Mixed Signal/Analog
Maxim - Simultaneous-Sampling 24-Bit ADC Is Cascadable to 32 Channels
Maxim has introduced the MAX11040 4-channel, 24-bit simultaneous-sampling ADC. Developed to enable unprecedented simplicity in system design, up to eight MAX11040 devices can be daisy-chained to provide a sampling capacity of up to 32 channels. The MAX11040 achieves this high capacity and scalability with a unique cascadable SPI(TM)/QSPI(TM)/MICROWIRE(TM) interface, which eliminates the complexity of using individual chip-select inputs to control each ADC. Because all eight MAX11040 devices can be accessed using only a single chip-select input, from the host processor's point of view, the control logic remains the same regardless if there are only 4 or as many as 32 channels.
The Additionally, overvoltage protection on the analog inputs protects the MAX11040 from voltages as large as ±6V when referenced to the device's analog ground, thus simplifying design and reducing cost.
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