ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC SCREEN CNTRL 12BIT 16FN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Touchscreen：4 Wire Resistive
- Resolution (Bits)：12 b
- Interface：SPI
- Voltage Reference：External, Internal
- Voltage - Supply：2.2V ~ 5.25V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-VQFN Exposed Pad
- Supplier Device Package：16-VQFN (4x4)
- Current - Supply：500 µA
- Grade：-
- Qualification：-
Download product information
Overview
The ADS7846IRGVT is a resistive touch screen controller manufactured by Texas Instruments. It features a 12-bit analog-to-digital converter with a sampling rate of 125 kS/s. The device operates on a supply voltage range of 2.2 V to 5.25 V and consumes 280 µA of operating current. It supports serial communication via a 3-wire SPI interface. The component is housed in a 16-pin QFN package measuring 4 mm x 4 mm x 0.9 mm. It functions as a single touch screen controller input and operates within a temperature range of -40 °C to +85 °C.
Feature Summary
- 12-bit resolution with 125 kS/s sampling rate
- 3-wire serial SPI interface compatibility
- Low power consumption of 280 µA
- Wide supply voltage range from 2.2 V to 5.25 V
Applications
- Resistive touch screen control systems
- Portable electronic devices requiring low power interfaces
- Industrial control panels with resistive overlays
Procurement Notes
Verify the specific suffix IRGVT against the manufacturer's latest datasheet to confirm package dimensions and pinout, as suffixes denote packaging variations. Check for end-of-life status or obsolescence notices from Texas Instruments before finalizing procurement plans. Ensure compliance with RoHS directives if required by the target market regulations.
Selection Notes
Select this component when a 12-bit resolution and 125 kS/s speed are required for resistive touch applications. The 16-pin QFN package is suitable for space-constrained designs. Verify that the host microcontroller supports the 3-wire SPI protocol. Confirm that the system voltage falls within the 2.2 V to 5.25 V operational range.
Part Context
The ADS7846 belongs to the ADS7846 family of touch screen controllers from Texas Instruments. This series includes variants such as ADS7846E and ADS7846IGQCR, which share similar electrical characteristics but differ in package types like SSOP-16 or BGA-Microstar-Junior-48. The IRGVT suffix specifically identifies the QFN package variant.
Replacement Considerations
Direct substitutes include other parts within the ADS7846 family, such as ADS7846E or ADS7846EG4, provided the package difference between QFN and SSOP is accommodated in the PCB layout. Cross-reference with ADS7846IGQCR for alternative packaging options.
