MAX1403 Datasheet PDF | Maxim Integrated

Maxim Integrated MAX1403

The MAX1403 18-bit, low-power, multichannel, serialoutput analog-to-digital converter (ADC) features matched 200µA current sources for sensor excitation. This ADC uses a sigma-delta modulator with a digital decimation filter to achieve 16-bit accuracy. The digital filter’s user-selectable decimation factor allows the conversion resolution to be reduced in exchange for a higher output data rate.

Part No.	MAX1403
Datasheet	MAX1403 Download
Manufacturer	Maxim Integrated
Description	+3V / 18-Bit / Low-Power / Multichannel / Oversampling Sigma-Delta ADC
Buy	Stock & Price

GENERAL DESCRIPTION

FEATURES

o 18-Bit Resolution, Sigma-Delta ADC o 16-Bit Accuracy with No Missing Codes to 480sps o Matched On-Board Current Sources (200µA) for Sensor Excitation o Low Quiescent Current 250µA (operating mode) 2µA (power-down mode) o 3 Fully Differential or 5 Pseudo-Differential Signal Input Channels o 2 Additional, Fully Differential Calibration Channels/Auxiliary Input Channels o Programmable Gain and Offset o Fully Differential Reference Inputs o Converts Continuously or On Command o Automatic Channel Scanning and Continuous Data Output Mode o Operates with Analog and Digital Supplies from +2.7V to +3.6V o SPI™/QSPI™-Compatible 3-Wire Serial Interface o 28-Pin SSOP Package MAX1403 True 16-bit performance is achieved at an output data rate of up to 480sps. In addition, the modulator sampling frequency may be optimized for either lowest power dissipation or highest throughput rate. The MAX1403 operates from +3V. This device offers three fully differential input channels that may be independently programmed with a gain between +1V/V and +128V/V.