Analog Devices' Amplifier Meets Demanding Performance Criteria for Best-in-Class, High-Speed Data Converters

General Press Releases Wednesday July 6, 2011 10:00
NORWOOD, Mass.--6 Jul--PRNewswire-Asia-AsiaNet/ InfoQuest

Analog Devices, Inc. (NYSE: ADI), a world leader in high-performance semiconductors for signal processing applications and RF ICs, today introduced a differential RF/IF (radio frequency/intermediate frequency) amplifier for driving high-speed 12-bit to 18-bit A/D converters. The ADL5565 differential amplifier ( ) features 3-dB bandwidth of 5 GHz and achieves unprecedented distortion, noise and IP3/IP2 performance out to 300 MHz. The ADL5565 amplifier is optimized for wide bandwidth, low distortion and low noise, and achieves industry-best HD3 and OIP3 distortion levels (-103 dB and 51 dBm at 100 MHz; -95 dB and 47 dBm at 200 MHz). The excellent distortion performance makes the ADL5565 ideal for applications in which high linearity and low noise are critical, including IF sampling receivers in wireless infrastructure applications, industrial instrumentation and defense electronics.

The ADL5565 amplifier drives best-in-class high-speed converters, including ADI's new 16-bit, 250-MSPS AD9467 ( http://www.analog.comad9467/ ) data converter, with little or no impact on overall A/D converter SFDR (spurious-free dynamic range) or IMD (inter-modulation distortion) performance. The device gain is pin-programmable using internal gain resistors, which allows for fixed gains of 6 dB, 12 dB, or 15.5 dB. With only two external input resistors, any gain between 0 dB and 15.5 dB can be easily realized, making the new amplifier easier to configure and more cost effective than traditional operational amplifiers.

Download data sheet or order samples, see product page:
Browse ADI's entire RF portfolio:

In addition to the HD2 and HD3 performance, the ADL5565 also has an industry-leading output (RTO) noise level of 5.5-nV/rt-Hz. The nominal operating power supply is 3.3 V, but the ADL5565 amplifier will also support 5 V for incremental distortion improvement. For time-domain applications, the ADL5565 can achieve 12-V/ns slew rates and 2-ns settling times to 1 percent for a 3-V step.

The ability of the ADL5565 amplifier to support detailed specifications at common IF frequencies (70 MHz, 100 MHz, 140 MHz, and 250 MHz) simplifies the design process and affords manufacturers a highly flexible design that can reduce time-to-market, bill-of-materials cost and board space. These new benchmarks in high-frequency distortion and noise levels allow system designers to continue increasing bandwidth and dynamic range for high-performance receiver designs.

ADL5565 Differential RF/IF Amplifier Key Features:
Pin-strappable and resistor feed-forward gain settings for design flexibility
High intercept power linearity: OIP3/OIP2 51 dBm/90 dBm at 100 MHz
2nd/3rd order distortion levels (2 Vpp into 200 ohms): -103 dBc/ -103 dBc
Power consumption: 70 mA
Power supply range: 3 V to 5 V
RTO noise: 5.5 nV/rt-Hz (6 dB gain)
Availability, Pricing and Complementary Components:
Product: ADL5565
Sample Availability: Now
Full Volume Production: July 2011
Price Each In 1,000 Quantities: $4.05
Packaging: 3-mm x 3-mm 16-lead LFCSP
The ADL5565 differential amplifier is well-suited for use with a variety of Analog Devices products, including the AD9467 A/D converter, the newly announced ADL5812 RF mixer and the ADF4350 PLL/VCO.
RF IC Portfolio Covers Entire RF Signal Chain

Using a unique combination of design skills, system understanding and process technologies, Analog Devices offers the broadest portfolio of RF products covering the entire RF signal chain from industry-leading high-performance discrete RF function blocks to highly-integrated multi-functional single-chip RF solutions. These products are also supported by a wide range of free design tools, evaluation boards and other design resources to ease the development of RF systems. For more information, visit:

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