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AD7845AQ - Analog Devices

Description: Analog Devices AD7845AQ, 12 bit Parallel DAC, 200ksps, 24-Pin CERDIP

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AD7845AQ - Analog Devices - PCB symbol
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AD7845AQ - Analog Devices PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - 24-Lead Cerdip (Q-24)
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AD7845AQ Details

  • Manufacturer Part Number:

    AD7845AQ

  • Source Url Status Check Date:

    2013-05-01 14:56:20.999

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    DIP

  • Package Description:

    DIP-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    Q-24-1

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    3

  • Analog Output Voltage-Max:

    10 V

  • Analog Output Voltage-Min:

    -10 V

  • Converter Type:

    D/A CONVERTER

  • Input Bit Code:

    BINARY, OFFSET BINARY

  • Input Format:

    PARALLEL, WORD

  • JESD-30 Code:

    R-GDIP-T24

  • JESD-609 Code:

    e0

  • Linearity Error-Max (EL):

    0.0244%

  • Negative Supply Voltage-Nom:

    -15 V

  • Number of Bits:

    12

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP24,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.715 mm

  • Settling Time-Max:

    5 µs

  • Settling Time-Nom (tstl):

    2.5 µs

  • Supply Current-Max:

    10 mA

  • Supply Voltage-Nom:

    15 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

AD7845AQ Frequently Asked Questions (FAQs)

  • The recommended layout and routing for the AD7845AQ involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the analog signal traces. Additionally, it is recommended to use a 4-layer PCB with a dedicated analog power plane and a dedicated digital power plane to reduce noise coupling.
  • To prevent EMI, it is recommended to use a low-pass filter or a series resistor on the digital outputs, and to keep the digital output traces short and away from sensitive analog signals. Additionally, using a shielded cable or a twisted pair cable can help to reduce EMI radiation.
  • The maximum clock frequency that can be used with the AD7845AQ is 65 MHz. However, it is recommended to use a clock frequency of 50 MHz or less to ensure optimal performance and to prevent clock jitter from affecting the converter's accuracy.
  • The AD7845AQ does not require calibration. It is a self-calibrating ADC that uses an internal calibration routine to ensure optimal performance. However, it is recommended to perform a system-level calibration to account for any system-specific errors or nonlinearities.
  • The recommended power-up sequence for the AD7845AQ is to first power up the analog power supply (VCC), followed by the digital power supply (VDD), and then the clock signal. This ensures that the ADC is properly initialized and configured before starting the conversion process.

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AD7845AQ Overview

Use the download button to access the AD7845AQ schematic symbol and PCB footprint.
To find more CAD model downloads similar to this part, try a partial part number search, like AD784, or try a keyword search, such as Digital to Analog Converters

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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