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ADS7870EA/1K - Texas Instruments

Description: 12-Bit ADC, MUX, PGA and Internal Reference Data Acquisition System

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ADS7870EA/1K - Texas Instruments - PCB symbol
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ADS7870EA/1K - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB0028A
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ADS7870EA/1K - Texas Instruments - 3D model - Small Outline Packages - DB0028A
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ADS7870EA/1K Details

  • Manufacturer Part Number:

    ADS7870EA/1K

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.30

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Input Voltage-Max:

    5.5 V

  • Analog Input Voltage-Min:

    -0.2 V

  • Conversion Time-Max:

    4.8 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    10.2 mm

  • Linearity Error-Max (EL):

    0.061%

  • Moisture Sensitivity Level:

    2

  • Number of Analog In Channels:

    8

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY, 2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.052 MHz

  • Seated Height-Max:

    2 mm

  • Supply Current-Max:

    1.7 mA

  • Supply Voltage-Min:

    2.7 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

ADS7870EA/1K Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The analog input traces should be routed close to the AGND plane, and the digital output traces should be routed close to the DGND plane. Additionally, the device's power pins should be decoupled with 0.1uF and 10uF capacitors.
  • The ADS7870EA/1K has an internal calibration circuit that can be enabled by setting the CAL pin high. The device should be calibrated after power-up and after any changes to the reference voltage or analog input range. The calibration process takes approximately 100ms, during which the device is not available for conversions.
  • The recommended reference voltage for the ADS7870EA/1K is 2.5V, but it can operate with a reference voltage between 2.2V and 2.7V. The reference voltage affects the device's full-scale input range, with a higher reference voltage resulting in a wider input range. However, a higher reference voltage also increases the device's power consumption.
  • The ADS7870EA/1K outputs 16-bit digital data in a binary two's complement format. The output data is available on the D[15:0] pins, with D[15] being the most significant bit. The device also has a DATA_RDY pin that goes high when the output data is valid.
  • The maximum sampling rate of the ADS7870EA/1K is 1MSPS. The sampling rate affects the device's power consumption, with higher sampling rates resulting in higher power consumption. The device's power consumption can be reduced by reducing the sampling rate or by using the device's power-down mode.

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ADS7870EA/1K 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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