Overview

Features and Benefits

  • Complete 12-Bit ADC in SO-8
  • Single Supply 5V or ±5V Operation
  • Sample Rate: 600ksps
  • Power Dissipation: 75mW (Typ)
  • 72dB S/(N + D) and –80dB THD at Nyquist
  • No Missing Codes over Temperature
  • Nap Mode with Instant Wake-Up: 7.5mW
  • Sleep Mode: 60µW
  • High Impedance Analog Input
  • Input Range (1mV/LSB): 0V to 4.096V or ±2.048V
  • Internal Reference Can Be Overdriven Externally
  • 3-Wire Interface to DSPs and Processors (SPI and MICROWIRE Compatible)

Product Details

The LTC1404 is a complete 600ksps, 12-bit A/D converter which draws only 75mW from a 5V or ±5V supplies. This easy-to-use device comes complete with a 160ns sample-and-hold and a precision reference. Unipolar and bipolar conversion modes add to the flexibility of the ADC. The LTC1404 has two power saving modes: Nap and Sleep. In Nap mode, it consumes only 7.5mW of power and can wake up and convert immediately. In the Sleep mode, it consumes 60µW of power typically. Upon power-up from Sleep mode, a reference ready (REFRDY) signal is available in the serial data word to indicate that the reference has settled and the chip is ready to convert.

The LTC1404 converts 0V to 4.096V unipolar inputs from a single 5V supply and ±2.048V bipolar inputs from ±5V supplies. Maximum DC specs include ±1LSB INL, ±1LSB DNL and 45ppm/°C full-scale drift over temperature. Guaranteed AC performance includes 69dB S/(N + D) and –76dB THD at an input frequency of 100kHz over temperature.

The 3-wire serial port allows compact and efficient data transfer to a wide range of microprocessors, microcontrollers and DSPs.

Applications

  • High Speed Data Acquisition
  • Digital Signal Processing
  • Multiplexed Data Acquisition Systems
  • Audio and Telecom Processing
  • Digital Radio
  • Spectrum Analysis
  • Low Power and Battery-Operated Systems
  • Handheld or Portable Instruments

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 (1)

Product Recommendations

LTC1404 Companion Parts

Recommended µModule Isolator

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.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.