AD8644: 18 V Operational Amplifier (Quad)
AD8614(单路)和AD8644(四路)均为单电源、5.5 MHz带宽、轨到轨放大器,并针对LCD监视器应用进行了优化。
这些器件都采用ADI公司的高压超快速互补双极性(HV-XFCB)工艺制造。此项专有工艺含有槽隔离晶体管,用来降低内部寄生电容,从而可改善增益带宽、相位余量和容性负载驱动。每个放大器的电源电流较低,仅800 uA(典型值),这对便携式或高密度集成设计至关重要。此外,与标准视频放大器相比,轨到轨输出摆幅能够提供更大的动态范围和控制能力。
这些产品均采用5 V至18 V电源供电。70 mA输出驱动电流、高压摆率和高容性驱动能力结合的独特优势,使AD8614/AD8644成为LCD应用的理想之选。
AD8614和AD8644的额定温度范围为–20° C至+85° C,提供5引脚SOT-23、14引脚TSSOP和14引脚SOIC表面贴装三种封装,且采用卷带和卷盘形式
The AD8614 (single) and AD8644 (quad) are single-supply, 5.5 MHz bandwidth, rail-to-rail amplifiers optimized for LCD monitor applications.
They are processed using the Analog Devices, Inc. high voltage, extra fast complementary bipolar (HV XFCB) process. This proprietary process includes trench-isolated transistors that lower internal parasitic capacitance, which improves gain bandwidth, phase margin, and capacitive load drive. The low supply current of 800 μA (typical) per amplifier is critical for portable or densely packed designs. In addition, the rail-to-rail output swing provides greater dynamic range and control than standard video amplifiers provide.
These products operate from supplies of 5 V to as high as 18 V. The unique combination of an output drive of 70 mA, high slew rates, and high capacitive drive capability makes the AD8614/AD8644 an ideal choice for LCD applications.
The AD8614 and AD8644 are specified over the temperature range of –20°C to +85°C. They are available in 5-lead SOT-23, 14-lead TSSOP, and 14-lead SOIC surface-mount packages in tape and reel.
产品应用领域 Applications
- LCD伽马和VCOM驱动器
- 调制解调器
- 便携式仪器仪表
- 直接存取装置
- LCD gamma and VCOM drivers
- Modems
- Portable instrumentation
- Direct access arrangement
AD8644 特点
- 单位增益带宽：5.5 MHz
- 低失调电压：1.0 mV
- 压摆率：7.5 V/ us
- 单电源供电：5 V至18 V
- 高输出电流：70 mA
- 低电源电流：每个放大器800 uA
- 能稳定驱动较大容性负载
- 轨到轨输入和输出
- Unity-gain bandwidth: 5.5 MHz
- Low voltage offset: 1.0 mV
- Slew rate: 7.5 V/μs
- Single-supply operation: 5 V to 18 V
- High output current: 70 mA
- Low supply current: 800 μA/amplifier
- Stable with large capacitive loads
- Rail-to-rail inputs and outputs
AD8644 功能框图
AD8644 技术指标
| -3dB Bandwidth | 5.5MHz | Vcc-Vee Supply (V) | 5 to 18 |
| Slew Rate | 7.5V/us | Iq per Amplifier | 1.1mA |
| Vos | 1mV | # OpAmps per Pkg | 4 |
| Ib | 80nA | Operating Temp Range | -25 to +85 |
| Input Noise (nV/rtHz) | 12nV/rtHz | Packages | SOIC,SOP |
AD8644 订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD8644AR-R2 | 量产 | 14 ld SOIC | 14 | 工业 |
| AD8644AR-REEL | 量产 | 14 ld SOIC | 14 | 工业 |
| AD8644AR-REEL7 | 量产 | 14 ld SOIC | 14 | 工业 |
| AD8644ARU | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD8644ARU-REEL | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD8644ARUZ | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD8644ARUZ-REEL | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD8644ARZ | 量产 | 14 ld SOIC | 14 | 工业 |
| AD8644ARZ-REEL | 量产 | 14 ld SOIC | 14 | 工业 |
| AD8644ARZ-REEL7 | 量产 | 14 ld SOIC | 14 | 工业 |
EVAL-PRAOPAMP: Universal Precision Op Amp Evaluation Board
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| EVAL-PRAOPAMP-1KSZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-1RJZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-1RMZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-1RZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-2RMZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-2RZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-4RUZ | 量产 | 评估板 | 商业 | |
| EVAL-PRAOPAMP-4RZ | 量产 | 评估板 | 商业 |