General Description

The MAX11040K/MAX11060 are 24-/16-bit, 4-channel, simultaneous-sampling, sigma-delta analog-to-digital converters (ADCs). The devices allow 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 devices allows read ing data from all the cascaded devices using a single command.

Features

♦ Four Fully Differential Simultaneously Sampled Channels

♦ Cascadable for Up to 32 Channels of Simultaneous Sampling

♦ 106dB (MAX11040K) SNR at 16ksps

♦ 117dB (MAX11040K) SNR at 1ksps

♦ 0.25 Error Over a 1000:1 Dynamic Range, Processed Over 16.7ms (MAX11040K)

♦ ±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