Features and Benefits

  • Sample Rate: 200ksps
  • Input Ranges
    • Unipolar: 0V to 10V, 0V to 5V and 0V to 4V
    • Bipolar: ±10V, ±5V and ±3.3V
  • Guaranteed No Missing Codes
  • Serial I/O
  • Single 5V Supply
  • Power Dissipation: 65mW Typ
  • Power Down Mode: 50µW
  • SNR: 87dB Typ
  • Operates with Internal or External Reference
  • 28-Pin SSOP and 20-Pin SSO Packages
  • Improved 2nd Source to ADS7809 and AD977A

Product Details

The LTC1609 is a 200ksps, serial sampling 16-bit A/D converter that draws only 65mW (typical) from a single 5V supply. This easy-to-use device includes a sample-and- hold, a precision reference, a switched capacitor successive approximation A/D and trimmed internal clock.

The input range is specified for bipolar inputs of ±10V, ±5V and ±3.3V and unipolar inputs of 0V to 10V, 0V to 5V and 0V to 4V. Maximum DC specs include ±2LSB INL and 16-bit no missing codes overtemperature. It has a typical signal-to-noise ratio of 87dB.

The ADC has a high speed serial interface. The serial output data can be clocked out using either the internal serial shift clock or be clocked out by an external shift clock. A separate convert start input(R/C) and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.


  • Industrial Process Control
  • Multiplexed Data Acquisition Systems
  • High Speed Data Acquisition for PCs
  • Digital Signal Processing

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

LTC1609 Companion Parts

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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.

PCN-PDN Information

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