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ADS7817UB - Texas Instruments

Description: 12-Bit Differential Input Micro Power Sampling Analog-to-Digital Converter

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ADS7817UB - Texas Instruments - PCB symbol
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PCB Footprints
ADS7817UB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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3D Models
ADS7817UB - Texas Instruments - 3D model - Small Outline Packages - D0008A
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ADS7817UB Details

  • Manufacturer Part Number:

    ADS7817UB

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog Input Voltage-Max:

    2.5 V

  • Analog Input Voltage-Min:

    -2.5 V

  • Conversion Time-Max:

    3.75 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Linearity Error-Max (EL):

    0.0488%

  • 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:

    2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.2 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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.91 mm

ADS7817UB Frequently Asked Questions (FAQs)

  • Texas Instruments 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 ADS7817UB outputs data in a 16-bit, two's complement format. The most significant byte (MSB) is output first, followed by the least significant byte (LSB). The user should ensure that their microcontroller is configured to receive data in this format and byte order.
  • The maximum sampling rate of the ADS7817UB is 250 kSPS. However, the power consumption increases with the sampling rate. At 250 kSPS, the typical power consumption is around 15 mW, while at 10 kSPS, it is around 5 mW.
  • The ADS7817UB has an internal calibration circuit that can be used to calibrate the ADC. The user can perform a self-calibration by writing a specific code to the CAL register. Additionally, the user can perform an external calibration by applying a known input voltage and adjusting the offset and gain registers accordingly.
  • The ADS7817UB is specified to operate over a temperature range of -40°C to 85°C. The accuracy and performance of the ADC may degrade at extreme temperatures. The user should ensure that the ADC is operated within the specified temperature range and that the system is designed to compensate for any temperature-related errors.

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ADS7817UB 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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ADS7817UB Alternates

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For a full list of alternate parts for ADS7817UB, check out Findchips.com