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Status

Active: In Production.

Description

FULL DATA SHEET (PDF, 252kB) Download   E-Mail The DS3508 is a programmable 8-channel gamma voltage generator with one byte of on-chip EEPROM and one byte of SRAM memory per channel. Each channel is composed of an independent 8-bit DAC with an associated EEPROM/SRAM pair. At power-up, nonvolatile (NV) EEPROM gamma data is loaded into its corresponding SRAM register that drives the associated 8-bit DAC. An on-chip control register allows selectable control of writing to SRAM/EEPROM or SRAM only. The DS3508 is designed for low-power operation and draws less than 2mA (typ) from the VDD supply. Programming occurs through an I²C-compatible serial interface with support for speeds up to 400kHz.

Key Features		Applications/Uses
8-Bit Gamma DACs, 8 Channels 1 Byte EEPROM and 1 Byte SRAM per Channel Ultra-Low Power (2mA IDD, typ) 400kbps I²C Interface 9.0V to 15.5V Analog Supply 2.7V to 5.5V Digital Supply 20-Pin TSSOP Package Address Pin Allows Two DS3508s to Reside on the Same I²C Bus		Industrial Controls TFT-LCD Gamma Buffer

Key Specifications:  Programmable Gamma Buffers

Part Number

Total Channels

Programmable Channels

Resolution (bits)

Integrated Nonvolatile Memory

VCOM Calibrator

VCOM Buffer

Interface

VSUPPLY (V)

IQ (mA)

Package/Pins

Smallest Available Pckg. (mm2)

Oper. Temp. (°C)

Price

max w/pins

See Notes

DS3508

8

8

8

Yes

No

No

I2C

9 to 15.5

4

TSSOP/20

45

-45 to +95

$0.90 @1k

See All Programmable Gamma Buffers (14)

Diagram

Typical Operating Circuit

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2008-03-31
This page last modified: 2009-07-31