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AD7690: 18-Bit, 1.5 LSB INL, 400 kSPS PulSAR® Differential ADC in MSOP/QFN
Product Status:Production
Data
Sheet
Sheet
AD7690 Data Sheet Rev B, 07/2011
(pdf 736kB)
- 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
myAnalogFEATURES and BENEFITS
- 18-bit resolution with no missing codes
- Throughput: 400 kSPS
- INL: ±0.75 LSB typ, ±1.5 LSB max (±6 ppm of FSR)
- Dynamic range: 102 dB @ 400 kSPS
- Oversampled dynamic range: 125 dB @ 1 kSPS
- Noise-free code resolution: 20 bits @ 1 kSPS
- Effective resolution: 22.7 bits @ 1 kSPS
- SINAD: 101.5 dB @ 1 kHz
- THD: −125 dB @ 1 kHz
- True differential analog input range: ±VREF 0 V to VREF with VREF up to VDD on both inputs
- No pipeline delay
- Single-supply 5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
Functional Block Diagram for AD7690
18-Bit, 1.5 LSB INL, 400 kSPS PulSAR® Differential ADC in MSOP/QFN
Other Diagrams for AD7690
18-Bit, 1.5 LSB INL, 400 kSPS PulSAR® Differential ADC in MSOP/QFN
10-Lead MSOP/10-Lead QFN
10-Lead QFN (LFCSP)
Functional Block Diagram for AD7690
Similar Products
Documentation
| Title | Content Type | File Type |
|---|---|---|
| AD7690: 18-Bit, 1.5 LSB INL, 400 kSPS PulSAR® Differential ADC in MSOP/QFN Data Sheet (Rev B, 07/2011) (pdf, 736 kB) | Data Sheets | |
| AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (pdf, 640 kB) | Application Notes | |
|
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 | |
| AN-932: Power Supply Sequencing (pdf, 95 kB) | Application Notes | |
| AN-935: Designing an ADC Transformer-Coupled Front End (pdf, 363 kB) | Application Notes | |
| MT-074: Differential Drivers for Precision ADCs (pdf, 249 kB) | Tutorials | |
| UG-340: Evaluation Board for the 10-Lead Family 14-/16-/18-Bit PulSAR ADCs (pdf, 4636 kB) | User Guides | |
| Front-End Amplifier and RC Filter Design for a Precision SAR Analog-to-Digital Converter | Technical Articles | HTML |
| MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB) | Technical Articles | |
| MS-2022: Seven Steps to Successful Analog-to-Digital Signal Conversion (Noise Calculation for Proper Signal Conditioning) (pdf, 277 kB) | Technical Articles | |
| MS-2124: Understanding AC Behaviors of High Speed ADCs (pdf, 276 kB) | Technical Articles | |
|
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 | |
|
Analog Claims 18-bit ADCs Are the Smallest
(EDN, 11/1/2005) |
Product Reviews | HTML |
|
18-bit A/D Packs Speed & Precision into MSOP
(eeProductCenter, 11/2/2005) |
Product Reviews | HTML |
|
18-bit ADC Features MSOP Package
(Portable Design, 10/31/2005) |
Product Reviews | HTML |
|
Dimensions in Data Conversion: An Evolving Story
(Electronic Products, April 2006) |
Product Reviews | HTML |
|
High Speed, High Accuracy 14-Bit, 16-Bit, and 18-Bit PulSAR ADCs
(pdf, 3826 kB)
A PulSAR Family Brochure (6/2006) |
Overview | |
| When high performance and low power make the design, ADI converters make the difference. | Overview | HTML |
| RAQs index | Rarely Asked Questions | HTML |
| Glossary of EE Terms | Glossary | HTML |
Design Tools,Models,Drivers & Software
| Title | Content Type | File Type |
|---|---|---|
| AD7685 IBIS Models | IBIS Models | HTML |
| BeMicro FPGA Project for AD7690 with Nios driver | FPGA HDL | HTML |
| AD7690 FMC-SDP Interposer & Evaluation Board / Xilinx KC705 Reference Design | FPGA HDL | 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 Driver Amplifiers for the AD7690
- For low frequency, precision, low bias current applications, we recommend the ADA4627-1, ADA4610-2, or the AD8476.
- For precision, low power, low distortion applications, we recommend the ADA4841-1, ADA4940-1 or the ADA4941-1.
- For high frequency, low noise, low distortion applications, we recommend the ADA4899, ADA4897-1, or the AD8021.
- For additional driver amplifier selections, we recommend selecting the product category and filtering on our parametric search tables.
- For low drift, low noise and high current output applications, we recommend the ADR435 reference family.
- For low drift, low noise and low dropout, we recommend the ADR445 reference family.
- For low drift, low noise, low power, we recommend the ADR4550 reference family.
- For additional voltage reference selections, we recommend filtering on our parametric search tables.
Recommended Digital Isolators for the AD7690
- For SPI Interface, lowest power, 2.5 kVrms isolation, we recommend the ADuM1401.
- For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation, we recommend the ADuM3401.
- For SPI Interface, low power, 5.0 kVrms isolation, we recommend the ADuM4401.
- For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V), we recommend the ADuM3481.
- For additional digital isolator selections, we recommend filtering on our parametric search tables.
- 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
AD7690 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.
