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LTC1857CG#PBF - Analog Devices

Description: LTC1857CG#PBF, 12 bit ADC Differential, SPI, Microwire, 28-Pin SSOP

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LTC1857CG#PBF - Analog Devices - PCB symbol
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LTC1857CG#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - G (28-Lead SSOP)
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LTC1857CG#PBF Details

  • Manufacturer Part Number:

    LTC1857CG#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1640 (G28)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog Input Voltage-Max:

    10 V

  • Analog Input Voltage-Min:

    -10 V

  • Conversion Time-Max:

    5 µs

  • Converter Type:

    ADC, PROPRIETARY METHOD

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    10.2 mm

  • Linearity Error-Max (EL):

    0.0244%

  • Moisture Sensitivity Level:

    1

  • Number of Analog In Channels:

    8

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    70 °C

  • Output Bit Code:

    OFFSET BINARY, 2S COMPLEMENT BINARY

  • Output Format:

    SERIAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.1 MHz

  • Sample and Hold / Track and Hold:

    SAMPLE

  • Seated Height-Max:

    2 mm

  • Supply Current-Max:

    13 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

LTC1857CG#PBF Frequently Asked Questions (FAQs)

  • The recommended layout and placement for the LTC1857CG#PBF involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the analog-to-digital converter (ADC) to minimize noise. Additionally, it is recommended to use a 4-layer PCB with a dedicated analog ground plane and to keep the digital signals away from the analog signals.
  • To ensure proper calibration, the LTC1857CG#PBF requires a calibration cycle during power-up. The device has an internal calibration cycle that sets the gain and offset of the ADC. The calibration cycle can be initiated by applying a rising edge to the CAL pin. It is recommended to follow the calibration procedure outlined in the datasheet to ensure accurate conversions.
  • The recommended power-up sequence for the LTC1857CG#PBF involves applying the analog power supply (AVCC) before the digital power supply (DVCC). The analog power supply should be stable before applying the digital power supply. Additionally, the CAL pin should be low during power-up to prevent incorrect operation.
  • To handle the digital output data from the LTC1857CG#PBF, it is recommended to use a first-in-first-out (FIFO) buffer or a dedicated interface IC to handle the data transfer. The digital output data should be synchronized with the clock signal (SCK) and the data should be latched on the rising edge of the SCK signal.
  • The LTC1857CG#PBF has a maximum junction temperature of 150°C. To ensure reliable operation over temperature, it is recommended to provide adequate heat sinking, use a thermally conductive PCB material, and ensure good airflow around the device. Additionally, the device should be operated within the recommended operating temperature range of -40°C to 85°C.

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LTC1857CG#PBF 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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