MAX11358B

16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor

Industry's Highest Integrated, Low-Cost, Smart Data-Acquisition System (DAS) for Battery-Powered and Portable Applications

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Overview

  • +1.8V to +3.6V Single-Supply Operation
  • Multichannel, 16-Bit, Sigma-Delta ADC
    • 10sps to 477sps Programmable Conversion Rate
    • Self- and System Offset and Gain Calibration
    • PGA with Gains of 1, 2, 4, or 8
    • Unipolar and Bipolar Modes
    • 10-Input Differential Multiplexer
  • 10-Bit Force-Sense DACs
  • Uncommitted Op Amps
  • Dual SPDT and SPST Analog Switches
  • Selectable References
    • 1.25V, 2.048V, and 2.5V
  • Internal Charge Pump
  • System Support
    • RTC and Alarm Register
    • Internal/External Temperature Sensor
    • Internal Oscillator with Clock Output
    • User-Programmable I/O and Interrupt Generator
    • VDD Monitors
  • SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
  • Space-Saving (6mm x 6mm x 0.8mm), 40-Pin TQFN Package

The MAX11358B smart data-acquisition system (DAS) is based on a 16-bit, sigma-delta analog-to-digital converter (ADC) and system-support functionality for a microprocessor (µP)-based system. The device integrates an ADC, DACs, operational amplifiers, internal selectable-voltage reference, temperature sensors, analog switches, a 32kHz oscillator, a real-time clock (RTC) with alarm, a high-frequency-locked loop (FLL) clock, four user-programmable I/Os, an interrupt generator, and 1.8V and 2.7V voltage monitors in a single chip.

The MAX11358B has dual 10:1 differential input multiplexers (muxes) that accept signal levels from 0 to AVDD. An on-chip 1x to 8x programmable-gain amplifier (PGA) allows measuring low-level signals and reduces external circuitry required.

The MAX11358B operates from a single +1.8V to +3.6V supply and consumes only 1.15mA in normal mode and only 3µA in sleep mode. The MAX11358B has two DACs with one uncommitted op amp.

The serial interface is compatible with either SPI™/QSPI™ or MICROWIRE™, and is used to power up, configure, and check the status of all functional blocks.

The MAX11358B is available in a space-saving, 40-pin TQFN package and is specified over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.

Applications

  • Battery-Powered and Portable Devices
  • Data-Acquisition Systems
  • Electrochemical and Optical Sensors
  • Industrial Control
  • Medical Instruments
MAX11358B
16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor
MAX11358B: Functional Diagram
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Hardware Ecosystem

Parts Product Life Cycle Description
ADC/DAC Combo Converters 4
MAX1414
PRODUCTION Low-Power, 16-Bit Multichannel DAS with Internal Reference, 10-Bit DACs, and RTC
MAX1409
Low-Power, 16-Bit Multichannel DAS with Internal Reference, 10-Bit DACs, and RTC
MAX1408
Obsolete Low-Power, 16-Bit Multichannel DAS with Internal Reference, 10-Bit DACs, and RTC
MAX1407
PRODUCTION Low-Power, 16-Bit Multichannel DAS with Internal Reference, 10-Bit DACs, and RTC
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