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ADL5812:  Dual High IP3, 700 MHz TO 2800 MHz, Double Balanced, Passive Mixer, IF Amp, and Wideband LO Amp

Product Details

Product Status:Recommended for New Designs

The ADL5812 dual wideband passive mixer and its single channel version, the ADL5811, uses revolutionary new broadband, square wave limiting, local oscillator (LO) amplifiers to achieve an unprecedented radio frequency (RF) bandwidth of 700 MHz to 2800 MHz. Unlike conventional narrow-band sine wave LO amplifier solutions, this permits the LO to be applied either above or below the RF input over an extremely wide bandwidth. Because energy storage elements are not used, the dc current consumption also decreases with decreasing LO frequency.

The ADL5812 uses highly linear, doubly balanced, passive mixer cores along with integrated RF and LO balancing circuits to allow single-ended operation. The ADL5812 incorporates programmable RF baluns, allowing optimal performance over a 700 MHz to 2800 MHz RF input frequency. The balanced passive mixer arrangement provides outstanding LO-to-RF and LO-to-IF leakages, excellent RF-to-IF isolation, and excellent intermodulation performance over the full RF bandwidth.

The balanced mixer cores also provide extremely high input linearity, allowing the device to be used in demanding wideband applications where in-band blocking signals may otherwise result in the degradation of dynamic range. Blocker noise figure performance is comparable to narrow-band passive mixer designs. High linearity IF buffer amplifiers follow the passive mixer cores, yielding typical power conversion gains of 6.7 dB, and can be used with a wide range of output impedances. For low voltage applications, the ADL5812 is capable of operation at voltages down to 3.6 V with substantially reduced current. Two logic bits are provided to individually power down (1.5 mA for both channels) the two channels as desired.

All features of the ADL5812 are controlled via a 3-wire serial port interface, resulting in optimum performance and minimum external components.

The ADL5812 is fabricated using a BiCMOS high performance IC process. The device is available in a 40-lead, 6mm × 6mm, LFCSP package and operates over a −40°C to +85°C temperature range. An evaluation board is also available.

Applications

  • Multiband/multistandard cellular base station diversity receivers
  • Wideband radio link diversity downconverters
  • Multimode cellular extenders and broadband receivers

FEATURES and BENEFITS

  • RF frequency: 700 MHz to 2800 MHz continuous
  • LO frequency: 250 MHz to 2800 MHz, high-side or low-side inject
  • IF range: 30 MHz to 450 MHz
  • Power conversion gain of 6.7 dB at 1900 MHz
  • SSB noise figure of 11.6 dB at 1900 MHz
  • Input IP3 of 27.2 dBm at 1900 MHz
  • Input P1dB of 12.5 dBm at 1900 MHz
  • Typical LO drive of 0 dBm
  • Single-ended, 50 Ω RF port
  • Single-ended or balanced LO input port
  • Single-supply operation: 3.6 V to 5.0 V
  • Serial port interface control on all functions
  • Exposed paddle 6 mm × 6 mm, 40-lead LFCSP package

Functional Block Diagram for ADL5812

Documentation

Title Content Type File Type
ADL5812: Dual High IP3, 700 MHz to 2800 MHz, Double Balanced,Passive Mixer, IF Amplifier, and Wideband LO Amplifier Data Sheet (Rev 0, 08/2011) (pdf, 442 kB) Data Sheets PDF
ADL5811 and ADL5812 Wideband Passive Mixers
ADI's single-channel and dual-channel RF mixers are first in industry to incorporate wideband LO amplifier, programmable RF balun and IF filter, and IF amplifier to support wideband operation for wireless infrastructure and software-defined radio applications.
Videos HTML
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADIsimRF
ADI’s ADIsimRF design tool provides calculations for the most important parameters within the RF signal chain, including cascaded gain, noise figure, IP3, P1dB, and total power consumption.
ADIsim Design/Simulation Tools HTML
ADIsimPLL™- Version 3.43
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADIsim Design/Simulation Tools HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products


Recommended PLL's for the ADL5812

  • For high performance with integrated VCO, we recommend the ADF4350.
  • For lower cost, power and size with integrated VCO, we recommend the ADF4360-X family of fixed frequency PLL's.
  • For higher performance, higher frequency and faster locktimes, we recommend the discrete Integer-N, ADF4106 or the discrete Fractional-N ADF4156.
Recommended RF/IF Differential Amplifiers for the ADL5812
  • For adjustable gain with external resistor, we recommend the AD8351.
  • For ultralow distortion and adjustable gain with external resistor, we recommend the AD8352.
  • For ultralow distortion, pin strappable gain adjust, we suggest the ADL5561.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADL5812 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
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ADL5812-EVALZ Status: Production Evaluation Board - Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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