General Description

The MAX1392/MAX1395 micropower, serial-output, 10-bit, analog-to-digital converters (ADCs) operate with a single power supply from +1.5V to +3.6V. These ADCs feature automatic shutdown, fast wake-up, and a high-speed 3-wire interface. Power consumption is only 0.740mW (VDD = +1.5V) at the maximum conversion rate of 357ksps. AutoShutdown™ between conversions reduces power consumption at slower throughput rates.

Features

♦ 357ksps 10-Bit Successive-Approximation Register (SAR) ADCs

♦ Single True-Differential Analog Input Channel with Unipolar-/Bipolar-Selected Input (MAX1392)

♦ Dual Single-Ended Input Channel with ChannelSelected Input (MAX1395)

♦ ±0.5 LSB INL, ±0.5 LSB DNL, No Missing Codes

♦ ±1 LSB Total Unadjusted Error

♦ 61dB SINAD at 85kHz Input Frequency

♦ Single Supply Voltage (+1.5V to +3.6V)

♦ 0.945mW at 350ksps, 1.8V

♦ 0.27mW at 100ksps, 1.8V

♦ 3.1µW at 1ksps, 1.8V

♦ <1µA Shutdown Current

♦ External Reference (0.6V to VDD)

♦ AutoShutdown Between Conversions

♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible, 3- or 4-Wire Serial Interface

♦ Small (3mm x 3mm), 10-Pin TDFN or µMAX (3mm x 5mm) Package

Applications

    Portable Datalogging

    Data Acquisition

    Medical Instruments

    Battery-Powered Instruments

    Process Control