The ADS7843 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low onresistance switches for driving touch screens. Typical power dissipation is 750µW at a 125kHz throughput rate and a +2.7V supply. The reference voltage (VREF) can be varied between 1V and +VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces typical power dissipation to under 0.5µW. The ADS7843 is specified down to 2.7V operation.
Low power, high speed, and onboard switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843 is available in an SSOP-16 package and is specified over the –40°C to +85°C temperature range.
Features
● 4-WIRE TOUCH SCREEN INTERFACE
● RATIOMETRIC CONVERSION
● SINGLE SUPPLY: 2.7V to 5V
● UP TO 125kHz CONVERSION RATE
● SERIAL INTERFACE
● PROGRAMMABLE 8- OR 12-BIT RESOLUTION
● 2 AUXILIARY ANALOG INPUTS
● FULL POWER-DOWN CONTROL
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Delivery period
For in-stock parts, orders are estimated to ship out in 3 days. Once shipped, estimated delivery time depends on the below carriers you chose: DHL Express, 3-7 business days. DHL eCommerce,12-22 business days. FedEx International Priority, 3-7 business days EMS, 10-15 business days. Registered Air Mail, 15-30 business days.
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We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping.
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warranty
Returning
Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping.
Warranty
All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation
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