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AD7467:  1.6 V Micro-Power 10-Bit ADC

The AD7466/AD7467/AD7468* are 12-/10-/8-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single 1.6 V to 3.6 V power supply and feature throughput rates up to 200 kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 3 ...More

AD7467:  1.6 V Micro-Power 10-Bit ADC

Product Description

The AD7466/AD7467/AD7468* are 12-/10-/8-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single 1.6 V to 3.6 V power supply and feature throughput rates up to 200 kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 3 MHz.

The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS, and the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus, the analog input range for the part is 0 V to VDD. The conversion rate is determined by the SCLK.

Product Highlights

  1. Specified for supply voltages of 1.6 V to 3.6 V
  2. 12-, 10-, and 8-bit ADCs in SOT-23 and MSOP packages
  3. High throughput rate with low power consumption. Power consumption in normal mode of operation at 100 kSPS and 3 V is 0.9 mW maximum
  4. Flexible power/serial clock speed management. The conversion rate is determined by the serial clock, allowing the conversion time to be reduced through increases in the serial clock speed. Automatic power-down after conversion allows the average power consumption to be reduced when in power-down. Current consumption is 0.1 μA maximum and 8 nA typically when in power-down
  5. Reference derived from the power supply
  6. No pipeline delay
  7. The part features a standard successive approximation ADC with accurate control of conversions via a CS input

Applications

  • Battery-powered systems
  • Medical instruments
  • Remote data acquisition
  • Isolated data acquisition

    • *Protected by U.S. Patent No. 6,681,332

    Data Sheet, Rev. C, 5/07

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    EVALUATION BOARDS & DEVELOPMENT KITS

    • Specified for VDD of 1.6 V to 3.6 V
    • Low power:
      0.62 mW typical at 100 kSPS with 3 V supplies
      0.48 mW typical at 50 kSPS with 3.6 V supplies
      0.12 mW typical at 100 kSPS with 1.6 V supplies
    • Fast throughput rate: 200 kSPS
    • Wide input bandwidth:
      71 dB SNR at 30 kHz input frequency
    • Flexible power/serial clock speed management
    • No pipeline delays
    • High speed serial interface:
      SPI/QSPI™/MICROWIRE™/DSP compatible
    • Automatic power-down
    • Power-down mode: 8 nA typical
    • 6-lead SOT-23 package
    • 8-lead MSOP package
    • Resolution (Bits): 10bit
    • T-Put Rate: 200kSPS
    • # Chan: 1
    • Supply V: Single(+1.8),Single(+2.5),Single(+3),Single(+3.3)
    • Pwr Diss: 0.63mW
    • Interface: Ser,SPI
    • Ain Range: Uni Vdd
    • SNR (dB): 61dB
    • Pkg Type: SOP,SOT

    Functional Block Diagram for AD7467

    Similar Products

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    Part# Bits Throughput Rate # of Inputs Operating Pwr Diss
    AD7467 10 200KSPS 1 630µW
    AD7440 10 1MSPS 1 9mW
    AD7441 10 1MSPS 1 9.3mW
    AD7470 10 1.75MSPS 1 12mW
    AD7910 10 250KSPS 1 15mW
    AD7477 10 1MSPS 1 17.5mW
    AD7477A 10 1MSPS 1 17.5mW
    AD7813 10 400KSPS 1 17.5mW
    AD7810 10 350KSPS 1 17.5mW
    AD7277 10 3MSPS 1 19.8mW
    AD9200 10 20MSPS 1 100mW
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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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.