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BUF08832

Texas Instruments
Part Number BUF08832
Manufacturer Texas Instruments
Description Programmable Gamma-Voltage Generator and High Slew Rate Vcom
Published Feb 25, 2020
Detailed Description BUF08832 BUF08832 www.ti.com SBOS476C – AUGUST 2009 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and High...
Datasheet PDF File BUF08832 PDF File

BUF08832
BUF08832

Overview
BUF08832 BUF08832 www.
ti.
com SBOS476C – AUGUST 2009 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and High Slew Rate VCOM with Integrated Two-Bank Memory Check for Samples: BUF08832 FEATURES 1 •23 10-BIT RESOLUTION • 8-CHANNEL P-GAMMA • 1-CHANNEL P-VCOM • HIGH SLEW RATE VCOM: 45V/μs • 16x REWRITABLE NONVOLATILE MEMORY • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS • RAIL-TO-RAIL OUTPUT – 300mV Min Swing-to-Rail (10mA) – > 300mA Max IOUT • LOW SUPPLY CURRENT • SUPPLY VOLTAGE: 9V to 20V • DIGITAL SUPPLY: 2V to 5.
5V • TWO-WIRE INTERFACE: Supports 400kHz and 3.
4MHz APPLICATIONS • TFT-LCD REFERENCE DRIVERS BKSEL Digital Analog (2.
0V to 5.
5V) (9V to 20V) BUF08832 1 OUT1 OUT2 OUT7 OUT8 DESCRIPTION The BUF08832 offers eight programmable gamma channels and one programmable VCOM channel.
The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory.
To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08832 supports up to 16 write operations to the on-chip memory.
The BUF08832 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.
All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load.
All channels are programmed using a Two-Wire interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.
4MHz.
The BUF08832 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process.
This process offers very dense logic and high supply voltage operation of up to 20V.
The BUF08832 is offered in a HTSSOP-20 PowerPAD™ package, and is specified from –40°C to +85°C.
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