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MAX1393, MAX1396
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


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Description
FULL DATA SHEET (PDF, 704kB)
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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 high-speed 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) and military (-55°C to +125°C) temperature ranges.

NOTE: This product requires use of the following:

  • MAX1396 EVKIT Firmware
  • MAX1396 EVKIT Software

    Key Features   Applications/Uses
    • 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

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

    Key Specifications:   Precision ADCs (< 5Msps)
    Part Number ADC Resolution (Bits) Input Channels Conv. Rate (ksps) Max. Conv. Time (µs) Data Bus (Bits) Ref. (V) Input Range (V) Diff. In Supply Voltage (V) Typ. Supply Current (mA) Typ. Power (mW) Standby Mode Package Price**
    MAX1393  12 1 312 2.6 Serial Ext. 0 to Vref Yes 1.5
    1.8
    2.5
    3
    3.3
    0.52 0.832 Yes TDFN-EP/10 $2.48 @ 1k
    MAX1396  2  -  µMAX/10
    TDFN-EP/10
    $2.48 @ 1k
    See All Precision ADCs (< 5Msps) (375)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX1393, MAX1396: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-3644; Rev 1; 2005-12-08
    This page last modified: 2008-03-06


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