MAX11040

19-4302; Rev 0; 5/09 www.DataSheet4U.com 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 ♦ 106dB SNR at 16ksps ♦ 117dB 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-Compatible 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 MAX11040 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 command. Four modulators simultaneously convert each fully differential analog input with a programmable data output rate ranging from 0.25ksps to 64ksps. The device achieves 106dB SNR at 16ksps and 117dB S...