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ADS7844N/1KG4 - Texas Instruments

Description: 12 Bit Analog to Digital Converter 4, 8 Input 1 SAR 20-SSOP

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ADS7844N/1KG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB0020A
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ADS7844N/1KG4 - Texas Instruments  - 3D model - Small Outline Packages - DB0020A
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ADS7844N/1KG4 Details

  • Manufacturer Part Number:

    ADS7844N/1KG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • 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:

    7.2 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,.3

  • 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:

    2 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

ADS7844N/1KG4 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 ADS7844N's analog input signal range is 0 to VREF. To ensure accurate conversions, the input signal should be within this range. If the input signal exceeds VREF, it may result in incorrect conversions or damage to the device.
  • The REFOUT pin provides a buffered output of the internal reference voltage (VREF). This pin can be used as a reference voltage for other devices in the system, or as a voltage source for external circuitry.
  • The ADS7844N can be configured for differential or pseudo-differential operation by connecting the IN+ and IN- pins accordingly. For differential operation, connect the positive input signal to IN+ and the negative input signal to IN-. For pseudo-differential operation, connect the input signal to IN+ and the reference voltage (VREF) to IN-.
  • The maximum sampling rate of the ADS7844N is 200 kHz. However, the actual sampling rate may be limited by the system's clock frequency, the conversion time, and the settling time of the analog input signal.

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ADS7844N/1KG4 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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