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Volume 8, Issue 2 | YOUR SEMICONDUCTOR SOLUTIONS RESOURCE |
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C o n t e n t s Voltage Feedback Amplifier Offers Low Distortion and Noise on 5 mA Supply Current >> RF Gain Blocks Offer Highest Linearity Over Frequency, Up to 6 GHz >> RF Drivers Offer Superior Performance While Consuming Less Power >> Integrated Single-Supply, Rail-to-Rail Instrumentation Amplifier Packs Performance >> Dual Difference Amplifier Offers Highest System Performance and Channel Density at an Attractive Price >> Low Noise Amplifier Selection Tables >> Low Noise Amplifier Selection Tables, continued >> 20 µA MAX, R-R I/O Zero Input Crossover Distortion Amplifier >> Dual, Digitally Controlled VGA for CMTS Upstream Receivers >> Auto-Zero Amplifiers for Thermopile Sensors in Smart Appliances >> Design Tools for Amplifier Selection, Evaluation, and Circuit Building >> All prices in this bulletin are in USD in quantities greater than 1000 (unless otherwise noted), recommended lowest grade resale, FOB U.S.A.
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RF Gain Blocks Offer Highest Linearity Over Frequency, Up to 6 GHz
The ADL5541 and ADL5542 are broadband gain blocks ideal for a wide variety of cellular, CATV, medical, and instrumentation equipment. Both devices are 50 Ω internally matched with integrated active bias circuitry, which minimizes the need for external components. The ADL5541 provides 15 dB of gain with an output linearity of 44 dBm at 500 MHz. The pin-compatible ADL5542 provides 20 dB of gain with an output linearity of 46 dBm at 500 MHz. Compared to other gain blocks currently available, the ADL5541 and ADL5542 offer the highest linearity over frequency, the lowest noise figures, and function across a broader operating frequency range. Both devices are Class 1C (±1 kV) ESD-rated and are available in small footprint LFCSP packages. Fully populated evaluation boards are available from Analog Devices.
RF Drivers Offer Superior Performance While Consuming Less Power ADI's ADL5320 (400 MHz to 2700 MHz) and ADL5321 (2300 MHz to 4000 MHz) RF driver amplifiers offer very high linearity for a given output power, enabling low distortion and high output drive directly to the power amplifier stages. The ADL5320 provides an output linearity of 42 dBm and a 26 dBm output compression point while consuming just 104 mA of supply current. The ADL5321 provides an output linearity of 40 dBm and a 25 dBm output compression point while consuming only 84 mA of supply current. Unlike competing devices, Analog Devices' driver amplifiers require minimal external tuning and feature internal active biasing, to further minimize the need for external components. Both devices are Class 1C (±4 kV) ESD-rated and are available in a SOT-89 package. Fully populated evaluation boards are available.
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