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 16SSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Touchscreen：5 Wire Resistive
- Resolution (Bits)：12 b
- Interface：Serial
- Voltage Reference：External
- Voltage - Supply：2.7V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-SSOP
- Current - Supply：280 µA
- Grade：-
- Qualification：-
Download product information
Overview
The ADS7845E is a resistive touch screen controller manufactured by Texas Instruments, designed for 5-wire touch panel applications. It integrates a 125 kS/s sampling rate and supports both 8-bit and 12-bit resolution modes. The device operates on a single power supply ranging from 2.7 V to 5.5 V with a typical operating current of 280 uA. Communication is handled via a serial interface compatible with standard SPI protocols. Housed in a 16-lead SSOP package, it functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrated 5-wire resistive touch screen controller
- Serial interface compatible with SPI standards
- Configurable 8-bit or 12-bit resolution
- Low power consumption at 280 uA
Applications
- Industrial control panels
- Medical instrumentation displays
- Point-of-sale (POS) terminals
Procurement Notes
The ADS7845E is classified as an End-of-Life (EOL) product. Manufacturers have issued discontinuation notifications indicating that production will cease, requiring verification of remaining stock availability and lead times through authorized distributors before procurement planning.
Selection Notes
Select the ADS7845E specifically for designs utilizing 5-wire resistive touch screens. For 4-wire configurations, the ADS7846 series is the appropriate alternative. Ensure the host microcontroller supports the required serial clock speeds and voltage levels compatible with the 2.7 V to 5.5 V operating range.
Part Context
This component belongs to the ADS7845 family of touch screen controllers. It serves as a dedicated analog front-end solution for converting touch coordinates into digital data for embedded processors, distinct from general-purpose ADCs like the ADS7835 or other variants in the broader data converter portfolio.
Replacement Considerations
As this part is discontinued, verify specific pin-compatible alternatives such as the ADS7846E for 4-wire systems or newer TI touch controllers. Confirm that any substitute maintains the SSOP-16 package and SPI compatibility.
