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Low-Power, 4-/8-/12-Channel, I²C, 12-Bit ADCs in Ultra-Small Packages

Lowest Power, Smallest Area, I²C, 4-/8-/12-Channel ADCs with Internal Reference

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 4
Conv. Rate (ksps) (max) 94.4
Data Bus I2C
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 1
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 2.048
Bipolar VIN (±V) (max) 1.024
INL (±LSB) 1
Package/Pins UMAX/8
WLP/12
Budgetary
Price (See Notes)
1.6
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Simplified Block Diagram

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 4
Conv. Rate (ksps) (max) 94.4
Data Bus I2C
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 1
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 2.048
Bipolar VIN (±V) (max) 1.024
INL (±LSB) 1
Package/Pins UMAX/8
WLP/12
Budgetary
Price (See Notes)
1.6

Key Features

  • High-Speed I²C-Compatible Serial Interface
    • 400kHz Fast Mode
    • 1.7MHz High-Speed Mode
  • Single-Supply
    • 2.7V to 3.6V (MAX11613/MAX11615/MAX11617)
    • 4.5V to 5.5V (MAX11612/MAX11614/MAX11616)
  • Ultra-Small Packages
    • 8-Pin µMAX (MAX11612/MAX11613)
    • 1.9mm x 2.2mm, 12-Bump WLP (MAX11613)
    • 16-Pin QSOP (MAX11614–MAX11617)
    • 2.14mm x 2.0mm, 16-Bump WLP (MAX11615/MAX11617)
  • Internal Reference
    • 2.048V (MAX11613/MAX11615/MAX11617)
    • 4.096V (MAX11612/MAX11614/MAX11616)
  • External Reference: 1V to VDD
  • Internal Clock
  • 4-Channel Single-Ended or 2-Channel Fully Differential (MAX11612/MAX11613)
  • 8-Channel Single-Ended or 4-Channel Fully Differential (MAX11614/MAX11615)
  • 12-Channel Single-Ended or 6-Channel Fully Differential (MAX11616/MAX11617)
  • Internal FIFO with Channel-Scan Mode
  • Low Power
    • 670µA at 94.4ksps
    • 230µA at 40ksps
    • 60µA at 10ksps
    • 6µA at 1ksps
    • 0.5µA in Power-Down Mode
  • Software-Configurable Unipolar/Bipolar

Applications/Uses

  • Battery-Powered Test Equipment
  • Handheld Portable Applications
  • Medical Instruments
  • Received-Signal-Strength Indicators
  • Solar-Powered Remote Systems
  • System Supervision

Description

The MAX11612–MAX11617 low-power, 12-bit, multichannel analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an I²C-compatible 2-wire serial interface. These devices operate from a single supply of 2.7V to 3.6V (MAX11613/MAX11615/MAX11617) or 4.5V to 5.5V (MAX11612/MAX11614/MAX11616) and require only 670µA at the maximum sampling rate of 94.4ksps. Supply current falls below 230µA for sampling rates under 46ksps. AutoShutdown™ powers down the devices between conversions, reducing supply current to less than 1µA at low throughput rates. The MAX11612/MAX11613 have 4 analog input channels each, the MAX11614/MAX11615 have 8 analog input channels each, while the MAX11616/MAX11617 have 12 analog input channels each. The fully differential analog inputs are software configurable for unipolar or bipolar, and single-ended or differential operation.

The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VDD. The MAX11613/MAX11615/MAX11617 feature a 2.048V internal reference and the MAX11612/MAX11614/MAX11616 feature a 4.096V internal reference.

The MAX11612/MAX11613 are available in an 8-pin µMAX® package and the MAX11613 is available in an ultra-small, 1.9mm x 2.2mm, 12-bump wafer-level package (WLP). The MAX11614–MAX11617 are available in a 16-pin QSOP package and in an ultra-small, 2.14mm x 2.0mm, 16-bump wafer level package (WLP). The MAX11612–MAX11617 are guaranteed over the extended temperature range (-40°C to +85°C). For pin-compatible 10-bit parts, refer to the MAX11606–MAX11611 data sheet. For pin-compatible 8-bit parts, refer to the MAX11600–MAX11605 data sheet.

Simplified Block Diagram

MAX11612, MAX11613, MAX11614, MAX11615, MAX11616, MAX11617: Typical Operating Circuit MAX11612, MAX11613, MAX11614, MAX11615, MAX11616, MAX11617: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .