Product category:
Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: AD8370
Edited by the Electronicstalk Editorial
Team on 26 February 2003
Wide bandwidth for digitally controlled
amp
The AD8370 is a high-linearity, fully differential, digitally controlled variable gain amplifier for wireless and wired communication networks.
Extending Analog Devices' broad portfolio of RF/IF products, the AD8370 is a high-linearity, fully differential, digitally controlled variable gain amplifier (VGA) for use in wireless and wired communication networks The AD8370 provides a 700MHz bandwidth (-3dB), enabling the part to be used at intermediate frequencies (IF) up to 380MHz
This article was originally published on Electronicstalk on 14 Sep 2001 at 8.00am (UK)
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The AD8370 enables designers to select between two gain control ranges (a high-gain mode adjustable from +6 to +34dB and a low-gain mode adjustable from -11 to +17dB) through a 3bit serial interface.
This allows designers the flexibility to fine trim the gain with less than 1dB resolution for maximum receiver sensitivity.
The low intermodulation distortion, high output compression, low noise and differential drive make the AD8370 an ideal pre-amplifier for high-speed, high-performance analogue-to-digital convertors, such as ADI's low-IF 12bit AD9226, AD9235, AD9433 or AD6640.
The AD8370 is specified for use at a number of common IFs: 70, 140, 190, 240 and 380MHz, enabling the part for use within the receive path AGC (automatic gain control) loops within cellular infrastructure equipment, including GSM, CDMA and W-CDMA.
The AD8370 amplifier comes in a compact 16-pin TSSOP and operates over the temperature range of -40 to +85C.
Samples and preproduction quantities are available for immediate shipment.
The AD8370 is priced at $4.20 per unit in 1000-piece quantities.
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