ADS7843EG4 Overview

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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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Part Image ADS7843E/2K5G4 Texas Instruments

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Part Image ADS7843E/2K5 Burr-Brown Corp

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Part Image ADS7843E Burr-Brown Corp

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