AD7720: CMOS Sigma-Delta Modulator with 90 dB Dynamic Range
This device is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream. The part operates from a +5 V supply and accepts a differential input range ...More
AD7720: CMOS Sigma-Delta Modulator with 90 dB Dynamic Range
Product Description
This device is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream. The part operates from a +5 V supply and accepts a differential input range of 0 V to +2.5 V or ±1.25 V centered about a common-mode bias. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample and hold circuitry. The input information is contained in the output stream as a density of ones. The original information can be reconstructed with an appropriate digital filter.
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AD7949 - 14-Bit, 8-Channel, 250 kSPS PulSAR® ADC
AD7401A - Isolated Sigma-Delta Modulator
EVAL-CED - Converter Evaluation and Development (CED) Board
| Part# | Res | Throughput Rate | # of Inputs | Operating Pwr Diss |
|---|---|---|---|---|
| AD7401 | 16 | 20MSPS | 1 | 100mW |
| AD7720 | 16 | 12.5MSPS | 1 | 215mW |
| AD9235-20 | 12 | 20MSPS | 1 | 110mW |
| AD9237-20 | 12 | 20MSPS | 1 | 120mW |
| AD9203 | 10 | 40MSPS | 1 | 108mW |
| AD9200 | 10 | 20MSPS | 1 | 100mW |
| AD9215-65 | 10 | 65MSPS | 1 | 114mW |
| AD876 | 10 | 20MSPS | 1 | 190mW |
| AD9215-105 | 10 | 105MSPS | 1 | 145mW |
| AD775 | 8 | 20MSPS | 1 | 85mW |
| AD9280 | 8 | 32MSPS | 1 | 110mW |
AD7720 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (100-499) |
Available | ROHS Compilant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD7720BRU | Prodn | 28 ld TSSOP | 28 | Ind | $10.35 | 07/11/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD7720BRU-REEL | Prodn | 28 ld TSSOP | 28 | Ind | - | 07/11/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD7720BRUZ | Prodn | 28 ld TSSOP | 28 | Ind | $9.41 | 07/11/2008 |
Y
Material Declaration |
Add To Cart | Add To Cart |
| AD7720BRUZ-REEL | Prodn | 28 ld TSSOP | 28 | Ind | $ | - |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD7720BRUZ-REEL7 | Prodn | 28 ld TSSOP | 28 | Ind | $ | - |
Y
Material Declaration |
Contact ADI | Add To Cart |
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
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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