Datasheet Texas Instruments BUF08821BIPWPR — Datenblatt

BUF08821 BU
F 088 21 SBOS438D – AUGUST 2008 – REVISED JULY 2011 www.ti.com Programmable Gamma-Voltage Generator and
VCOM Calibrator with Integrated Two-Bank Memory
Check for Samples: BUF08821 FEATURES DESCRIPTION The BUF08821 offers eight programmable gamma
channels plus one programmable VCOM channel. 1 234 10-BIT RESOLUTION
8-CHANNEL P-GAMMA
1-CHANNEL P-VCOM
16x REWRITABLE NONVOLATILE MEMORY
TWO INDEPENDENT PIN-SELECTABLE
MEMORY BANKS
RAIL-TO-RAIL OUTPUT:
300mV Minimum Swing-to-Rail (10mA)
> 300mA Maximum IOUT
LOW SUPPLY CURRENT
SUPPLY VOLTAGE: 9V to 20V
DIGITAL SUPPLY: 2V to 5.5V
I2Cв„ў INTERFACE: Supports 400kHz and
3.4MHz Clock Frequency APPLICATIONS Digital
(2.0V to 5.5V) The BUF08821 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 …