MAX1148
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MAX1148

Multichannel, True-Differential, Serial, 14-Bit ADCs

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $17.80
Features
  • 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1148/MAX1149)
  • 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1146/MAX1147)
  • Internal Multiplexer and T/H
  • Single-Supply Operation
    • 4.75V to 5.25V Supply (MAX1146/MAX1148)
    • 2.7V to 3.6V Supply (MAX1147/MAX1149)
  • Internal Reference
    • +4.096V (MAX1146/MAX1148)
    • +2.500V (MAX1147/MAX1149)
  • 116ksps Sampling Rate
  • Low Power
    • 1.1mA (116ksps)
    • 120µA (10ksps)
    • 12µA (1ksps)
    • 300nA (Power-Down Mode)
  • SPI-/QSPI-/MICROWIRE Compatible
  • 20-Pin TSSOP
Additional Details
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The MAX1146–MAX1149 low-power, 14-bit, multichannel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H), voltage reference, and clock. The MAX1146/MAX1148 operate from a single +4.75V to +5.25V supply, and the MAX1147/MAX1149 operate from a single +2.7V to +3.6V supply. All analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.

The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. The serial strobe output (SSTRB) allows convenient connection to digital signal processors. The MAX1146–MAX1149 use an internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions.

The MAX1146/MAX1148 include an internal +4.096V reference, while the MAX1147/MAX1149 include an internal +2.500V reference. All devices accept an external reference from 1.5V to VDD.

The MAX1146–MAX1149 provide a hardware shutdown and two software power-down modes. Using the software power-down modes allows the devices to be powered down between conversions. When powered down, accessing the serial interface automatically powers up the devices. The quick turn-on time allows power-down between all conversions. This technique reduces supply current to under 120µA for quick turn-on. The MAX1146–MAX1149 are available in a 20-pin TSSOP package.

Applications

  • Battery-Powered Instruments
  • Data Acquisition
  • Medical Instruments
  • Portable Data Logging
  • Process Control
Part Models 2
1ku List Price Starting From $17.80

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX1148BCUP+
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Product Lifecycle

PCN

Dec 11, 2018

- 1754N

ASSEMBLY

MAX1148BCUP+

PRODUCTION

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Part Models

Product Lifecycle

PCN

Dec 11, 2018

- 1754N

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ASSEMBLY

MAX1148BCUP+

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 2

MAX1149EVCMODU

Evaluation Kit/Evaluation System for the MAX1149

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MAX1149EVCMODU

Evaluation Kit/Evaluation System for the MAX1149

Evaluation Kit/Evaluation System for the MAX1149

Features and Benefits

  • Proven PC Board Layout
  • Convenient Test Points Provided On Board
  • Data-Logging Software
  • Fully Assembled and Tested

Product Detail

The MAX1149 evaluation system (EV system) is a complete, 8-channel data-acquisition system consisting of a MAX1149 evaluation kit (EV kit) and a Maxim CMODUSB microcontroller (µC) module. The MAX1149 is a high-speed, multichannel, 14-bit data-acquisition system. Windows® 98/2000/XP software provides a convenient user interface to exercise the MAX1149's features.

Order the complete EV system (MAX1149EVCMODU) for comprehensive evaluation of the MAX1149 using a personal computer. Order the EV kit (MAX1149EVKIT) if the CMODUSB module has already been purchased with a previous Maxim EV system, or for custom use in other µC-based systems.

This system can also evaluate the MAX1146/MAX1147/MAX1148. See the Detailed Description of Hardware section for more details. Contact the factory for free samples of these products.

Applications

  • Battery-Powered Instruments
  • Data Acquisition
  • Medical Instruments
  • Portable Data Logging
  • Process Control

MAX1149EVKIT

Evaluation Kit/Evaluation System for the MAX1149

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MAX1149EVKIT

Evaluation Kit/Evaluation System for the MAX1149

Evaluation Kit/Evaluation System for the MAX1149

Features and Benefits

  • Proven PC Board Layout
  • Convenient Test Points Provided On Board
  • Data-Logging Software
  • Fully Assembled and Tested

Product Detail

The MAX1149 evaluation system (EV system) is a complete, 8-channel data-acquisition system consisting of a MAX1149 evaluation kit (EV kit) and a Maxim CMODUSB microcontroller (µC) module. The MAX1149 is a high-speed, multichannel, 14-bit data-acquisition system. Windows® 98/2000/XP software provides a convenient user interface to exercise the MAX1149's features.

Order the complete EV system (MAX1149EVCMODU) for comprehensive evaluation of the MAX1149 using a personal computer. Order the EV kit (MAX1149EVKIT) if the CMODUSB module has already been purchased with a previous Maxim EV system, or for custom use in other µC-based systems.

This system can also evaluate the MAX1146/MAX1147/MAX1148. See the Detailed Description of Hardware section for more details. Contact the factory for free samples of these products.

Applications

  • Battery-Powered Instruments
  • Data Acquisition
  • Medical Instruments
  • Portable Data Logging
  • Process Control

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