MAX1403EAI+

The MAX1403EAI+ is a +3V, 18bit, low power, multichannel, oversampling (sigma-delta) ADC in 28 pin SSOP package. This ADC uses a sigma-delta modulator with a digital decimation filter to achieve 16bit accuracy at an output data rate of 480sps. The digital filter’s user-selectable decimation factor allows the conversion resolution to be reduced in exchange for a higher output data rate. The modulator sampling frequency may be optimized for either lowest power dissipation or highest throughput rate. The MAX1403 operates from +3V. It offers three fully differential input channels that may be independently programmed with a gain between +1V/V and +128V/V. It can compensate an input-referred DC offset up to 117% of the selected full-scale range. This three differential channels may also be configured to operate as five pseudo differential input channels. Two additional, fully differential system-calibration channels are provided for gain and offset error correction.

• Supply voltage range is 2.7V to 3.6V
• Operating temperature range from -40°C to 85°C
• Low quiescent current of 250μA in operating mode and 2μA in power-down mode
• SPI/QSPI compatible 3wire serial interface
• Automatic channel scanning and continuous data output mode

Applications

Signal Processing, Portable Devices

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party