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AD844SQ - Analog Devices

Description: Operational Amplifiers - Op Amps 2000V/US, WIDE BW OP AMP

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AD844SQ - Analog Devices PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - Q8
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AD844SQ Details

  • Manufacturer Part Number:

    AD844SQ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Package Description:

    CERAMIC, DIP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    Q-8

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    CURRENT-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.4 µA

  • Bias Current-Max (IIB) @25C:

    0.45 µA

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    500 µV

  • JESD-30 Code:

    R-GDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    10.29 mm

  • Low-Bias:

    NO

  • Low-Offset:

    YES

  • Micropower:

    NO

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Slew Rate-Min:

    1200 V/us

  • Slew Rate-Nom:

    2000 V/us

  • Supply Current-Max:

    9.5 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Unity Gain BW-Nom:

    60000

  • Wideband:

    YES

  • Width:

    7.62 mm

AD844SQ Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the AD844SQ is 1.4W, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 90°C/W.
  • To ensure stability, it's essential to follow proper PCB layout practices, use a low-ESR capacitor for decoupling, and consider adding a small capacitor (e.g., 10nF) in parallel with the feedback resistor to reduce oscillations.
  • The recommended input common-mode voltage range for the AD844SQ is between VEE + 2V and VCC - 2V, where VEE is the negative supply voltage and VCC is the positive supply voltage.
  • While the AD844SQ can be used as a comparator, it's not the most suitable choice due to its relatively slow slew rate (5V/μs) and limited output current (20mA). A dedicated comparator like the AD790 or AD8561 might be a better option.
  • To minimize EMI and RFI, use a shielded enclosure, keep signal lines short, and use twisted pairs or shielded cables for signal transmission. Additionally, consider adding EMI filters or ferrite beads to the power supply lines.

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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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