MAX2681
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MAX2681

400MHz to 2.5GHz, Low-Noise, SiGe Downconverter Mixers

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 2
1ku List Price Starting From $2.48
Features
  • 400MHz to 2.5GHz Operation
  • +2.7V to +5.5V Single-Supply Operation
  • Low Noise Figure: 6.3dB at 900MHz (MAX2680)
  • High Input Third-Order Intercept Point (IIP3 at 2450MHz)
    • -6.9dBm at 5.0mA (MAX2680)
    • +1.0dBm at 8.7mA (MAX2681)
    • +3.2dBm at 15.0mA (MAX2682)
  • < 0.1µA Low-Power Shutdown Mode
  • Ultra-Small Surface-Mount Packaging
Additional Details
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The MAX2680/MAX2681/MAX2682 miniature, low-cost, low-noise downconverter mixers are designed for low-voltage operation and are ideal for use in portable communications equipment. Signals at the RF input port are mixed with signals at the local oscillator (LO) port using a double-balanced mixer. These downconverter mixers operate with RF input frequencies between 400MHz and 2500MHz, and downconvert to IF output frequencies between 10MHz and 500MHz.

The MAX2680/MAX2681/MAX2682 operate from a single +2.7V to +5.5V supply, allowing them to be powered directly from a 3-cell NiCd or a 1-cell Lithium battery. These devices offer a wide range of supply currents and input intercept (IIP3) levels to optimize system performance. Additionally, each device features a low-power shutdown mode in which it typically draws less than 0.1µA of supply current. Consult the Selector Guide for various combinations of IIP3 and supply current.

The MAX2680/MAX2681/MAX2682 are manufactured on a high-frequency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package.

Applications

  • 400MHz/900MHz/2.4GHz ISM-Band Radios
  • Cell Phones/Cordless Phones
  • IEEE 802.11 and Wireless Data
  • Personal Communications Systems (PCS)
  • Wireless Local Loop (WLL)
Part Models 2
1ku List Price Starting From $2.48

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Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX2681EUT+
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MAX2681EUT+T
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Product Lifecycle

PCN

Feb 4, 2015

- 1341_CANCELLATION

ASSEMBLY

MAX2681EUT+

PRODUCTION

MAX2681EUT+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 4, 2015

- 1341_CANCELLATION

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ASSEMBLY

MAX2681EUT+

PRODUCTION

MAX2681EUT+T

PRODUCTION

Software & Part Ecosystem

Evaluation Kits 1

MAX2680EVKIT

Evaluation Kit for the MAX2680/MAX2681/MAX2682

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MAX2680EVKIT

Evaluation Kit for the MAX2680/MAX2681/MAX2682

Evaluation Kit for the MAX2680/MAX2681/MAX2682

Features and Benefits

  • Easy Evaluation of MAX2680/MAX2681/MAX2682
  • Easy Evaluation of All Device Functions
  • +2.7V to +5.5V Single-Supply Operation
  • RF Input Matched to 50Ω at 900MHz
  • IF Output Matched to 50Ω at 70MHz
  • SMA Input and Output Signal Connectors
  • All Critical Peripheral Components Included

Product Detail

The MAX2680/MAX2681/MAX2682 evaluation kits (EV kits) simplify the evaluation of the MAX2680/MAX2681/MAX2682 downconverter mixers. They enable testing of all device functions and require no additional support circuitry. Signal inputs and outputs use SMA connectors to ease the connection of RF test equipment.

All three EV kits share the same PC board but have RF input matching components optimized for each device at an RF frequency of 900MHz. Be sure to select the EV kit for the device that meets your performance needs. Consult the Selector Guide in the MAX2680/MAX2681/MAX2682 data sheet for the various combinations of power gain, input IP3, noise figure, and supply current offered by each device. The IF output matching components are optimized for an IF frequency of 70MHz. All matching components may be changed to match RF frequencies from 400MHz to 2.5GHz and IF frequencies from 10MHz to 500MHz. Consult Tables 2 and 4 in the MAX2680/MAX2681/MAX2682 data sheet for component values appropriate for each device at other RF and IF operating frequencies.

Applications

  • 400MHz/900MHz/2.4GHz ISM-Band Radios
  • Cell Phones/Cordless Phones
  • IEEE 802.11 and Wireless Data
  • Personal Communications Systems (PCS)
  • Wireless Local Loop (WLL)

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