MAX2645
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MAX2645

3.4GHz to 3.8GHz SiGe Low-Noise Amplifier/PA Predriver

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Part Details
Part Models 2
1ku List Price Starting From $1.23
Features
  • 3.4GHz to 3.8GHz Frequency Range
  • LNA Performance (High/Low-Gain Modes)
    • Gain: +14.4dB/-9.7dB
    • NF: 2.3dB/15.5dB
    • Input IP3: +4dBm/+13dBm
    • Supply Current: 9.2mA/2.7mA
  • Highly Versatile Application
    • Receive Path 1st and 2nd Stage LNA
    • Transmit PA Predriver
    • LO Buffer
  • Adjustable IP3 and Supply Current
  • 0.1µA Supply Current in Shutdown Mode
  • +3.0V to +5.5V Single-Supply Operation
  • 10-Pin µMAX-EP Package (5.0mm x 3.0mm)
Additional Details
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The MAX2645 is a versatile, high-linearity, low-noise amplifier designed for 3.4GHz to 3.8GHz wireless local loop (WLL), wireless broadband access, and digital microwave radio applications. The device features an externally adjustable bias control, set with a single resistor, that allows the user to meet minimum linearity requirements while minimizing current consumption. The amplifier's high-gain, low-noise performance and adjustable input third-order intercept (IP3) allow it to be used as a low-noise amplifier (LNA) in the receive path, a PA predriver in the transmit path, or as an LO buffer.

The MAX2645 features a logic-level gain control that provides a 25dB step reduction in gain, which improves IP3 performance for operation during high input signal level conditions. Supply current is reduced from 9mA in high-gain mode to 3mA in low-gain mode. The device also includes a logic-controlled shutdown mode, which reduces supply current to 0.1µA. The MAX2645 operates from a +3V to +5.5V supply and is offered in the miniature 10-pin µMAX® package (5mm x 3mm) with an exposed paddle. Its performance has been optimized for use with the MAX2683/MAX2684 3.5GHz SiGe mixers to provide a complete high-performance, front-end solution for 3.5GHz applications.

Applications

  • Digital Microwave Radios
  • Wireless Broadband Access
  • Wireless Local Loop (WLL)
Part Models 2
1ku List Price Starting From $1.23

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Documentation

Documentation

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

PCN

Sep 19, 2018

- 1753N

ASSEMBLY

MAX2645EUB+

PRODUCTION

MAX2645EUB+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Sep 19, 2018

- 1753N

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ASSEMBLY

MAX2645EUB+

PRODUCTION

MAX2645EUB+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX2645EVKIT

Evaluation Kit for the MAX2645

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MAX2645EVKIT

Evaluation Kit for the MAX2645

Evaluation Kit for the MAX2645

Features and Benefits

  • Easy Evaluation of the MAX2645
  • All Critical Peripheral Components Included
  • SMA Input and Output Connectors
  • RF Ports Matched to 50Ω at 3.55GHz
  • Fully Assembled and Tested

Product Detail

The MAX2645 evaluation kit (EV kit) simplifies evaluation of the MAX2645 3.4GHz to 3.8GHz low-noise amplifier/PA predriver. The EV kit is fully assembled and tested, allowing simple evaluation of all device functions. All RF signal ports use SMA connectors, providing a convenient interface to RF test equipment.

The MAX2645 is a versatile, high-performance, low-noise amplifier with adjustable IP3. These features allow the MAX2645 to be used in a variety of applications, from a low-noise amplifier to a PA predriver. As assembled, the MAX2645 EV kit is configured for lowest noise figure performance (NF = 2.3dB, IIP3 = +4dBm). A few minor component changes configure the device as a low-noise amplifier with higher linearity and slightly degraded noise figure performance (NF = 2.6dB, IIP3 = +10dBm) or as a PA predriver with high output P1dB performance (output P1dB = +12dBm). Refer to the MAX2645 data sheet for application-specific performance data.

Applications

  • Wireless Local Loop (WLL)

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