ADS7843IDBQRQ1

Overview

The ADS7843IDBQRQ1 is a 12-bit resolution touchscreen controller designed for automotive applications, certified under AEC-Q100 standards. It supports four-wire resistive touch panels and features a serial interface for data communication. The device operates within a supply voltage range of 2.7V to 5V and consumes 280 µA of supply current. It utilizes an external voltage reference and functions reliably across a temperature range of -40°C to 85°C. The component is housed in a 16-SSOP package with a width of 3.90mm, suitable for surface-mount installation.

Feature Summary

• 12-bit resolution for precise coordinate detection
• AEC-Q100 qualified for automotive reliability
• Low power consumption of 280 µA
• Serial interface compatibility

Applications

• Automotive infotainment systems
• In-dash navigation displays
• Vehicle instrument clusters

Procurement Notes

Verify the specific suffix IDBQRQ1 against the manufacturer's official datasheet to confirm the package type and temperature grade. Ensure that the external voltage reference circuitry matches the required specifications for the intended application environment. Check for any recent Product Change Notices regarding manufacturing site or material updates.

Selection Notes

Select this component when a 12-bit resolution is required for resistive touch interfaces in automotive environments. Confirm that the system design provides an external voltage reference, as the ADS7843 does not include an internal one. Ensure the PCB layout accommodates the 16-SSOP package dimensions and meets the moisture sensitivity level (MSL 3) handling requirements.

Part Context

This part belongs to the ADS7843 family of touchscreen controllers. The 'Q1' suffix indicates automotive qualification, while 'IDBQR' specifies the industrial temperature range and SSOP package variant. It serves as a specialized input interface solution for vehicle display systems requiring durable and accurate touch control.

Replacement Considerations

Consult the official ADS7843-Q1 datasheet for pin-compatible alternatives within the Texas Instruments portfolio. Verify functional equivalence regarding resolution, interface type, and operating voltage before substituting.