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AD844BQ - Analog Devices

Description: Wide bandwidth 60 MHz at gain of −1 33 MHz at gain of −10 Slew rate: 2000 V/μs 20 MHz full power bandwidth, 20 V p-p, RL = 500 Ω Fast settling: 100 ns to 0.1% (10 V step) Differential gain error: 0.03% at 4.4 MHz Differential phase error: 0.16° at 4.4 MHz Low offset voltage: 150 μV maximum (B Grade) Low quiescent current: 6.5 mA Available in tape and reel in accordance with EIA-481-A standard

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AD844BQ - Analog Devices PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - (Q-8) .
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AD844BQ Details

  • Manufacturer Part Number:

    AD844BQ

  • 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):

    0.2 µA

  • Bias Current-Max (IIB) @25C:

    0.25 µA

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    200 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:

    85 °C

  • Operating Temperature-Min:

    -40 °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:

    8.5 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • 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

AD844BQ Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the AD844BQ is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
  • To ensure stability in a unity-gain configuration, it's recommended to add a 10nF to 22nF capacitor in parallel with a 1kΩ to 2kΩ resistor between the output and the inverting input (pin 6) to prevent oscillations.
  • To minimize noise and EMI, it's recommended to keep the input and output traces short and away from each other, use a solid ground plane, and decouple the power supplies with 0.1μF to 1μF capacitors.
  • While the AD844BQ can be used as a comparator, it's not the most suitable choice due to its relatively slow slew rate (2.5V/μs) and limited output current (±20mA). A dedicated comparator like the AD790 or AD8561 would be a better choice.
  • To protect the AD844BQ from electrostatic discharge (ESD), it's recommended to use ESD protection devices such as TVS diodes or ESD arrays on the input and output pins, and to follow proper handling and storage procedures to prevent ESD damage.

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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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