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AD7194BCPZ - Analog Devices

Description: 8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

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AD7194BCPZ - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - CP-32-12_2
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AD7194BCPZ - Analog Devices  - 3D model - Quad Flat No-Lead - CP-32-12_2
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AD7194BCPZ Details

  • Manufacturer Part Number:

    AD7194BCPZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Package Description:

    LFCSP-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    CP-32-12

  • Country Of Origin:

    South Korea

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    5 V

  • Analog Input Voltage-Min:

    -5 V

  • Converter Type:

    ADC, DELTA-SIGMA

  • JESD-30 Code:

    S-XQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Analog In Channels:

    8

  • Number of Bits:

    24

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Bit Code:

    BINARY, OFFSET BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.048 MHz

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max:

    5.3 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

AD7194BCPZ Frequently Asked Questions (FAQs)

  • The AD7194BCPZ is a high-precision ADC, and its performance can be affected by the PCB layout and component placement. It is recommended to follow a star-grounding scheme, keep analog and digital grounds separate, and place the ADC close to the analog signal sources. Additionally, decoupling capacitors should be placed close to the ADC's power pins, and the analog input traces should be shielded and kept away from digital signals.
  • The AD7194BCPZ has an internal calibration mechanism, but it may require additional external calibration to achieve the highest accuracy. This can be done by applying a known input voltage and adjusting the ADC's offset and gain registers to match the expected output code. The calibration process may need to be repeated at different temperatures and input ranges to ensure optimal performance.
  • The AD7194BCPZ has a maximum sampling rate of 4.8 kHz, but the actual sampling rate may be limited by the system's noise performance. Higher sampling rates can increase the noise floor, so it's essential to balance the sampling rate with the desired noise performance. Additionally, the ADC's internal clock can be synchronized with an external clock to reduce jitter and improve overall performance.
  • The AD7194BCPZ has a power-on reset (POR) circuit that initializes the ADC's internal registers and calibration data. After power-on, the ADC goes through a startup sequence that includes a calibration cycle. It's essential to ensure that the power supply is stable and the ADC is properly reset before starting the conversion process. The startup sequence can be monitored through the ADC's status registers.
  • The AD7194BCPZ's analog input should be driven by a low-impedance source, such as an op-amp, to minimize noise and distortion. The input signal should be filtered to remove high-frequency noise and ensure that the signal is within the ADC's input range. Additionally, the input signal should be buffered to prevent loading the signal source and to ensure a stable input voltage.

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AD7194BCPZ 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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