1. Products
  2. A/D Converters (ADC)
  3. Precision A/D Converters
  4. Multiplexed A/D Converters
  5. MAX1204


Features and Benefits

  • 8-Channel Single-Ended or 4-Channel Differential Inputs
  • Operates from +5V Single or ±5V Dual Supplies
  • User-Adjustable Output Logic Levels (2.7V to 5.25V)
  • Low Power
    • 1.5mA (Operating Mode)
    • 2µA (Power-Down Mode)
  • Internal Track/Hold, 133kHz Sampling Rate
  • Internal 4.096V Reference
  • SPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
  • Software-Configurable Unipolar/Bipolar Inputs
  • 20-Pin PDIP/SSOP
  • Pin-Compatible 12-Bit Upgrade: MAX1202

Product Details

The MAX1204 is a 10-bit data-acquisition system specifically designed for use in applications with mixed +5V (analog) and +3V (digital) supply voltages. It operates with a single +5V analog supply or dual ±5V analog supplies, and combines an 8-channel multiplexer, internal track/hold, and serial interface with high conversion speed and low power consumption.
A 4-wire serial interface connects directly to SPI/MICROWIRE® devices without external logic, and a serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1204 uses either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The serial interface operates at up to 2MHz.
The MAX1204 features an internal 4.096V reference and a reference-buffer amplifier that simplifies gain trim. It also has a VL pin that supplies power to the digital outputs. Output logic levels (3V, 3.3V, or 5V) are determined by the value of the voltage applied to this pin.
A hard-wired active-low SHDN pin and two software-selectable power-down modes are provided. Accessing the serial interface automatically powers up the device. A quick turn-on time allows the MAX1204 to be shut down between conversions, enabling the user to optimize supply currents. By customizing power-down between conversions, supply current can drop below 10µA at reduced sampling rates.
The MAX1204 is available in 20-pin SSOP and PDIP packages, and is specified for the commercial and extended temperature ranges.


  • 5V/3V Mixed-Supply Systems
  • Battery-Powered Applications
  • Data Acquisition
  • Medical Instruments
  • Process Control

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

MAX1204 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX1204ACAP+ Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204AEAP+ Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204AEAP+T Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204BCAP+ Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204BCAP+T Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204BCPP+ Material Declaration Reliability Data Plastic Dual-In-Line, Narrow (0.3in)
MAX1204BEAP+ Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1204BEAP+T Material Declaration Reliability Data 20-SSOP-5.3_MM
Wafer Fabrication Data MAX1204 Reliability Data

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