Low Distortion Differential RF/IF Amplifier
Data Sheet
FEATURES
−3 dB bandwidth of 2.2 GHz for AV = 12 dB Single resistor programmable gain: 0 dB ≤ AV ≤ 26 dB Diffe...
Description
Data Sheet
FEATURES
−3 dB bandwidth of 2.2 GHz for AV = 12 dB Single resistor programmable gain: 0 dB ≤ AV ≤ 26 dB Differential interface Low noise input stage 2.7 nV/√Hz at AV = 10 dB Low harmonic distortion −79 dBc second at 70 MHz −81 dBc third at 70 MHz OIP3 of 31 dBm at 70 MHz Single-supply operation: 3 V to 5.5 V Low power dissipation: 28 mA at 5 V Adjustable output common-mode voltage Fast settling and overdrive recovery Slew rate of 13,000 V/μs Power-down capability
APPLICATIONS
Differential ADC drivers Single-ended-to-differential conversion IF sampling receivers RF/IF gain blocks SAW filter interfacing
GENERAL DESCRIPTION
The AD8351 is a low cost differential amplifier useful in RF and IF applications up to 2.2 GHz. The voltage gain can be set from unity to 26 dB using a single external gain resistor. The AD8351 provides a nominal 150 Ω differential output impedance. The excellent distortion performance and low noise characteristics of this device allow for a wide range of applications.
The AD8351 is designed to satisfy the demanding performance requirements of communications transceiver applications. The device can be used as a general-purpose gain block, an ADC driver, and a high speed data interface driver, among other functions. The AD8351 can also be used as a single-ended-todifferential amplifier with similar distortion products as in the
Low Distortion Differential RF/IF Amplifier
AD8351
FUNCTIONAL BLOCK DIAGRAM
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AD8351
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