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),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 ADS7846IRGVR 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 single power supply ranging from 2.2 V to 5.25 V and draws 280 µA during operation. It supports serial communication via a 3-wire SPI interface. The component is housed in a 16-pin QFN package (RGVR) and functions within a temperature range of -40°C to +85°C.
Feature Summary
- 12-bit resolution ADC for precise coordinate detection
- Serial 3-wire SPI interface compatible with standard microcontrollers
- Low power consumption of 280 µA operating current
- Integrated voltage reference and internal clock
Applications
- Handheld devices requiring resistive touch input
- Industrial control panels with HMI interfaces
- Portable medical equipment displays
- Automotive infotainment systems
Procurement Notes
Verify the specific suffix 'RGVR' against the official datasheet to confirm the package type and temperature grade. Confirm RoHS compliance status as manufacturing updates may alter environmental declarations. Check for obsolescence notices or lifecycle changes directly from Texas Instruments documentation before procurement planning.
Selection Notes
Select this component when a dedicated resistive touch controller with integrated ADC is required. Ensure the host system supports a 3-wire SPI interface. Verify that the supply voltage falls within the 2.2 V to 5.25 V range. Consider the 12-bit resolution requirement versus lower-cost alternatives if precision is not critical.
Part Context
The ADS7846 belongs to the ADS784x family of touch screen controllers from Texas Instruments. It is designed specifically for 4-wire resistive touch screens. The RGVR suffix indicates a specific surface-mount package variant, distinct from SSOP or TSSOP options available in the same series.
Replacement Considerations
ADS7846E: Different package (SSOP-16). ADS7846EG4: RoHS-compliant version of the E package. ADS7846IRGVT: Same functional core but different tape-and-reel packaging variant. ADS7846IGQCR: Different package (BGA-Microstar-Junior-48).
