MAX2681 Datasheet

• 400MHz to 2.5GHz Operation
• +2.7V to +5.5V Single-Supply Operation
• High Input Third-Order Intercept Point (IIP3 at 2450MHz)
  • +1.0dBm at 8.7mA (MAX2681)
• < 0.1µA Low-Power Shutdown Mode
• Ultra-Small Surface-Mount Packaging

• 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)

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