CapTouch⑩ Programmable Controller for Single-Electrode Capacitance Sensors
Hersteller : | Analog Devices, Inc |
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Verpackung/Behälter : | QFN |
Produkt der Kategorien : | Integrated/Special Purpose A/D Converters ; Capacitive to Digital & Touch Screen Controllers |
Datasheet: | AD7147 Datasheet (PDF) |
RoHs Status: | Lead free/RoHS Compliant |
Lagerbestand: | 101 |
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AD7147 Beschreibung
The AD7147 is an integrated CDC with on-chip environmental calibration. The CDC has 13 inputs channeled through a switch matrix to a 16-bit, 250 kHz sigma-delta (Σ-Δ) converter. The CDC is capable of sensing changes in the capacitance of the external sensors and uses this information to register a sensor activation. By programming the registers, the user has full control over the CDC setup.
High resolution sensors require minor software to run on the host processor.
The AD7147 is designed for single electrode capacitance sensors (grounded sensors). There is an active shield output to minimize noise pickup in the sensor.
The AD7147 has on-chip calibration logic to compensate for changes in the ambient environment. The calibration sequence is performed automatically and at continuous intervals as long as the sensors are not touched. This ensures that there are no false or nonregistering touches on the external sensors due to a changing environment.
The AD7147 has an SPI-compatible serial interface, and the AD7147-1 has an I2C®-compatible serial interface. Both parts have an interrupt output, as well as a GPIO. There is a VDRIVE pin to set the voltage level for the serial interface independent of VCC.
The AD7147 is available in a 24-lead, 4 mm × 4 mm LFCSP and operates from a 2.6 V to 3.6 V supply. The operating current con-sumption in low power mode is typically 26 μA for 13 sensors.
Feature
- Programmable capacitance-to-digital converter (CDC)Femtofarad resolution13 capacitance sensor inputs9 ms update rate, all 13 sensor inputsNo external RC components requiredAutomatic conversion sequencer
- On-chip automatic calibration logicAutomatic compensation for environmental changesAutomatic adaptive threshold and sensitivity levels
- Register map is compatible with the AD7142
- On-chip RAM to store calibration data
- SPI-compatible (serial-peripheral-interface-compatible) serial interface (AD7147)
- I2C-compatible serial interface (AD7147-1)
- Separate VDRIVE level for serial interface
- Interrupt output and general-purpose input/output (GPIO)
- 24-lead, 4 mm × 4 mm LFCSP
- See datasheet for additional features
Anwendungen
- Cell phones
- Personal music and multimedia players
- Smart handheld devices
- Television, A/V, and remote controls
- Gaming consoles
- Digital still cameras
(Bild: Pinout)
(Bild: Diagram)
Technische Parameter
- Device Primary Function
- Capacitance to Digital
- # of Channels
- 13
- Resolutionbits
- 16
- Sample Ratemax | SPS
- -
- Data Output Interface
- Serial I2C, Serial SPI
- Cin Base Offset Rangetyp | F
- 20p
- Cin Ranges
- ±8
- Istyp | A
- 0.9m
AD7147 Datasheet
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AD7147 Technical Documentation/Data sheet
AD7147 Verwandte besondere
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- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- UPS
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- TNT
- $25.00-$65.00 (0.50 KG)
- 2-5 days
- EMS
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time:Shipping fee depend on different zone and country.
Zahlung
- Zahlungsbedingungen
- Hand Fee
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
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Verpackung
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Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Garantien
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that AD7147 is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their AD7147 devices; we pay more attention to the channels and quality of AD7147 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of AD7147 chips? Including ADI original factory information, Integrated/Special Purpose A/D Converters ; Capacitive to Digital & Touch Screen Controllers application, AD7147 pictures?
- You can use Jotrin's intelligent search engine, or filter by Integrated/Special Purpose A/D Converters ; Capacitive to Digital & Touch Screen Controllers category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's AD7147 price and stock displayed on the platform accurate?
- The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AD7147, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online. - Q: What forms of payment can I use in Jotrin?
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- Q: How is the shipping arranged and track my package?
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of AD7147?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the AD7147 we delivered, we will accept the replacement or return of the AD7147 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of AD7147.
(3)The AD7147 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as AD7147 datasheet pdf, AD7147 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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