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1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/2-Channel Single-Ended, 12-Bit, SAR ADCs

Ultra-Low Power and Supply Voltage Make These ADCs Ideal for Battery-Powered Applications

Product Details

Key Features

Simplified Block Diagram

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Sampling:
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Key Features

  • 312.5ksps, 12-Bit Successive-Approximation Register (SAR) ADCs
  • Single True-Differential Analog Input Channel with Unipolar-/Bipolar-Select Input (MAX1393)
  • Dual Single-Ended Input Channel with Channel-Select Input (MAX1396)
  • ±1 LSB INL, ±1 LSB DNL, No Missing Codes
  • ±2 LSB Total Unadjusted Error (TUE)
  • 70dB SINAD at 75kHz Input Frequency
  • External Reference (0.6V to VDD)
  • Single-Supply Voltage (+1.5V to +3.6V)
  • 0.915mW at 300ksps, 1.8V
  • 0.305mW at 100ksps, 1.8V
  • 3.1µW at 1ksps, 1.8V
  • < 1µA Shutdown Current
  • AutoShutdown Between Conversions
  • SPI-/QSPI-/MICROWIRE-/DSP-Compatible, 3- or 4-Wire Serial Interface
  • Small (3mm x 3mm) 10-Pin TDFN Package

Applications/Uses

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

Description

The MAX1393/MAX1396 micropower, serial-output, 12-bit, analog-to-digital converters (ADCs) operate with a single power supply from +1.5V to +3.6V. These ADCs feature automatic shutdown, fast wake-up, and a highspeed 3-wire interface. Power consumption is only 0.734mW (VDD = +1.5V) at the maximum conversion rate of 312.5ksps. AutoShutdown™ between conversions reduces power consumption at slower throughput rates.

The MAX1393/MAX1396 require an external reference VREF that has a wide range from 0.6V to VDD. The MAX1393 provides one true-differential analog input that accepts signals ranging from 0 to VREF (unipolar mode) or ±VREF/2 (bipolar mode). The MAX1396 provides two single-ended inputs that accept signals ranging from 0 to VREF. Analog conversion results are available through a 5MHz 3-wire SPI™-/QSPI™-/MICROWIRE™-/digital signal processor (DSP)-compatible serial interface. Excellent dynamic performance, low voltage, low power, ease of use, and small package sizes make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low power consumption and minimal space.

The MAX1393/MAX1396 are available in a space-saving (3mm x 3mm) 10-pin TDFN package. The parts operate over the extended (-40°C to +85°C) temperature range.

Simplified Block Diagram

MAX1393, MAX1396: Typical Operating Circuit MAX1393, MAX1396: 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.