Overview

Features and Benefits

  • 16-bit/14-bit ADC family
  • Dual simultaneous sampling
  • Fully differential analog inputs
  • 4 MSPS throughput conversion rate
  • SNR (typical)
    • 92.5 dB, VREF = 3.3 V external at AD7380 (16-bit)
    • 85.4 dB, VREF = 3.3 V external at AD7381 (14-bit)
  • On-chip oversampling function
  • Resolution boost function
  • SNR 102.8 dB (typical) with ×32 OSR
  • INL (maximum)
    • 2.0 LSBs at 16-bit
    • 1.0 LSB at 14-bit
  • 2.5 V internal reference at 10 ppm/°C
  • High speed serial interface
  • −40°C to +125°C operation
  • 16-lead LFCSP, 3 mm × 3 mm
  • Wide common-mode range
  • Alert function

Product Details

The AD7380/AD7381 are a 16-bit and 14-bit pin-compatible family of dual simultaneous sampling, high speed, low power, successive approximation register (SAR) analog-to-digital converters (ADC) that operate from a 3.0 V to 3.6 V power supply and feature throughput rates up to 4 MSPS. The analog input type is differential, accepts a wide common-mode input voltage, and is sampled and converted on the falling edge of CS.

Integrated on-chip oversampling blocks improve dynamic range and reduce noise at lower bandwidths. A buffered internal 2.5 V reference is included. Alternatively, an external reference up to 3.3 V can be used.

The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or digital signal processors (DSPs). It is compatible with 1.8 V, 2.5 V, and 3.3 V interfaces, using the separate logic supply.

The AD7380/AD7381 are available in a 16-lead lead frame chip scale package (LFCSP) with operation specified from −40°C to +125°C.

Product highlights

  1. Dual simultaneous sampling and conversion with two complete ADC functions.
  2. Pin-compatible product family.
  3. High 4 MSPS throughput rate.
  4. Space saving 3 mm × 3 mm LFCSP package.
  5. Integrated oversampling block to increase dynamic range, reduce noise, and reduce SCLK speed requirements.
  6. Differential analog inputs with wide common-mode range.
  7. Small sampling capacitor reduces amplifier drive burden.

Applications

  • Motor control position feedback
  • Motor control current sense
  • Sonar
  • Power quality
  • Data acquisition systems
  • EDFA applications
  • I and Q demodulation

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Software & Systems Requirements

Tools & Simulations

IBIS Models

Product Recommendations

AD7381 Companion Parts

Recommended Driver Amplifiers

Recommended Low Dropout Regulators

Recommended Voltage Reference

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.