General Description

The MAX1393/MAX1396 micropower, serial-output, 12-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 0.734mW (VDD = +1.5V) at the maximum conversion rate of 312.5ksps. AutoShutdown™ between conversions reduces power consumption at slower throughput rates.

Features

♦ 312.5ksps, 12-Bit Successive-Approximation Register (SAR) ADCs

♦ Single True-Differential Analog Input Channel with Unipolar-/Bipolar-Select Input (MAX1393)

♦ Dual Single-Ended Input Channel with Channel Select Input (MAX1396)

♦ ±1 LSB INL, ±1 LSB DNL, No Missing Codes

♦ ±2 LSB Total Unadjusted Error (TUE)

♦ 70dB SINAD at 75kHz Input Frequency

♦ External Reference (0.6V to VDD)

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

♦ 0.915mW at 300ksps, 1.8V

♦ 0.305mW at 100ksps, 1.8V

♦ 3.1µW at 1ksps, 1.8V

♦ < 1µA Shutdown Current

♦ AutoShutdown Between Conversions

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

♦ Small (3mm x 3mm) 10-Pin TDFN Package

Applications

    Portable Datalogging

    Data Acquisition

    Medical Instruments

    Battery-Powered Instruments

    Process Control