MAX1246
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MAX1246

+2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 5
1ku List Price Starting From $12.18
Features
  • 4-Channel Single-Ended or 2-Channel Differential Inputs
  • Single-Supply Operation:
    • +2.7V to +3.6V (MAX1246)
    • +2.7V to +5.25V (MAX1247)
  • Internal 2.5V Reference (MAX1246)
  • Low Power:
    • 1.2mA (133ksps, 3V supply)
    • 54µA (1ksps, 3V supply)
    • 1µA (power-down mode)
  • SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
  • Software-Configurable Unipolar or Bipolar Inputs
  • 16-Pin QSOP Package (same area as 8-pin SO)
Additional Details
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The MAX1246/MAX1247 12-bit data-acquisition systems combine a 4-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX1246 operates from a single +2.7V to +3.6V supply; the MAX1247 operates from a single +2.7V to +5.25V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.

The 4-wire serial interface connects directly to SPI™/QSPI™ and MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1246/MAX1247 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions.

The MAX1246 has an internal 2.5V reference, while the MAX1247 requires an external reference. Both parts have a reference-buffer amplifier with a ±1.5% voltage-adjustment range. These devices provide a hard-wired SHDN-bar pin and a software-selectable power-down, and can be programmed to automatically shut down at the end of a conversion. Accessing the serial interface automatically powers up the MAX1246/MAX1247, and the quick turn-on time allows them to be shut down between all conversions. This technique can cut supply current to under 60µA at reduced sampling rates. The MAX1246/MAX1247 are available in a 16-pin DIP and a small QSOP that occupies the same board area as an 8-pin SO.

For 8-channel versions of these devices, see the MAX146/MAX147 data sheet.

Applications

  • Battery-Powered Applications
  • Data Acquisition
  • Medical Instruments
  • Pen Digitizers
  • Portable Data Logging
  • Process Control
Part Models 5
1ku List Price Starting From $12.18

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Documentation

Documentation

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

PCN

Jan 24, 2019

- 1746N

ASSEMBLY

MAX1246ACEE+

PRODUCTION

MAX1246ACEE+T

PRODUCTION

MAX1246BCEE+

PRODUCTION

MAX1246BCEE+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Jan 24, 2019

- 1746N

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ASSEMBLY

MAX1246ACEE+

PRODUCTION

MAX1246ACEE+T

PRODUCTION

MAX1246BCEE+

PRODUCTION

MAX1246BCEE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 2

MAX1247EVKIT

Evaluation Kit for the MAX1246 and MAX1247

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MAX1247EVKIT

Evaluation Kit for the MAX1246 and MAX1247

Evaluation Kit for the MAX1246 and MAX1247

Features and Benefits

  • Proven PC Board Layout
  • Complete Evaluation System
  • Convenient On-Board Test Points
  • Data-Logging Software
  • Source Code Provided
  • Fully Assembled and Tested

Product Detail

The MAX1247 evaluation kit (EV kit) is an assembled and tested surface-mount PC board that demonstrates the 3V, 12-bit, 4-channel MAX1247 analog-to-digital converter.

The MAX1247 evaluation system (EV system) is a complete, low-cost, 4-channel data-acquisition system consisting of a MAX1247 EV kit and a Maxim 3V microcontroller (µC) module. IBM® PC-compatible software provides a handy user interface to exercise the MAX1247's features. Source code is provided.

The MAX1246 EV kit and EV system are identical to the MAX1247 EV kit and EV system except that the MAX1247 is replaced by the MAX1246, which has an internal 2.5V reference.

Order the EV system for comprehensive evaluation of the MAX1247 or MAX1246 using a personal computer. Order the EV kit if you have already purchased the 3V µC module with a previous Maxim EV system, or for custom use in other µC-based systems.

Applications

  • Battery-Powered Applications
  • Data Acquisition
  • Pen Digitizers
  • Portable Data Logging
  • Process Control

MAX1246EVKIT

Evaluation Kit for the MAX1246 and MAX1247

zoom

MAX1246EVKIT

Evaluation Kit for the MAX1246 and MAX1247

Evaluation Kit for the MAX1246 and MAX1247

Features and Benefits

  • Proven PC Board Layout
  • Complete Evaluation System
  • Convenient On-Board Test Points
  • Data-Logging Software
  • Source Code Provided
  • Fully Assembled and Tested

Product Detail

The MAX1247 evaluation kit (EV kit) is an assembled and tested surface-mount PC board that demonstrates the 3V, 12-bit, 4-channel MAX1247 analog-to-digital converter.

The MAX1247 evaluation system (EV system) is a complete, low-cost, 4-channel data-acquisition system consisting of a MAX1247 EV kit and a Maxim 3V microcontroller (µC) module. IBM® PC-compatible software provides a handy user interface to exercise the MAX1247's features. Source code is provided.

The MAX1246 EV kit and EV system are identical to the MAX1247 EV kit and EV system except that the MAX1247 is replaced by the MAX1246, which has an internal 2.5V reference.

Order the EV system for comprehensive evaluation of the MAX1247 or MAX1246 using a personal computer. Order the EV kit if you have already purchased the 3V µC module with a previous Maxim EV system, or for custom use in other µC-based systems.

Applications

  • Battery-Powered Applications
  • Data Acquisition
  • Pen Digitizers
  • Portable Data Logging
  • Process Control

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