Product category: Analogue and Mixed Signal ICs
News Release from: Avago Technologies | Subject: ADA-4x43 series
Edited by the Electronicstalk Editorial Team on 22 May 2003
Amps aim for IF applications
Agilent Technologies has developed three new economical and easy-to-use general-purpose silicon bipolar Darlington RFIC gain block amplifiers, housed in compact SOT-343 surface-mount packages
Agilent Technologies has developed three new economical and easy-to-use general-purpose silicon bipolar Darlington RFIC gain block amplifiers, housed in compact SOT-343 surface-mount packages for use at up to 2.5GHz. Agilent's ADA-4x43 series RFIC amplifiers are primarily targeted as IF (intermediate frequency) and buffer amplifiers for applications such as GSM/CDMA basestation radio cards, direct broadcast satellite down convertors, cable television, microwave links, fibre optic systems and cable modems.
This article was originally published on Electronicstalk on 22 May 2003 at 8.00am (UK)
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They are also useful for many other applications requiring high gain and dynamic range, flat frequency response and single-supply operation.
These RFIC Darlington amplifiers are unconditionally stable with excellent gain flatness, high linearity, and internal 50ohm matching circuitry to minimise the required number of external components.
The devices operate from a single current source and meet most output power and dynamic range requirements for IF and buffer amplifier applications in communications systems.
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At 900MHz, the Agilent ADA-4543 features 15.1dB gain, +1.9dBm linear output power (P1dB), +15.0dB output third-order intercept point (OIP3) and 3.7dB noise figure.
For the ADA-4643, the specifications are 17dB gain, +13.4dBm P1dB, +28.3dB OIP3 and 4dB noise figure, and for the ADA-4743, 16.5dB, +17.1dBm, +32.6dBm and 4.2dB, respectively.
Their Darlington feedback structure provides inherent broad bandwidth performance with 3dB bandwidths ranging from 3.2 to 4.0GHz.
Internal matching assures input and output VSWRs less than 2:1 over the full operating frequency range.
ADA-4x43 devices are fabricated using Agilent's HP25 silicon bipolar technology, which employs a double-diffused single-polysilicon process with self-aligned submicron emitter geometry.
The process is capable of simultaneous high transfer frequency (fT) and high NPN breakdown (25GHz fT at 6V BVCEO).
The process uses industry-standard device oxide isolation technologies and submicron aluminium multilayer interconnects to achieve superior performance, high uniformity and proven reliability.
The Agilent ADA-4x43 series is available now. Request a free brochure from Avago Technologies....
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