Highly Integrated Simultaneous-Sampling ADC Simplifies Automotive Radar Applications
Note to Editor:
- The MAX11043 is a quad, 16-bit, simultaneous-sampling ADC in a space-saving, 6mm x 6mm package.
- Designed for CW chirp radar systems, this solution minimizes cost and saves valuable board space.
- To enable these benefits, the MAX11043 integrates four discrete analog filters; four high-precision, simultaneous-sampling ADCs; and a 12-bit control DAC.
- The MAX11043 is ideal for automotive radar applications, industrial controls, power-grid monitoring, and other applications that require simultaneous sampling.
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SUNNYVALE, CA—September 25, 2008—Maxim Integrated Products (PINK OTC MARKETS: MXIM) introduces the MAX11043 quad, 16-bit, simultaneous-sampling ADC for sensor applications. Designed for continuous-wave (CW) chirp radar systems, this device provides a complete solution for conditioning and digitizing the IF signals from a 24GHz or 77GHz radar front-end for a DSP or microprocessor. To minimize cost and save board space, the device integrates four discrete analog filters; four high-precision, simultaneous-sampling ADCs; and a 12-bit control DAC into a small, 6mm x 6mm package. The MAX11043's unprecedented integration makes it ideal for automotive radar applications, industrial control applications that use radar signals for level sensing or flow-rate measurements, power-grid monitoring, and other applications that require simultaneous sampling.
To maximize flexibility, the MAX11043 contains a versatile filter block and PGA on each of its four channels. The filter consists of seven cascaded 2nd-order programmable filter sections, allowing the construction of a 14th-order filter. Each 2nd-order filter is configurable as lowpass, highpass, or bandpass with optional rectification. Each PGA is programmable for a gain of 1 to 64 and includes an equalizer function to provide gain-versus-frequency characteristics for CW chirp radar. The signal path of each ADC can be customized and configured individually for optimal flexibility.
Other features include an internal or external reference, power-saving modes, and a two-stage, 12-bit DAC. The integrated DAC provides the VCO control voltage to the RF mixer in the radar front-end. With its adjustable DAC output range, this control voltage can be matched to the VCO's input-voltage range. Additionally, scan mode allows the ADC's results to be read while simultaneously updating the DAC to increase communications efficiency.
The MAX11043 operates from a 3.0V to 3.6V supply. It is available in a space-saving, 6mm x 6mm, 40-pin TQFN package and is fully specified over the -40°C to +125°C automotive temperature range. Prices start at $8.03 (1000-up, FOB USA).
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells over $2 billion of high-performance semiconductor products annually. It was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, Maxim has developed over 5800 products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-ic.com.
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