AD7191: Pin-Programmable, Ultralow Noise, 24-Bit, Sigma-Delta ADC for Bridge Sensors
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- Documentation
Data Sheet, Application Notes, Tutorials, User Guides, Quality, Lead-Free, Circuit Notes, Videos
- Evaluation Kits,
Symbols & FootprintsEvaluation Kits, Symbols & Footprints
- Product Recommendations
& Reference DesignsADI Recommends products to be used with this part, Reference Designs, Companion Products
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Product Details
myAnalogFEATURES and BENEFITS
- Pin-programmable output rate
- Output data rate: 10 Hz, 50 Hz, 60 Hz, 120 Hz
- Pin-programmable PGA
- Gain: 1, 8, 64, 128
- Pin-programmable power-down and reset
- RMS noise: 15 nV @ 10 Hz (gain = 128)
- Up to 21.5 noise free bits (gain = 1)
- Please see data sheet for additional features
Functional Block Diagram for AD7191
Pin-Programmable, Ultralow Noise, 24-Bit, Sigma-Delta ADC for Bridge Sensors
Other Diagrams for AD7191
Pin-Programmable, Ultralow Noise, 24-Bit, Sigma-Delta ADC for Bridge Sensors
AD7191 Pin Configuration
AD7191 Functional Block Diagram
Similar Products
Documentation
| Title | Content Type | File Type |
|---|---|---|
| AD7191: Pin-Programmable, Ultralow Noise, 24-Bit, Sigma-Delta ADC for Bridge Sensors Data Sheet (Rev A, 05/2009) (pdf, 434 kB) | Data Sheets | |
| CN-0118: Precision Weigh Scale Design Using the AD7191 24-Bit Sigma-Delta ADC with Internal PGA (pdf, 214 kB) | Circuit Note | |
| Tutorial on Technical and Performance Benefits of AD719x Family (pdf, 4889 kB) | Tutorials | |
| UG-280: Evaluation Board for the AD7191 Pin-Programmable, 24-Bit Σ-Δ ADC (pdf, 1346 kB) | User Guides | |
| MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB) | Technical Articles | |
|
High-resolution ADCs — an overview
The dramatic reduction in the cost of high-resolution ADCs brings a number of benefits to designers. (Electronic Products, 4/23/2010) |
Technical Articles | HTML |
| FAQs for the AD719x family. | FAQs/RAQs | HTML |
| RAQs index | Rarely Asked Questions | HTML |
| Glossary of EE Terms | Glossary | HTML |
Evaluation Kits & Symbols & Footprints
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
CN0118:Precision Weigh Scale Design Using the AD7191 24-Bit Sigma-Delta ADC with Internal PGA
Benefits & Features
- Pin programmable gain amplifier
- Simplifies software writes from the processor
- 24-bit pressure application circuit
- Integrated PGA allows for wide array of sensors
Products Used
Explore in Signal Chain Designer
Companion Products
Suggested Companion Products
Recommended Precision References for the AD7191
- For low noise and low power applications, we recommend the ADR421.
- For high current output applications, try the ADR431.
- For additional precision reference selections, we recommend filtering on our our parametric search tables.
- For low noise and low power applications, we recommend the ADA4051-2.
- For more precision and great temperature dirft specs, we recommend the AD8539.
- For higher supply voltages up to +-8V, we recommend the AD8639.
- For additional precision amplifier selections, we recommend selecting the product category and filtering on our parametric search tables.
- For isolated data and power, we recommend the ADuM3470 family in various channel configurations.
- For additional digital isolator selections, we recommend filtering on our parametric search tables.
- For powering the separate AVdd and DVdd supplies, we recommend the ADP3303.
- For selecting voltage regulator products, use ADIsimPower.
- For selecting supervisor products, use the Supervisor Parametric Search.
Were these recommendations helpful?
Sample & Buy
Price, packaging, availability
| Model | Package | Pins | Temp. Range |
Packing, Qty |
Price*(100-499) | Price*1000 pcs | RoHS | View PCN/ PDN | Check Inventory/ Purchase/Sample |
|---|
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.
