Features and Benefits

  • Monolithic, 14-Bit, 1Msps ADC
  • +5V Single Supply
  • SNR of 80dB for fIN = 500kHz
  • SFDR of 87dB for fIN = 500kHz
  • Low Power Dissipation: 257mW
  • On-Demand Self-Calibration
  • Differential Nonlinearity Error: ±0.3LSB
  • Integral Nonlinearity Error: ±1.2LSB
  • Three-State, Two's Complement Output Data

Product Details

The MAX1205 is a 14-bit, monolithic, analog-to-digital converter (ADC) capable of conversion rates up to 1Msps. This integrated circuit, built on a CMOS process, uses a fully differential, pipelined architecture with digital error correction and a short self-calibration procedure that corrects for capacitor and gain mismatches and ensures 14-bit linearity at full sample rates. An on-chip track/hold (T/H) maintains superb dynamic performance up to the Nyquist frequency. The MAX1205 operates from a single +5V supply.

The fully differential inputs allow an input swing of ±VREF. The reference is also differential, with the positive reference (RFPF) typically connected to +4.096V and the negative reference (RFNF) connected to analog ground. Additional sensing pins (RFPS, RFNS) are provided to compensate for any resistive-divider action that may occur due to finite internal and external resistances in the reference traces and the on-chip resistance of the reference pins. A single-ended input is also possible using two operational amplifiers.

The power dissipation is typically 257mW at +5V, at a sampling rate of 1Msps. The device employs a CMOS-compatible, 14-bit parallel, two's complement output data format. For higher sampling rates, the MAX1201 is a 2.2Msps pin-compatible upgrade to the MAX1205.

The MAX1205 is available in an MQFP package, and operates over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.


  • Communication Systems
  • Data Acquisition
  • Imaging
  • Medical
  • Scanners

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.

Evaluation Kits (3)

Product Recommendations

MAX1205 Companion Parts

Recommended Related Parts

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