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ADS7844EG4 - Texas Instruments

Description: TEXAS INSTRUMENTS - ADS7844EG4 . - Analogue to Digital Converter, Octal, 12 bit, 200 kSPS, Differential, Single Ended, Serial, Single

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ADS7844EG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DBQ (R-PDSO-G20)
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ADS7844EG4 - Texas Instruments  - 3D model - Small Outline Packages - DBQ (R-PDSO-G20)
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ADS7844EG4 Details

  • Manufacturer Part Number:

    ADS7844EG4

  • 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

  • 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):

    0.0488%

  • 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

ADS7844EG4 Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VREF, and then the analog input signal. This ensures proper operation and prevents damage to the device.
  • The analog input impedance should be matched to the source impedance to minimize signal attenuation. A buffer amplifier or an impedance-matching network can be used to optimize the input impedance.
  • The maximum sampling rate for the ADS7844EG4 is 200 kHz. However, the actual sampling rate may be limited by the system's analog bandwidth, filter characteristics, and other factors.
  • The digital output data from the ADS7844EG4 is in 12-bit binary format. The data can be processed using a microcontroller or a digital signal processor, and can be formatted for further processing or transmission.
  • The internal reference voltage (VREF) is used to set the full-scale range of the analog-to-digital converter. It can be bypassed using an external reference voltage if required.

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ADS7844EG4 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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