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ADS7812U - Texas Instruments

Description: Low-Power, Serial 12-Bit Sampling Analog-To-Digital Converter

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ADS7812U - Texas Instruments - PCB symbol
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ADS7812U - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0016A
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ADS7812U - Texas Instruments - 3D model - Small Outline Packages - DW0016A
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ADS7812U Details

  • Manufacturer Part Number:

    ADS7812U

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-16

  • Pin Count:

    16

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog Input Voltage-Max:

    10 V

  • Analog Input Voltage-Min:

    -10 V

  • Conversion Time-Max:

    20 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.3 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    3

  • Number of Analog In Channels:

    1

  • 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:

    2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.04 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Min:

    4.75 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

ADS7812U Frequently Asked Questions (FAQs)

  • The ADS7812U requires careful PCB layout and routing to ensure optimal performance. TI recommends a 4-layer PCB with a solid ground plane, and to keep analog and digital signals separate. Additionally, the analog input traces should be kept short and away from digital signals.
  • The ADS7812U outputs data in a 12-bit, two's complement format. The most significant bit (MSB) is the sign bit, and the remaining 11 bits represent the magnitude. The output data can be easily converted to a signed integer or floating-point format for further processing.
  • Clock jitter can affect the ADS7812U's performance by introducing noise and reducing the effective resolution. TI recommends using a high-quality clock source with low jitter (<100 ps) to ensure optimal performance.
  • The ADS7812U does not require calibration, as it has an internal calibration circuit that ensures accurate performance. However, it's recommended to perform a system-level calibration to account for any external component tolerances or PCB layout variations.
  • The recommended power-up sequence for the ADS7812U is to apply the analog power supply (AVCC) first, followed by the digital power supply (DVCC) and finally the clock signal. This ensures that the internal analog and digital circuits are properly initialized.

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ADS7812U Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like ADS78, or try a keyword search, such as Analog to Digital Converters

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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