ADR280
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ADR280

1.2 V Ultralow Power High PSRR Voltage Reference

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.06
Features
  • 1.2 V precision output
  • Excellent line regulation: 2 ppm/V typical
  • High power supply ripple rejection: –80 dB at 220 Hz
  • Ultralow power supply current: 16 μA maximum
  • Temperature coefficient: 40 ppm/°C maximum
  • Low noise, 12.5 nV/√Hz typical
  • Operating supply range, 2.4 V to 5.5 V
  • Compact 3-lead SOT-23 and SC70 packages
Additional Details
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The ADR280 is a 1.2 V band gap core reference with excellent line regulation and power supply rejection designed specifically for applications experiencing heavy dynamic supply variations, such as data converter references in GSM, GPRS, and 3G mobile station applications. Devices such as the AD6535 that have an analog baseband IC with on-board baseband, audio codecs, voltage regulators, and battery chargers rely on the ability of the ADR280 to reject input battery voltage variations during RF power amplifier activity.

In addition to mobile stations, the ADR280 is suitable for a variety of general-purpose applications. Most band gap references include internal gain for specific outputs, which simplifies the user’s design, but compromises on the cost, form factor, and flexibility. The ADR280, on the other hand, optimizes the band gap core voltage and allows users to tailor the voltage, current, or transient response by simply adding their preferred op amps.

The ADR280 operates on a wide supply voltage range from 2.4 V to 5.5 V. It is available in compact 3-lead SOT-23 and SC70 packages. The device is specified over the extended industrial temperature range of −40°C to +85°C.

APPLICATIONS

  • List GSM, GPRS, 3G mobile stations
  • Portable battery-operated electronics
  • Low voltage converter references
  • Wireless devices
Part Models 2
1ku List Price Starting From $1.06

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADR280AKSZ-REEL7
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ADR280ARTZ-REEL7
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0253

Addition of UTAC Thailand as an Alternate Assembly Site for SOT23, SC70 and TSOT Packages/Devices

Feb 4, 2010

- 10_0009

Halogen Free Material Change for SOT_23 Products

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0253

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Addition of UTAC Thailand as an Alternate Assembly Site for SOT23, SC70 and TSOT Packages/Devices

Feb 4, 2010

- 10_0009

arrow down

Halogen Free Material Change for SOT_23 Products

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

AD-FMCADC7-EBZ

ADL5567 & AD9625 Analog Signal Chain Evaluation and ADF4355-2 Wideband Synthesizer with VCO

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AD-FMCADC7-EBZ

ADL5567 & AD9625 Analog Signal Chain Evaluation and ADF4355-2 Wideband Synthesizer with VCO

ADL5567 & AD9625 Analog Signal Chain Evaluation and ADF4355-2 Wideband Synthesizer with VCO

Features and Benefits

  • Single channel of 2.5 GSPS conversion utilizing JESD204B high speed serial interface
  • Driver amplifier interface with 20dB voltage gain adjustment
  • On-board PLL and VCO setup for clocking or external clocking
  • True DC coupled input and analog input frontend to the ADC, BW = DC to 1.8GHz
  • Product Detail

    The AD-FMCADC7-EBZ is a single channel high speed data acquisition board featuring the AD9625 12bit, ADC sampling at 2500 MSPS and a ADL5567 low distortion, 4.8 GHz, differential amplifier driving the converter. The FMC form factor supports the JESD204B high speed serial interface. All clocking is supported using the on-board ADF4355-2 wideband PLL with VCO. This product is designed for sampling wide bandwidth analog signals from DC to 1.8GHz. The combination of wide input bandwidth, high sampling rate, and excellent linearity of the AD9625 is ideally suited for spectrum analyzers, data acquisition systems, and a wide assortment of military electronics applications.


    The board meets most of the FMC specifications in terms of mechanical size, mounting hole locations, and more. Although this board does meet most of the FMC specifications, it’s not meant as a commercial off the shelf (COTS) board. If you want a commercial, ready to integrate product, please refer to one of the many FMC manufacturers and the FMC specification (ANSI/VITA 57.1).


    This board is targeted to use the ADI reference designs that work with Xilinx development systems. ADI provides complete source (HDL and software) to re-create those projects (minus the IP provided by the FPGA vendors, which we use), but may not provide enough info to port this to your custom platform.


    The design of the board is specifically tailored to allow for true DC coupling on the analog input of the amplifier throughout the signal chain to the converter. Yielding the widest spectrum possible for the AD-FMCADC7-EBZ.


    The reference design includes the device data capture via the JESD204B serial interface and the SPI interface. The samples are written to the external DDR-DRAM. It allows programming the device and monitoring it’s internal registers via SPI.

    Reference Designs

    Reference Designs 1

    ADuC7061 Controlling 4 mA-to-20 mA Loop-Based Temperature Monitor Circuit

    4 mA-to-20 mA Loop-Powered Temperature Monitor Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

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    CN0145

    4 mA-to-20 mA Loop-Powered Temperature Monitor Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

    CN0145

    Circuits from the lab

    tooltip Info:Circuits from the lab
    4 mA-to-20 mA Loop-Powered Temperature Monitor Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

    Features and Benefits

    • Temperature monitoring solution
    • Interfaces with 4-20 mA controller
    • 24 bit precision conversion with integrated processor
    View Detailed Reference Design external link

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