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AD7921ARMZ - Analog Devices

Description: ADC,AD7921A 12bit 250kSPS 2 ch SPI MSOP

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AD7921ARMZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - (RM-8)
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AD7921ARMZ Details

  • Manufacturer Part Number:

    AD7921ARMZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    ROHS COMPLIANT, MO-187AA, MSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    RM-8

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    5.25 V

  • Conversion Time-Max:

    3.2 µs

  • Converter Type:

    ADC, SUCCESSIVE APPROXIMATION

  • JESD-30 Code:

    S-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Linearity Error-Max (EL):

    0.0366%

  • Moisture Sensitivity Level:

    1

  • Number of Analog In Channels:

    2

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.25 MHz

  • Sample and Hold / Track and Hold:

    TRACK

  • Seated Height-Max:

    1.1 mm

  • Supply Current-Max:

    3 mA

  • Supply Voltage-Nom:

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

AD7921ARMZ Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VDD before applying VREF. This ensures that the internal reference is stable before the ADC starts converting.
  • To optimize the layout, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog and digital signal traces separate. Also, place the VREF capacitor close to the VREF pin.
  • The maximum sampling rate of the AD7921 is 250 kSPS (kilosamples per second). However, this rate can be affected by the clock frequency, conversion mode, and other factors.
  • Yes, the AD7921 allows the use of an external reference voltage. The external reference voltage should be connected to the VREF pin, and the internal reference should be disabled by tying the REFEN pin to GND.
  • The BUSY signal indicates when the ADC is busy converting. The BUSY signal should be monitored to ensure that the ADC is not accessed during a conversion. The BUSY signal can be used to generate an interrupt or to gate the clock signal.

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AD7921ARMZ Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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