Analog Devices Inc. AD4002/AD4006/AD4010 18-Bit SAR ADCs

Analog Devices Inc. AD4002/AD4006/AD4010 18-Bit SAR ADCs are low noise, low power, and high-speed ADCs that operate from 1.8V supply voltage. These ADCs feature ease of use that reduces signal chain complexity, signal chain power consumption, and enables higher channel density. The AD4002, AD4006, and AD4010 provide 2 MSPS, 1 MSPS, and 500 kSPS throughputs respectively. These ADCs provide high-Z mode and long acquisition phase to eliminate high power, high-speed driver, and broadens the range of low power precision amplifiers. The AD4002/AD4006/4010 ADCs are used in automatic test equipment, machine automation, medical equipment, battery-powered equipment, and precision data acquisition systems.

Features

  • 2 MSPS / 1 MSPS / 500 kSPS throughput options
  • ±3.2 LSB maximum INL
  • Guaranteed 18-bit, no missing codes
  • Low power:
    • 9.75mW at 2 MSPS (VDD only)
    • 70µW at 10kSPS, 14mW at 2 MSPS (total)
  • SNR:
    • 95dB typical at 1kHz
    • 95dB typical at 100kHz
  • THD:
    • -125dB typical at 1kHz
    • -108dB typical at 100kHz
  • Serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible
  • Ability to daisy-chain multiple ADCs and busy indicator
  • Ease of use features reduce system power and complexity
    • Input overvoltage clamp circuit
    • Reduced nonlinear input charge kickback
    • High-Z mode
    • Long acquisition phase
    • Input span compression
    • Fast conversion time allows low SPI clock rates
    • SPI-programmable modes, read/write capability. status word
  • Pseudo-differential (single-ended) analog input range:
    • 0V to VREF with VREF between 2.4V to 5.1V
  • Single 1.8V supply operation with 1.71V to 5.5V logic interface
  • SAR architecture: no latency/pipeline delay
  • -40°C to 125°C operating temperature range

Applications

  • Automatic test equipment
  • Machine automation
  • Medical equipment
  • Battery-powered equipment
  • Precision data acquisition systems
     

Functional Block Diagram

Block Diagram - Analog Devices Inc. AD4002/AD4006/AD4010 18-Bit SAR ADCs
Published: 2020-03-16 | Updated: 2022-03-10