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16-SSOP
Integrated Circuits (ICs)

ADS7843IDBQRQ1

Active
Texas Instruments

AUTOMOTIVE 4-WIRE TOUCH SCREEN CONTROLLER

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Search across all available documentation for this part.

DocumentsDatasheetReducing Analog Input Noise in Touch Screen Systems (Rev. A)+1
16-SSOP
Integrated Circuits (ICs)

ADS7843IDBQRQ1

Active
Texas Instruments

AUTOMOTIVE 4-WIRE TOUCH SCREEN CONTROLLER

Deep-Dive with AI

DocumentsDatasheetReducing Analog Input Noise in Touch Screen Systems (Rev. A)+1

Technical Specifications

Parameters and characteristics for this part

SpecificationADS7843IDBQRQ1
Current - Supply280 µA
GradeAutomotive
InterfaceSerial
Mounting TypeSurface Mount
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / Case0.154 in
Package / Case16-SSOP
Package / Case3.9 mm
QualificationAEC-Q100
Resolution (Bits)12 b
Supplier Device Package16-SSOP
Touchscreen4 Wire Resistive
Voltage - Supply [Max]5 V
Voltage - Supply [Min]2.7 V
Voltage ReferenceExternal

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyBulk 161$ 1.87
Cut Tape (CT) 1$ 3.47
Digi-Reel® 1$ 3.47
Tape & Reel (TR) 2500$ 1.74
5000$ 1.68
Texas InstrumentsLARGE T&R 1$ 2.90
100$ 2.40
250$ 1.72
1000$ 1.30

Description

General part information

ADS7843-Q1 Series

The ADS7843-Q1 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low on-resistance 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-Q1 is specified down to 2.7V operation.

Low power, high speed, and onboard switches make the ADS7843-Q1 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843-Q1 is available in an SSOP-16 package and is specified over the –40°C to +85°C temperature range.

The ADS7843-Q1 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low on-resistance 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-Q1 is specified down to 2.7V operation.