Product Details
| General Description The MXB7843 is an industry-standard 4-wire touchscreen controller. It contains a 12-bit sampling analogto-digital converter (ADC) with a synchronous serial interface and low on-resistance switches for driving resistive touch screens. The MXB7843 uses an external reference. The MXB7843 can make absolute or ratio metric measurements. The MXB7843 has two auxiliary ADC inputs. All analog inputs are fully ESD protected, eliminating the need for external TransZorb™ devices. Features ♦ ESD-Protected ADC Inputs ±15kV IEC 61000-4-2 Air-Gap Discharge ±8kV IEC 61000-4-2 Contact Discharge ♦ Pin Compatible with MXB7846 ♦ +2.375V to +5.25V Single Supply ♦ 4-Wire Touch-Screen Interface ♦ Ratiometric Conversion ♦ SPI™/QSPI™, 3-Wire Serial Interface ♦ Programmable 8-/12-Bit Resolution ♦ Two Auxiliary Analog Inputs ♦ Automatic Shutdown Between Conversions ♦ Low Power 270µA at 125ksps 115µA at 50ksps 25µA at 10ksps 5µA at 1ksps 2µA Shutdown Current Applications Personal Digital Assistants Portable Instruments Point-of-Sales Terminals Pagers Touch-Screen Monitors Cellular Phones |
Product Description
| Type | Description |
| ANSC PART# | ANSC- MXB7843EEE+ |
| Category | Integrated Circuits (ICs) |
| Data Acquisition | |
| Touch Screen Controllers | |
| Manufacturer | Original |
| Series | - |
| Packaging | Tube |
| Part Status | Obsolete |
| Touchscreen | 4 Wire Resistive |
| Resolution (Bits) | 12 b |
| Interface | SPI |
| Voltage Reference | External |
| Voltage - Supply | 2.38V ~ 5.25V |
| Current - Supply | 650 µA |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-QSOP |
| Base Product Number | MXB7843 |
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