GENERAL DESCRIPTION
The filter coefficients are user-programmable. Configure each 2nd-order filter as lowpass (LP), highpass (HP), or bandpass (BP) with optional rectification. Gain and phase mismatch of the analog signal path is better than -50dB. The ADC can sample up to 800ksps per channel. A 40MHz serial interface provides communication to and from the device. The SPI™ interface provides throughput of 1600ksps; 4 channels at 400ksps per channel or 2 channels at 800ksps per channel. A software-selectable scan mode allows reading the ADC results while simultaneously updating the DAC. Other features of the MAX11043 include an internal (+2.5V) or external (+2.0V to +2.8V) reference, power-saving modes, and a PGA with gains of 1 to 64. The PGA includes an equalizer (EQ) function that automatically boosts lowamplitude, high-frequency signals for applications such as CW-chirp radar. The MAX11043 includes two 8-bit coarse DACs that set the high and low references for a second-stage 12-bit fine DAC, typically used for VCO control.
Maxim Integrated
