MAX2645:3.4GHz至3.8GHz、SiGe低噪声放大器/PA前置驱动器

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.

关键特性
  • 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)
MAX2645:典型工作电路
MAX2645:典型工作电路
应用
  • 数字微波无线装置
  • 无线宽带接入
  • 无线本地环路(WLL)
数据手册DataSheet
语言下载文件备注
英文MAX2645.pdfRev 1; 10/2003
关键参数
Part NumberRF Freq.
(MHz)
RF Freq.
(MHz)
Noise Figure
(dB)
Gain
(dB)
Input IP3
(dBm)
ISUPPLY
(mA)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
minmaxSee Notes
MAX2645340038002.314.413
  • 2.7
  • 9.2
3.0 x 4.9µMAX-EP/10$0.86 @1k
开发工具
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX2645EUB停止供货MAX2645EUB+µMAX-EP,;10引脚;26mm²-40°C至+85°CRoHS/无铅:否
MAX2645EUB+生产中µMAX-EP,;10引脚;26mm²-40°C至+85°CRoHS/无铅:无铅
MAX2645EUB+T生产中µMAX-EP,;10引脚;26mm²-40°C至+85°CRoHS/无铅:无铅
MAX2645EUB-T停止供货MAX2645EUB+TµMAX-EP,;10引脚;26mm²-40°C至+85°CRoHS/无铅:否
MAX2645.pdf MAX2645
CMOS Source Resistance and Its Effects on Source-Follower Gain MAX2645
MAX2645.pdf MAX2645