BUF08821 可编程伽马电压生成器和具有集成的 2 组存储器的 Vcom 校准器
The BUF08821 offers eight programmable gamma channels plus 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 BUF08821 supports up to 16 write operations to the on-chip memory.
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 supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3
| BUF08821 | |
| # Gamma Buffers | 9 |
| # Vcom Channels | 1 |
| Vs(Min)(V) | 9 |
| Vs(Max)(V) | 20 |
| Iq per channel(Typ)(mA) | 0.5 |
| Vcom-Output Current(Typ)(mA) | 100 |
| Gamma-Output Current(Typ)(mA) | 30 |
| Operating Temperature Range(C) | -40 to 85 |
| Pin/Package | 20HTSSOP |
BUF08821 特性
- 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
- I2C INTERFACE: Supports 400kHz and 3.4MHz Clock Frequency
- APPLICATIONS
- TFT-LCD REFERENCE DRIVERS
BUF08821 芯片订购指南
| 器件 | 状态 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| BUF08821AIPWPR | ACTIVE | 1.90 | 1ku | HTSSOP (PWP) | 20 | 2000 | LARGE T&R | |
| BUF08821AIPWPRG4 | ACTIVE | 1.90 | 1ku | HTSSOP (PWP) | 20 | 2000 | LARGE T&R |
BUF08821 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| BUF08821AIPWPR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | BUF08821AIPWPR | BUF08821AIPWPR |
| BUF08821AIPWPRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | BUF08821AIPWPRG4 | BUF08821AIPWPRG4 |
BUF08821 应用技术支持与电子电路设计开发资源下载
- BUF08821 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
BUF08821 工具与软件
| 名称 | 型号 | 工具/软件类型 |
| 音频的快速搜索选择工具 | AUDIO_SELECTION_TOOL | 免费评估工具 |
| BUF08821 评估模块 | BUF08821EVM | 开发电路板/EVM |
| 用于音频转换器的软件驱动程序 | CODECDRIVERS-SW | 应用软件 |