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ADS7950SDBT - Texas Instruments

Description: 12 bit, 1 MSPS, 4 ch, single ended, micro power, sr i/f, SAR ADC

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ADS7950SDBT - Texas Instruments - PCB symbol
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PCB Footprints
ADS7950SDBT - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - 7.75*4.3mm
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ADS7950SDBT - Texas Instruments - 3D model - Small Outline Packages - 7.75*4.3mm
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ADS7950SDBT Details

  • Manufacturer Part Number:

    ADS7950SDBT

  • 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):

    0.0366%

  • Moisture Sensitivity Level:

    2

  • Number of Analog In Channels:

    4

  • Number of Bits:

    12

  • 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

ADS7950SDBT Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital traces separate. Additionally, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the DVDD pin. Route the analog input traces away from the digital traces and keep them as short as possible.
  • To optimize the ADS7950SDBT for low-power operation, use the lowest possible clock frequency, disable the internal reference voltage, and use the power-down mode when not converting. Additionally, consider using a lower supply voltage and reducing the analog input range.
  • The ADS7950SDBT has an internal calibration circuit that can be used to calibrate the device. Apply a known input voltage to the analog input pins, and then use the CAL pin to initiate the calibration process. The device will then adjust its internal offset and gain to match the input voltage.
  • The ADS7950SDBT outputs 16-bit data in a binary two's complement format. The data is output on the D[15:0] pins, with D[15] being the MSB and D[0] being the LSB. The data is valid on the rising edge of the SCLK pin.
  • The ADS7950SDBT has a maximum conversion rate of 250,000 samples per second (SPS) at a clock frequency of 10 MHz. However, the actual conversion rate may be limited by the analog input bandwidth and the system's overall noise performance.

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ADS7950SDBT 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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