Datasheet Texas Instruments BUF16821BIPWPR — 数据表

BUF16821 BU F16 821 SBOS428C – JULY 2008 – REVISED JULY 2011 www.ti.com Programmable Gamma-Voltage Generator and
VCOM Calibrator with Integrated Two-Bank Memory
Check for Samples: BUF16821 FEATURES DESCRIPTION The BUF16821 offers 16 programmable gamma
channels and two programmable VCOM channels. 1 234 10-BIT RESOLUTION
16-CHANNEL P-GAMMA
2-CHANNEL P-VCOM
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
I2Cв„ў INTERFACE: Supports 400kHz and
3.4MHz APPLICATIONS Digital
(2.0V to 5.5V) The BUF16821 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 …