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