General Description

The MAX1020–MAX1023/MAX1057/MAX1058 integrate a multichannel, 10-bit, analog-to-digital converter (ADC) and an octal, 10-bit, digital-to-analog converter (DAC) in a single IC. These devices also include a temperature sensor and configurable general-purpose I/O ports (GPIOs) with a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. The ADC is available in 8/12/16 inputchannel versions. The octal DAC outputs settle within 2.0µs, and the ADC has a 300ksps conversion rate.

Features

♦ 10-Bit, 300ksps ADC

    Analog Multiplexer with True-Differential Track/Hold (T/H)

    16 Single-Ended Channels or 8 Differential Channels (Unipolar or Bipolar)

    12 Single-Ended Channels or 6 Differential Channels (Unipolar or Bipolar)

    8 Single-Ended Channels or 4 Differential Channels (Unipolar or Bipolar)

    Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL

♦ 10-Bit, Octal, 2µs Settling DAC

    Ultra-Low Glitch Energy (4nV•s)

    Power-Up Options from Zero Scale or Full Scale

    Excellent Accuracy: ±1 LSB INL

♦ Internal Reference or External Single-Ended/ Differential Reference

    Internal Reference Voltage 2.5V or 4.096V

♦ Internal ±1°C Accurate Temperature Sensor

♦ On-Chip FIFO Capable of Storing 16 ADC Conversion Results and One Temperature Result

♦ On-Chip Channel-Scan Mode and Internal Data-Averaging Features

♦ Analog Single-Supply Operation +2.7V to +3.6V or +4.75V to +5.25V

♦ 25MHz, SPI/QSPI/MICROWIRE Serial Interface

♦ AutoShutdown Between Conversions

♦ Low-Power ADC

    2.5mA at 300ksps

    22µA at 1ksps

    0.2µA at Shutdown

♦ Low-Power DAC: 1.5µA

♦ Evaluation Kit Available (Order MAX1258EVKIT)

Applications

    Controls for Optical Components

    Base-Station Control Loops

    System Supervision and Control

    Data-Acquisition Systems