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ADS7955SDBTR - Texas Instruments

Description: Analog to Digital Converters - ADC 10B 1MSPS 4Ch Sgl Ended Micro Pwr

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ADS7955SDBTR Details

  • Manufacturer Part Number:

    ADS7955SDBTR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    30

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Input Voltage-Max:

    5.25 V

  • Conversion Time-Max:

    0.8 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G30

  • JESD-609 Code:

    e4

  • Length:

    7.8 mm

  • Linearity Error-Max (EL):

    0.0488%

  • Moisture Sensitivity Level:

    2

  • Number of Analog In Channels:

    8

  • Number of Bits:

    10

  • Number of Functions:

    1

  • Number of Terminals:

    30

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP30,.25,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    1 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max:

    3 mA

  • Supply Voltage-Min:

    1.7 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

ADS7955SDBTR Frequently Asked Questions (FAQs)

  • Texas Instruments provides a layout and routing guide in the ADS7955SDBTR evaluation module user's guide, which includes recommendations for component placement, trace routing, and grounding to minimize noise and ensure accurate conversions.
  • The ADS7955SDBTR has an internal calibration circuit that can be used to calibrate the device. The calibration process involves applying a known input voltage and then using the device's calibration registers to adjust the gain and offset to achieve the highest accuracy. Texas Instruments provides a calibration procedure in the device's datasheet and application notes.
  • The maximum sampling rate of the ADS7955SDBTR is 2 MSPS. The power consumption of the device increases with the sampling rate, and Texas Instruments provides a power consumption vs. sampling rate graph in the datasheet to help designers estimate the power consumption of their design.
  • The ADS7955SDBTR has internal overvoltage protection (OVP) and undervoltage protection (UVP) circuits that prevent damage to the device in case of overvoltage or undervoltage conditions on the analog input pins. The OVP and UVP circuits are enabled by default, but can be disabled through the device's configuration registers if needed.
  • Texas Instruments recommends using a combination of ceramic and electrolytic capacitors to decouple the power supply pins of the ADS7955SDBTR. A 10-uF ceramic capacitor and a 10-uF electrolytic capacitor in parallel are recommended for each power supply pin. Additionally, a pi-filter or a ferrite bead can be used to filter out high-frequency noise on the power supply lines.

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ADS7955SDBTR 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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