MAX11040 Datasheet | Maxim Integrated

19-4302; Rev 0; 5/09 .. ION KIT AT EVALU BLE AVAILA 24-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADC General Description Features - Four Fully Differential Simultaneously Sampled Channels - Cascadable for Up to 32 Channels of Simultaneous Sampling - 106d B SNR at 16ksps - 117d B SNR at 1ksps - 0.25% Error Over a 1000:1 Dynamic Range, Processed Over 16.7ms - ±2.2V Full-Scale Input Range - ±6V Overvoltage Protected Inputs - Internal Crystal Oscillator - 2.5V, 50ppm/°C Internal Reference or External Reference - Programmable Output Data Rate 0.25ksps to 64ksps Range 0.065% Resolution - Programmable Sampling Phase 0 to 333µs Delay in 1.33µs Steps - SPI-/QSPI-/MICROWIRE-/DSP-patible 4-Wire Serial Interface - Cascadable Interface Allows Control of Up to Eight Devices with a Single CS Signal - 3.0V to 3.6V Analog Supply Voltage - 2.7V to VAVDD Digital Supply Voltage - 38-Pin TSSOP Package The MAX11040 is a 24-bit, 4-channel, simultaneoussampling, sigma-delta analog-to-digital converter (ADC). The device allows simultaneous sampling of as many as 32 channels using a built-in cascade feature to synchronize as many as eight devices. The serial interface of the MAX11040 allows reading data from all the cascaded devices using a single mand. Four modulators simultaneously convert each fully differential analog input with a programmable data output rate ranging from 0.25ksps to 64ksps. The device achieves 106d B SNR at 16ksps and 117d B SNR at 1ksps. The MAX11040 operates from a single +3V supply. The differential analog input range is ±2.2V when using the internal reference, an external reference is optional. Each input is overvoltage protected up to ±6V without damage. The device uses an internal crystal oscillator or an external source for clock. The MAX11040 is patible with SPI™, QSPI™, MICROWIRE™, and DSP-patible 4-wire serial interfaces. An on-board interface logic allows one serial interface (with a single chip...