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MAX9920ASA/V+T - Analog Devices

Description: Current Sense Amplifiers -20V to +75V Input Range, Precision Uni-/Bidirectional, Current-Sense Amplifiers S8E+14

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MAX9920ASA/V+T - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8E+14
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MAX9920ASA/V+T Details

  • Manufacturer Part Number:

    MAX9920ASA/V+T

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    8-SOIC_N-150_MIL

  • Package Description:

    ROHS COMPLIANT, MS-012, SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    8-SOIC_N-150_MIL

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    2009-11-20

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    250 µA

  • Common-mode Reject Ratio-Nom:

    72 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    3500 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.89 mm

  • Low-Bias:

    YES

  • Low-Offset:

    YES

  • Micropower:

    YES

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    YES

  • Programmable Power:

    NO

  • Seated Height-Max:

    1.68 mm

  • Slew Rate-Nom:

    1.5 V/us

  • Supply Current-Max:

    2.2 mA

  • Supply Voltage Limit-Max:

    6 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Wideband:

    NO

  • Width:

    3.9 mm

MAX9920ASA/V+T Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX9920ASA/V+T involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the sensing resistor. Additionally, the layout should minimize noise coupling and ensure that the input traces are short and direct.
  • The sensing resistor (Rs) value depends on the current range to be measured and the desired output voltage range. A higher Rs value increases the output voltage range but also increases the noise sensitivity. A good starting point is to choose an Rs value that sets the output voltage range to around 1V to 4V, and then adjust as needed for the specific application.
  • The MAX9920ASA/V+T has a specified temperature range of -40°C to +125°C. Over this range, the device's accuracy is affected by temperature-dependent errors, such as offset voltage drift and gain error. To minimize these effects, it's recommended to use a temperature-compensated sensing resistor and to calibrate the system over the expected operating temperature range.
  • To filter out noise and ripple, a low-pass filter can be added to the output of the MAX9920ASA/V+T. A simple RC filter with a cutoff frequency of around 1kHz to 10kHz can be effective. Alternatively, a more advanced filter, such as a 2nd-order Butterworth filter, can be used for more demanding applications.
  • The MAX9920ASA/V+T is designed to measure unidirectional currents. However, with some additional circuitry, it's possible to modify the device to measure bidirectional currents. This typically involves using a differential amplifier to convert the bidirectional current signal to a unidirectional signal that can be measured by the MAX9920ASA/V+T.

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MAX9920ASA/V+T 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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