ADS7843E/2K5
Resistive Touch Screen 4-Wire 16-Pin SSOP T/R
| Quantity | Unit Price(USD) | Ext. Price |
|---|---|---|
| 1 | $2.420 | $2.42 |
| 10 | $2.284 | $22.84 |
| 30 | $2.204 | $66.12 |
| 100 | $0.913 | $91.30 |
| 500 | $0.874 | $437.00 |
| 1000 | $0.856 | $856.00 |
Inventory:8,774
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Part Number : ADS7843E/2K5
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Package/Case : SSOP
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Brands : TI
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Components Categories : Touchscreen controllers
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Datesheet : ADS7843E/2K5 DataSheet (PDF)
Overview of ADS7843E/2K5
The ADS7843 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low on-resistance switches for driving touch screens. Typical power dissipation is 750uW at a 125kHz throughput rate and a +2.7V supply. The reference voltage (VREF) can be varied between 1V and +VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces typical power dissipation to under 0.5uW. The ADS7843 is specified down to 2.7V operation.
Low power, high speed, and onboard switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843 is available in an SSOP-16 package and is specified over the 40°C to +85°C temperature range.
Key Features
- 4-WIRE TOUCH SCREEN INTERFACE
- RATIOMETRIC CONVERSION
- SINGLE SUPPLY: 2.7V to 5V
- UP TO 125kHz CONVERSION RATE
- SERIAL INTERFACE
- PROGRAMMABLE 8-OR 12-BIT RESOLUTION
- 2 AUXILIARY ANALOG INPUTS
- FULL POWER-DOWN CONTROL
- APPLICATIONS
- PERSONAL DIGITAL ASSISTANTS
- PORTABLE INSTRUMENTS
- POINT-OF-SALES TERMINALS
- PAGERS
- TOUCH SCREEN MONITORS
US Patent No. 6246394
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Status | Active | Touchscreen | 4 Wire Resistive |
| Resolution (Bits) | 12 b | Interface | Serial |
| Voltage Reference | External | Voltage - Supply | 2.7V ~ 5V |
| Current - Supply | 2.5 µA | Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Package / Case | SSOP-16 |
| Supplier Device Package | 16-SSOP | Base Product Number | ADS7843 |
| Manufacturer | Texas Instruments | Product Category | Touch Screen Controllers |
| RoHS | Details | Series | ADS7843 |
| Type | Resistive Touch Controller | Input Type | 1 TSC |
| Sampling Rate | 125 kS/s | Resolution | 8 bit, 12 bit |
| Interface Type | 4-Wire, Serial | Supply Voltage - Max | 5 V |
| Supply Voltage - Min | 2.7 V | Operating Supply Current | 80 uA |
| Minimum Operating Temperature | - 40 C | Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT | Brand | Texas Instruments |
| Moisture Sensitive | Yes | Operating Supply Voltage | 2.7 V to 5 V |
| Product Type | Touch Screen Controllers | Factory Pack Quantity | 2500 |
| Subcategory | Data Converter ICs | Unit Weight | 0.002603 oz |
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