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AD7705: 3V/5V, 1 mW, 2-Channel Differential, 16-Bit Sigma-Delta ADC
Product Status:Production
Data
Sheet
Sheet
AD7705 Data Sheet Rev C, 05/2006
(pdf 460kB)
- Product
DetailsFeatures, Specifications, Status, Price, Diagrams, Similar Products, Support
- Documentation
Data Sheet, Application Notes, Tutorials, User Guides, Quality, Lead-Free, Circuit Notes, Videos
- Design Tools,Models,
Drivers & SoftwareDesign Tools, Device Drivers, SPICE, Models, Software
- Evaluation Kits,
Symbols & FootprintsEvaluation Kits, Symbols & Footprints
- Product Recommendations
& Reference DesignsADI Recommends products to be used with this part, Reference Designs, Companion Products
Sample
& BuyPrice, Packaging, Availability, Disti Inventory, Sample, Purchase
Product Details
Product Status:Production
See also AD7792 16-Bit Sigma-Delta ADC with current sources
myAnalogFEATURES and BENEFITS
- Two Fully Differential Input Channel ADCs
- Programmable Gain Front End
Gains from 1 to 128 - Three-Wire Serial Interface
SPI®, QSPI™, MICROWIRE™ and DSP Compatible
Schmitt Trigger Input on SCLK
- Ability to Buffer the Analog Input
- 2.7 V to 3.3 V or 4.75 V to 5.25 V Operation
- Power Dissipation 1 mW max @ 3 V
- Standby Current 8 µA max
- 16-Lead DIP, 16-Lead SOIC and TSSOP Packages
Functional Block Diagram for AD7705
3V/5V, 1 mW, 2-Channel Differential, 16-Bit Sigma-Delta ADC
Other Diagrams for AD7705
3V/5V, 1 mW, 2-Channel Differential, 16-Bit Sigma-Delta ADC
AD7705 Pin Configuration
Functional Block Diagram for AD7705
Similar Products
OF NOTE ...
Documentation
| Title | Content Type | File Type |
|---|---|---|
| AD7705/AD7706: 3V/5V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADC Data Sheet (Rev C, 05/2006) (pdf, 460 kB) | Data Sheets | |
| AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging (pdf, 217 kB) | Application Notes | |
| AN-282: Fundamentals of Sampled Data Systems (pdf, 2131 kB) | Application Notes | |
| AN-607: Selecting a Low Bandwidth (<15 kSPS) Sigma-Delta ADC (pdf, 222 kB) | Application Notes | |
|
AN-615: Peak-to-Peak Resolution Versus Effective Resolution
(pdf, 70 kB)
This application note describes effective resolution and peak-to-peak resolution and highlights the difference between these two specifications. |
Application Notes | |
| AN-101: Cross Plot Generator Allows Quick A/D Converter Evaluation (pdf, 280 kB) | Application Notes | |
|
AN-397: Electrically Induced Damage to Standard Linear Integrated Circuits:
(pdf, 149 kB)
The Most Common Causes and the Associated Fixes to Prevent Reoccurrence |
Application Notes | |
|
AN-347: Shielding and Guarding
(pdf, 688 kB)
How to Exclude Interference-Type Noise. What to do and Why to do it-A Rational Approach |
Application Notes | |
|
AN-342: Analog Signal-Handling for High Speed and Accuracy.
(pdf, 468 kB)
Signal handling techniques for optimizing DAC and ADC performance. |
Application Notes | |
|
AN-280: Mixed Signal Circuit Technologies
(pdf, 2101 kB)
Considers problems which arise when reality (& Murphy) intervene in a design which otherwise seems satisfactory in terms of theory and modeling. |
Application Notes | |
| AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, and Making Things Go Right for a Change (pdf, 76 kB) | Application Notes | |
|
AN-389: Using Sigma-Delta Converters-Part 2
(pdf, 590 kB)
When to Use/How to Use Sigma-Delta ADCs; Continuation of Part 1 Discussion. |
Application Notes | |
|
AN-388: Using Sigma-Delta Converters-Part 1
(pdf, 590 kB)
When to Use/How to Use Sigma-Delta ADCs |
Application Notes | |
|
AN-283: Sigma-Delta ADCs and DACs
(pdf, 1699 kB)
Overview of Sigma-Delta Concepts: Oversampling, Noise Shaping Using the Sigma-Delta Modulator, Digital Filtering and Decimation. |
Application Notes | |
| MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB) | Technical Articles | |
|
Delta-Sigma Rocks RF, As ADC Designers Jump On Jitter
(Electronic Design, 1/12/06) |
Technical Articles | HTML |
|
Harness the Power of Sigma-Delta and Switched Capacitor Technologies in Signal Processing Components
... You can have low-power operation, 16-bit accuracy, and onchip calibration by using state-of-the-art design techniques. (Sensors Online, November 1998) |
Technical Articles | HTML |
| Circuit Suggestions Using Features and Functionality of New Sigma-Delta ADCs | Technical Articles | HTML |
|
Designing and Applying Remote Field Instruments
by Albert O' Grady and Jim Ryan, Analog Devices B.V. ...Good things can come in small packages because of on-chip capabilities (Control Engineering, September 1998) |
Technical Articles | HTML |
|
Ask the Applications Engineer-27: What problems am I most likely to run into when instrumenting an industrial system?
(Analog Dialogue, Vol. 33, No. 2, February, 1999) |
Analog Dialogue | HTML |
| Sigma Delta ADCs (< 15 kSPS) | Product Selection Guide | HTML |
| RAQs index | Rarely Asked Questions | HTML |
| How do I use the serial interface on the AD7705/06/07 ADC? | FAQs/RAQs | HTML |
| What are the general design considerations when using the AD7705/06/07 ADC? | FAQs/RAQs | HTML |
| What are the calibration options on the AD7705/06/07 ADC? | FAQs/RAQs | HTML |
| What Architecture is used in the AD7705/06/07 ADC? | FAQs/RAQs | HTML |
| How do I get the best performance from the AD7705/06/07 ADC? | FAQs/RAQs | HTML |
| Glossary of EE Terms | Glossary | HTML |
Design Tools,Models,Drivers & Software
| Title | Content Type | File Type |
|---|---|---|
|
Sigma-Delta ADC Tutorial
An interactive illustration showing the behavior of an idealized sigma-delta A/D converter. |
Utilities and Conversions | HTML |
|
Sigma Delta Register Configuration Assistant
Easily program the configuration registers for the sigma delta ADCs. Use pull-down menus to determine the correct hex values to load into the registers, and generate pseudo-code. |
Design Calculators | 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
Companion Products
Suggested Companion Products
Recommended Voltage References for the AD7705
Recommended Digital Isolators for the AD7705- For optocoupler alternatives, see our digital isolator selection tables, ADuMxxxx.
- For digital isolators with integrated isolated power, we suggest the ADuM5401, ADuM5402 or the ADuM5403.
- For isolated USB designs in healthcare and industrial control, we recommend the ADuM4160.
- 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
AD7705 Model Options
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.
