General Description
The MAX1021/MAX1043 integrate a multichannel, 10-bit, analog-to-digital converter (ADC) and a 10-bit, digital-toanalog converter (DAC) in a single IC. The devices also include a temperature sensor and configurable generalpurpose I/O ports (GPIOs) with a 25MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. The ADC is available in an eight input-channel version. The DAC outputs settle within 2.0µs, and the ADC has a 225ksps conversion rate.

FEATUREs
♦ 10-Bit, 225ksps ADC
    Analog Multiplexer with True-Differential Track/Hold (T/H)
    Eight Single-Ended Channels or Four Differential
        Channels (Unipolar or Bipolar)
    Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL, No Missing Codes Over Temperature
♦ 10-Bit, Octal, 2µs Settling DAC (MAX1021)
    Ultra-Low-Glitch Energy (4nV•s)
    Power-Up Options from Zero Scale or Full Scale
    Excellent Accuracy: ±0.5 LSB INL
♦ Internal Reference or External Single-Ended/ Differential Reference Internal Reference Voltage (2.5V)
♦ 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 +5.25V
♦ Digital Supply: +2.7V to AVDD
♦ 25MHz, SPI/QSPI/MICROWIRE Serial Interface
♦ AutoShutdown Between Conversions
♦ Low-Power ADC
    2.5mA at 225ksps
    22µA at 1ksps
    0.2µA at Shutdown
♦ Low-Power DAC: 1.5mA
♦ Evaluation Kit Available (Order MAX1258EVKIT)

APPLICATIONs
    Closed-Loop Controls for Optical Components
    and Base Stations
    System Supervision and Control
    Data-Acquisition Systems