Add to Signal Chain Designer

AD7091R:  1 MSPS, ULTRALOW POWER, 12-BIT ADC WITH ON-CHIP REFERENCE IN 10-LEAD LFCSP AND MSOP

Product Details

Product Status:Recommended for New Designs

The AD7091R is a 12-bit successive approximation analog-to-digital converter (ADC) that offers ultralow power consumption (typically 349 µA at 3 V and 1 MSPS) while achieving fast throughput rates (1 MSPS with a 50 MHz SCLK). The AD7091R uses advanced design and process techniques to achieve this very low power dissipation at high throughput rates. The part also features an on-chip, accurate 2.5 V reference.

Operating from a single 2.7 V to 5.25 V power supply, the part contains a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 7 MHz. The AD7091R also features an on-chip conversion clock and high speed serial interface. The conversion process and data acquisition are controlled using a CONVST signal and an internal oscillator.


Product Highlights

Low Power:
  • Lowest Power 12-Bit SAR ADC Available
    bullet349 μA typical at 3 V and 1 MSPS
    bullet264 nA typical at 3 V in power-down mode
  • Flexible Power/Throughput Rate Management
    bulletAverage power scales with the throughput rate
    bulletPower-down mode allows the average power consumption to be reduced for intermittent or one shot conversion scenarios
Precision:
  • ±1 LSB max INL
Flexibility:
  • Single supply operation with separate VDRIVE pin. The AD7091R operates from a single 2.7 V to 5.25 V supply. The VDRIVE function allows the serial SPI® interface to independently connect directly to 1.8 V to 5 V processors
  • On-chip, accurate 2.5 V reference, which can also be overdriven with external 2.7V to 5.25V reference
  • Temperature range from −40°C to +125°C spans numerous end markets
Small Package:
  • Available in 2mm x 3mm10-lead LFCSP, with alternative pinned MSOP package
Applications

Instrumentation and Measurement
  • Battery and USB powered systems
    bulletData acquisition systems
    bulletHandheld meters
  • Field Instruments
Consumer
  • Battery powered devices
Communications
  • Optical systems
  • Mobile communications
Medical
  • Battery Operated Medical instruments
    bulletElectrocardiograms and heart rate monitors

FEATURES and BENEFITS

  • Fast throughput rate of 1 MSPS
  • Specified for VDD of 2.7 V to 5.25 V
  • Logic voltage VDRIVE of 1.65 V to 5.25 V
  • INL of ±1 LSB maximum
  • Analog input range of 0 V to VREF
  • Ultralow power
    349 µA typical at 3 V and 1 MSPS
    264 nA typical at 3 V in power-down mode
  • Internal 2.5 V reference, ±4.5 ppm/°C typical drift
  • Wide input bandwidth
  • Flexible power/throughput rate management
  • High speed serial interface
    SPI®/QSPI™/MICROWIRE™/DSP compatible
  • Busy indicator
  • 10-lead, 3 mm × 2 mm LFCSP and 10-lead MSOP packages
  • Temperature range of −40°C to +125°C

Functional Block Diagram for AD7091R

Similar Products

Low Resolution - Single Channel Unipolar/Bipolar 8/10/12-Bit PulSAR ADCs

AD7091R Enables Power Budget Optimization

Documentation

Title Content Type File Type
AD7091R: 1 MSPS, Ultralow Power, 12-Bit ADC in 10-Lead LFCSP and MSOP Data Sheet (Rev 0, 08/2012) (pdf, 447 kB) Data Sheets PDF
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators  (pdf, 640 kB) Application Notes PDF
AN-931: Understanding PulSAR ADC Support Circuitry  (pdf, 299 kB)
This application note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them.
Application Notes PDF
AN-932: Power Supply Sequencing  (pdf, 95 kB) Application Notes PDF
AN-877: Interfacing to High Speed ADCs via SPI  (pdf, 1594 kB) Application Notes PDF
AN-935: Designing an ADC Transformer-Coupled Front End  (pdf, 363 kB) Application Notes PDF
AN-742: Frequency Domain Response of Switched-Capacitor ADCs  (pdf, 401 kB) Application Notes PDF
CN0350: 12-Bit, 1 MSPS, Single-Supply, Two-Chip Data Acquisition System for Piezoelectric Sensors  (pdf, 750 kB) Circuit Note PDF
CN0337: 12-Bit, 300 kSPS, Single-Supply, Fully Isolated RTD Temperature Measurement System with 3-Wire Compensation  (pdf, 369 kB) Circuit Note PDF
CN-0335: 12-Bit, 300 kSPS, Single-Supply, Fully Isolated, Data Acquisition System for ±10 V Inputs  (pdf, 270 kB) Circuit Note PDF
CN-0336: 12-Bit, 300 kSPS, Single-Supply, Fully Isolated, Data Acquisition System for 4-20 mA Inputs  (pdf, 211 kB) Circuit Note PDF
CN0247: 12-Bit ,1 MSPS, Single-Supply, Low Power Data Acquisition System  (pdf, 228 kB) Circuit Note PDF
AD7091R Enables Power Budget Optimization Videos HTML
The Data Conversion Handbook Design Handbooks HTML
MT-031: Grounding Data Converters and Solving the Mystery of  (pdf, 144 kB) Tutorials PDF
MT-002: What the Nyquist Criterion Means to Your Sampled Data System Design  (pdf, 152 kB) Tutorials PDF
MT-001: Taking the Mystery out of the Infamous Formula, "SNR=6.02N + 1.76dB," and Why You Should Care  (pdf, 94 kB) Tutorials PDF
UG-409: Evaluation Board for the AD7091R Analog-to-Digital Converter  (pdf, 1662 kB) User Guides PDF
MS-2124: Understanding AC Behaviors of High Speed ADCs  (pdf, 276 kB) Technical Articles PDF
Nine Often Overlooked ADC Specifications  (pdf, 445 kB)
Analog-to-digital converters (ADCs) have many specifications; some are more important for a given application than others. Understanding these specifications and controlling external devices affecting the ADC will lead to better performance.
Technical Articles PDF
Analog Devices’ A/D Converter with Internal Reference Delivers Lowest Power, Highest Accuracy and Smallest Package in its Class (05 Sep 2012) Press Releases HTML
SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
Product Selection Guide PDF
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Engineered. Tested. Ready to Integrate.
Learn More

Companion Products

Suggested Companion Products


Recommended Driver Amplifiers for the AD7091R Recommended External References for the AD7091R
  • For a 3V, low power, low noise, we recommend the ADR4530 or the REF193.
  • For a 5V, low power, low noise, we recommend the ADR4550 or the REF195.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

Were these recommendations helpful?

SampleSample & Buy

Price, packaging, availability

AD7091R Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7091RBCPZ-RL Status: Production 10 ld LFCSP (2x3mm w/0.9x2.44mmEP) 10 Ind Reel, 10000 - $2.15 Y  Material Info PCN Purchase
AD7091RBCPZ-RL7 Status: Production 10 ld LFCSP (2x3mm w/0.9x2.44mmEP) 10 Ind Reel, 3000 - $2.15 Y  Material Info PCN Purchase Sample
AD7091RBRMZ Status: Production 10 ld MSOP 10 Ind Tube, 50 $2.55 $2.17 Y  Material Info Notify Me Purchase Sample
AD7091RBRMZ-RL7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $2.17 Y  Material Info Notify Me Purchase
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.

AD7091R Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7091RSDZ Status: Production Evaluation Board $59.00 Yes -
EVAL-SDP-CB1Z Status: Production Evaluation Controller Board $99.00 Yes -

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.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close