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ADS7818EB/2K5 - Texas Instruments

Description: Analog to Digital Converters - ADC 12-Bit High Speed Low Power Sampling

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ADS7818EB/2K5 - Texas Instruments - PCB symbol
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ADS7818EB/2K5 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DGK (S-PDSO-G8)
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ADS7818EB/2K5 - Texas Instruments - 3D model - Small Outline Packages - DGK (S-PDSO-G8)
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ADS7818EB/2K5 Details

  • Manufacturer Part Number:

    ADS7818EB/2K5

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    MSOP

  • Package Description:

    SSOP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Input Voltage-Max:

    5.25 V

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    2

  • Number of Analog In Channels:

    1

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • 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:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.5 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    1.75 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/Silver (Ni/Pd/Au/Ag)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

ADS7818EB/2K5 Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the ADC close to the analog signal source. Decoupling capacitors should be placed as close as possible to the VCC and GND pins. A dedicated analog ground plane is also recommended to reduce noise coupling.
  • The ADS7818EB/2K5 has an internal calibration circuit that is performed at power-up. However, it's recommended to perform an external calibration using an accurate voltage reference to ensure maximum accuracy. The calibration process involves applying a known voltage to the input and reading the corresponding digital output.
  • The maximum sampling rate of the ADS7818EB/2K5 is 250 kSPS. However, the power consumption increases with the sampling rate. At 250 kSPS, the power consumption is approximately 15 mW, while at 10 kSPS, it's around 5 mW. The power consumption can be reduced by using the power-down mode or reducing the clock frequency.
  • The ADS7818EB/2K5 outputs 16-bit digital data in a serial format. The data is transmitted MSB-first, and the output data format can be configured as either straight binary or twos-complement. The digital output data can be interfaced with a microcontroller or FPGA for further processing and analysis.
  • The recommended input signal range for the ADS7818EB/2K5 is 0 to VREF (2.5 V or 5 V, depending on the configuration). The input impedance should be less than 1 kΩ to ensure accurate conversions. A higher input impedance can lead to signal attenuation and reduced accuracy.

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ADS7818EB/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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