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AD7466:  1.6 V Micro-Power 12-Bit ADC

Product Details


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

FEATURES and BENEFITS

  • 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

Functional Block Diagram for AD7466

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Documentation

Title Content Type File Type
AD7466/AD7467/AD7468: 1.6 V, Micropower 12-/10-/8-Bit ADCs Data Sheet (Rev C, 05/2007) (pdf, 578 kB) Data Sheets PDF
AD7466-KGD: Known Good Die Data Sheet (Rev A, 10/2014) (pdf, 172 kB) Data Sheets PDF
CN-0178: Software-Calibrated, 50 MHz to 9 GHz, RF Power Measurement System  (pdf, 179 kB) Circuit Note PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
How to Save Power in Battery Applications Using the Power-Down Mode in an ADC
by Mercedes Casamayor and Claire Croke, Analog Devices, Inc. (Analog Dialogue, Vol. 37, 9/2003)
Analog Dialogue HTML
Analog Devices’ RMS Power Detector Offers Unparalleled Frequency Performance and Flexibility (25 Mar 2013) Press Releases HTML
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog  (pdf, 1885 kB)
8- to 18-Bit SAR ADCs with Sample Rates up to 3 MSPS -- The latest additions to ADI’s ADC portfolio offer unrivaled functionality in terms of channel count and power supply voltage, optimal power/speed ratios, and the smallest packages to meet the demands of any data acquisition application, including portable, industrial, medical, wireless, and communications.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Product Recommendations & Reference Designs

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Companion Products

Suggested Companion Products


Recommended Input Buffer Amplfiers for the AD7466

  • For precision, low noise, low cost, we recommend the AD8510.
  • For precision, low offset, low drift, we recommend the ADA4627.
  • For ultra low noise, low distortion, we recommend the AD8597.
Recommended Vdd source. for the AD7466
  • For a low power, 2.048V supply, we recommend the REF191 or the ADR3420 precision reference.
  • For a low power, 2.5V supply, we recommend the REF192 precision reference.
  • For a low power, 3.0V supply, we recommend the REF193 precision reference.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD7466 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7466-KGD-DF Status: Production CHIPS OR DIE 0 Tray, 5000 - $25.80 Y  Material Info Notify Me Purchase
AD7466BRM-REEL Status: Last Time Buy 8 ld MSOP 8 Comm. Reel, 3000 - - N  Material Info PCN/PDN Purchase
AD7466BRMZ Status: Production 8 ld MSOP 8 Comm. Tube, 50 $2.79 $2.38 Y  Material Info PCN Purchase Sample
AD7466BRMZ-REEL Status: Last Time Buy 8 ld MSOP 8 Comm. Reel, 3000 - $2.38 Y  Material Info PCN/PDN Purchase
AD7466BRMZ-REEL7 Status: Production 8 ld MSOP 8 Comm. Reel, 1000 - $2.38 Y  Material Info PCN Purchase
AD7466BRTZ-R2 Status: Production 6 ld SOT-23 6 Comm. Reel, 250 $2.79 $2.79 Y  Material Info PCN Purchase
AD7466BRTZ-REEL Status: Last Time Buy 6 ld SOT-23 6 Ind Reel, 10000 - $2.38 Y  Material Info PCN/PDN Purchase
AD7466BRTZ-REEL7 Status: Production 6 ld SOT-23 6 Comm. Reel, 3000 - $2.38 Y  Material Info PCN Purchase Sample
Price Table Help

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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