MAX2066 Datasheet | Maxim Integrated

Description The MAX2066 high-linearity digital 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 digital attenuator is controlled as a slave peripheral using either the SPI™patible interface or a parallel bus with 31d B total adjustment range in 1d B steps. An added feature allows “rapid-fire” gain selection between each of four steps, preprogrammed by the user through the SPIpatible interface. The 2-pin control allows the user to quickly access any one of four customized attenuation states without reprogramming the SPI bus. 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), 5.2d B NF at maximum gain (includes attenuator insertion loss), and a high OIP3 level of +42.4d Bm. Each of these features makes the MAX2066 an ideal VGA for numerous receiver and transmitter applications. In addition, the MAX2066 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 trade current consumption for linearity performance. This device is available in a pact 40pin thin QFN package (6mm x 6mm) with an exposed pad. Electrical performance is guaranteed over the extended temperature range (TC = -40°C to +85°C). - Pin-patible Family Includes MAX2065 (Analog/Digital VGA) MAX2067 (Analog VGA) - 20.5d B (typ) Maximum Gain - 0.4d B Gain Flatness Over 100MHz Bandwidth - 31d B Gain Range - Supports Four “Rapid-Fire” Preprogrammed Attenuator States Quickly Access Any One of Four Customized Attenuation States Without Reprogramming the SPI Bus Ideal for Fast-Attack, High-Level Blocker Protection Prevents ADC Overdrive Condition - Excellent Linearity (Configured...