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ADS7843E/2K5 - Texas Instruments

Description: 12-bit Analog-to-Digital Converter (ADC) with a synchronous serial interface and touch screen contr

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ADS7843E/2K5 Details

  • Manufacturer Part Number:

    ADS7843E/2K5

  • 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

  • ECCN Code:

    EAR99

  • 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

ADS7843E/2K5 Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VREF, and then the analog input signal. This ensures proper operation and prevents damage to the device.
  • To optimize the layout, keep the analog and digital grounds separate, use a solid ground plane, and minimize the distance between the ADS7843E/2K5 and the analog input signal source. Also, use a low-ESR capacitor for the VREF pin.
  • The maximum sampling rate of the ADS7843E/2K5 is 125 kHz, but it can be adjusted by changing the clock frequency and the conversion mode.
  • The ADS7843E/2K5 has built-in offset and gain error correction capabilities. Use the internal offset and gain calibration registers to adjust the output values and compensate for errors.
  • Yes, the ADS7843E/2K5 can be used with a single-ended analog input signal, but it's recommended to use a differential input signal for better noise rejection and common-mode rejection ratio (CMRR).

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ADS7843E/2K5 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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