Datasheet for AD7843:
- Manufacturer Part Number : AD7843
- Manufacturer : AD
- Description : Touch Screen Digitizer
- Series : AD7843
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Integrated/Special Purpose A/D Converters
- Function : Capacitive to Digital & Touch Screen Controllers
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD7843
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for AD7843. If you need any more information about AD7843, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- 4-wire touch screen interface
- Specified throughput rate of 125 kSPS
- Low power consumption:
1.37 mW max at 125 kSPS with VCC = 3.6 V - Single supply, VCC of 2.2 V to 5.25 V
- Ratiometric conversion
- High speed serial interface
- Programmable 8-bit or 12-bit resolution
- 2 auxiliary analog inputs
- Shutdown mode: 1 µA max
- 16-lead QSOP and TSSOP packages
The AD7843 is a 12-bit successive-approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The part operates from a single 2.2 V to 5.25 V power supply and features throughput rates greater than 125 kSPS. The external reference applied to the AD7843 can be varied from 1 V to +VCC, while the analog input range is from 0 V to VREF. The device includes a shutdown mode that reduces the current consumption to less than 1 µA. This part is available in a 16-lead 0.15" Quarter Size Outline (QSOP) package and a 16-lead Thin Shrink Small Outline (TSSOP) package.
Also see the AD7843 sister part, which is the AD7873. This part is similar to the AD7843 but has added functionality such as an on-chip temperature sensor (-40°C to + 85°C), on-chip 2.5 V reference and direct battery and touch-pressure measurement.
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.