Product category:
Analogue and Mixed Signal ICs
News Release from: Maxim Integrated Products | Subject: MAX5873 etc
Edited by the Electronicstalk Editorial
Team on 19 August 2005
DACs are optimised for baseband
transmission
A family of 10 low-power high-dynamic-performance pin-compatible 12, 14 and 16bit dual DACs come with with update rates up to 500Msample/s.
Maxim Integrated Products has expanded its high-speed data-convertor portfolio by introducing 10 low-power, high-dynamic-performance, pin-compatible, 12/14/16bit, dual digital-to-analogue convertors (DACs) with update rates up to 500Msample/s The MAX5873-MAX5878, MAX5893-MAX5895 and MAX5898 deliver both exceptional dynamic performance up to Nyquist, tight gain and offset matching
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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These high-performance DACs are optimised for baseband transmit architectures with analogue quadrature mixing, phased arrays, and diversity transmit applications.
The MAX5873 (12bit), MAX5874 (14bit) and MAX5875 (16bit) DACs feature CMOS inputs and a 200Msample/s update rate.
With an update rate of 250Msample/s, the MAX5876 (12bit), MAX5877 (14bit) and MAX5878 (16bit) devices have LVDS inputs.
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The MAX5893 (12bit), MAX5894 (14bit), MAX5895 and MAX5898 (16bit) parts have both CMOS and LVDS input options, a 500Msample/s update rate, selectable 2x/4x/8x interpolating filters, and a selectable digital quadrature modulator.
All these DACs are ideal for applications such as single-/multicarrier basestations, broadband communications, cable-modem termination systems (CMTS), direct digital synthesis (DDS) and instrumentation.
The DAC performance capabilities are impressive.
At a 200Msample/s update rate, the 12bit MAX5873 delivers 78dBc SFDR at 16MHz output frequency while consuming only 255mW.
The MAX5873 features a CMOS input databus, which can be configured as a dual data port or as a single interleaved data port.
The 16bit MAX5878 has a 250Msample/s update rate.
It delivers industry-leading noise spectral density of -164dBFS/Hz at 16MHz output frequency while consuming only 298mW.
A single LVDS interleaved data port operates up to 500MHz to support the dual DAC.
With a 500Msample/s update rate, the 16bit MAX5895 delivers 92dBc SFDR and-100dBc two-tone IMD at 10MHz output frequency.
It consumes only 1.1W.
Selectable interpolating filters enable low-input datarates at high DAC update rates and ease reconstruction filter requirements.
The MAX5895 can be used in conjunction with the MAX2022 zero-IF quadrature modulator to enable a four-carrier WCDMA base-station transmitter.
These pin-compatible devices are specified for the extended-industrial temperature range (-40 to +85C) and available in a space-saving 68-pin QFN-EP package.
Evaluation kits and transmitter reference designs are available to speed designs.
All devices are in production.
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