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ADS7844EB/2K5 - Texas Instruments

Description: 12-Bit, 8-Channel Serial Output Sampling Analog-To-Digital Converter

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ADS7844EB/2K5 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DBQ (R-PDSO-G20)
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ADS7844EB/2K5 Details

  • Manufacturer Part Number:

    ADS7844EB/2K5

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QSOP

  • Package Description:

    SSOP-20

  • Pin Count:

    20

  • 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:

    0.75 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    8.65 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    2

  • Number of Analog In Channels:

    8

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • 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:

    SSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • 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:

    1.9 V

  • Supply Voltage-Nom:

    2.7 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

ADS7844EB/2K5 Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the analog input voltage. This ensures proper operation and prevents latch-up.
  • To optimize performance, ensure proper PCB layout, use a low-noise power supply, and minimize digital noise coupling. Also, adjust the ADC's clock frequency, gain, and sampling rate according to your application's requirements.
  • The maximum sampling rate of the ADS7844 is 200 kHz. However, the actual achievable sampling rate depends on the system clock frequency, conversion mode, and other factors.
  • The ADS7844 outputs 14-bit data in a serial format. You can use a microcontroller or FPGA to receive and process the data. Ensure proper synchronization and data formatting according to your system's requirements.
  • The internal reference voltage (VREF) is used to set the full-scale range of the ADC. It can be bypassed using an external reference voltage if required. The internal VREF is 2.5 V, but it can be adjusted using external resistors.

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ADS7844EB/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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Part Image ADS7844EB Burr-Brown Corp

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Part Image ADS7844EB/2K5 Burr-Brown Corp

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Part Image ADS7844EB/2K5G4 Texas Instruments

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