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The MAX11043 features 4 single-ended or differenTIalchannels of simultaneous-sampling ADCs with 16-bitresoluTIon. The MAX11043 contains a versaTIle filterblock and programmable-gain amplifier (PGA) perchannel. The filter consists of seven cascaded 2ndorderfilter secTIons for each channel, allowing the constructionof a 14th-order filter. The filter coefficients areuser-programmable. Configure each 2nd-order filter aslowpass (LP), highpass (HP), or bandpass (BP) withoptional rectification. Gain and phase mismatch of theanalog signal path is better than -50dB.The ADC can sample up to 800ksps per channel. A40MHz serial interface provides communication to andfrom the device. The SPI™ interface provides throughputof 1600ksps; 4 channels at 400ksps per channel or2 channels at 800ksps per channel. A software-selectablescan mode allows reading the ADC results whilesimultaneously updating the DAC. Other features of theMAX11043 include an internal (+2.5V) or external(+2.0V to +2.8V) reference, power-saving modes, anda PGA with gains of 1 to 64. The PGA includes anequalizer (EQ) function that automatically boosts lowamplitude,high-frequency signals for applications suchas CW-chirp radar.The MAX11043 includes two 8-bit coarse DACs that setthe high and low references for a second-stage 12-bitfine DAC, typically used for VCO control. Use softwarecontrols to write to the DAC or step the DAC up anddown under hardware control in programmable steps.The device operates from a +3.0V to +3.6V supply. TheMAX11043 is available in a 40-pin, 6mm x 6mm TQFNpackage and operates over the extended -40°C to+125°C temperature range.ApplicationsAutomotive Radar SystemsData Acquisition SystemsIndustrial ControlsPower-Grid Monitoring
