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Part Number: ADD8702
Description: The ADD8702 is a low cost, mask programmable, 12-channel gamma reference generator, plus an adjustable VCOM driver. Thi...
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ADD8702
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DataSheet
General Description
ADD8702 General Description
The ADD8702 is a low cost, mask programmable, 12-channel gamma reference generator, plus an adjustable VCOM driver. This part is designed to provide gamma correction for high resolution TFT LCD panels. The 12 gamma reference levels and VCOM are mask programmable to 0.3% resolution using the on-chip 500 chain resistor string. This reduces component and board costs.
The ADD8702 provides a complete programmed set of gamma voltage references for the LCD source drivers. These references settle quickly to load change. The VCOM output is stable with high capacitive loads and can source or sink 250 mA peak current. The VCOM output level can be adjusted using an external
trim-potentiometer or discrete resistors.
ADD8702 Maximum Ratings
Supply Voltage (VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Storage Temperature Range . . . . . . . . . . . . .65°C to +150°C
Operating Temperature Range . . . . . . . . . . . . 40°C to +85°C
Junction Temperature Range . . . . . . . . . . . . .65°C to +150°C
Lead Temperature Range (Soldering, 60 sec.) . . . . . . . . 300°C
ESD Tolerance (HBM) . . . . . . . . . . . . . . . . . . . . . . . ±1,000 V
Storage Temperature Range . . . . . . . . . . . . .65°C to +150°C
Operating Temperature Range . . . . . . . . . . . . 40°C to +85°C
Junction Temperature Range . . . . . . . . . . . . .65°C to +150°C
Lead Temperature Range (Soldering, 60 sec.) . . . . . . . . 300°C
ESD Tolerance (HBM) . . . . . . . . . . . . . . . . . . . . . . . ±1,000 V
ADD8702 Features
Programmable 12-Channel Gamma Reference Generator
Mask Programmable Adjustable VCOM Buffer
Upper/Lower Outputs Swing to VDD/GND
Continuous Output Current: 10 mA
VCOM Peak Output Current: 250 mA
Outputs with Fast Settling Time for Load Change
Output Pins Are Compatible with ADD8701
Single-Supply Operation: 7 V to 16 V
Supply Current: 15 mA Max
Mask Programmable Adjustable VCOM Buffer
Upper/Lower Outputs Swing to VDD/GND
Continuous Output Current: 10 mA
VCOM Peak Output Current: 250 mA
Outputs with Fast Settling Time for Load Change
Output Pins Are Compatible with ADD8701
Single-Supply Operation: 7 V to 16 V
Supply Current: 15 mA Max
ADD8702 Typical Application
TFT LCD Panels
ADD8702 Connection Diagram
ADD8702
PDF/DataSheet Download
- Datasheet: ADD8702
- File Size: 239573 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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