MAX2067
Description
The MAX2067 high-linearity analog variable-gain amplifier (VGA) is a monolithic Si Ge Bi CMOS attenuator and amplifier designed to interface with 50Ω systems operating in the 50MHz to 1000MHz frequency range (see the Typical Application Circuit). The analog attenuator is controlled using an external voltage or through the SPI™-patible interface using an on-chip 8-bit DAC. Because each stage has its own RF input and RF output, this ponent can be configured to either optimize NF (amplifier configured first), or OIP3 (amplifier last). The device’s performance features include 22d B amplifier gain (amplifier only), 4d B NF at maximum gain (includes attenuator insertion loss), and a high OIP3 level of +43d Bm. Each of these features makes the MAX2067 an ideal VGA for numerous receiver and transmitter applications. In addition, the MAX2067 operates from a single +5V supply with full performance, or a single +3.3V supply with slightly reduced performance, and has an adjustable bias to...
