BCD半导体发布新型低电压型运算放大器AZV321

    日前，BCD半导体（BCD Semiconductor Manufacturing Limited）宣布推出一款低电压运算放大器AZV321，AZV321是一款单路微功耗轨至轨输入/输出运算放大器。超宽的电源电压范围可以满足低电压应用的各种需求。这一放大器具有优秀的快速功率比, 在低电压电流时可达到1MHz的带宽和 1V/µs 的上升速率。AZV321放大器的设计可以完全满足要向更低电源电压迁移的高速设计方案需求，它适用于主动式滤波器，低功率, 低电压应用，通用手持设备，蜂窝电话, 无绳电话以及电池供电系统。 

    AZV321 采用 先进的BiCMOS 工艺制造。它有双极输入输出级, 改善了噪声性能, 实现了低输入失调和更高的输出电流驱动。它也允许设计师把器件放在更接近信号源的地方, 减少噪声拾取并增加信号的完整性。

此外它还具有以下特点：

工作电压2.7V 到 5.5V ；
无交越失真 ；
增益带宽积 1MHz；
低电源电流：130µA；
在 10kΩ负载下的轨至轨输出摆幅；
VOH 最高到 VCC - 10mV； VOL 接近 VEE +65mV；VCM：- 0.2V 到 VCC-0.8V

    AZV321适用于-40°C 到 85°C 的工业温度范围，不但提供标准的SOT-23-5封装, 还提供大小只有SOT-23-5封装的一半的 SC70-5封装。小封装可以节省印刷电路板的空间, 从而可用于手持式便携电子设备的设计。

附：原文

BCD Semi (BCD Semiconductor Manufacturing Limited) has recently announced a new low voltage operational amplifier AZV321. AZV321 is a single supply low voltage (2.7-5.5V) op amp which has the rail-to-rail output swing capability and a wide common-mode input voltage range down to ground. The chip exhibits excellent speed-power ratio, achieving 1MHz bandwidth and 1V/µs slew rate with low supply current. AZV321 is most suitable for low power, low voltage applications, such as battery powered portable device, MP3/4 player, cellular phone, and cordless phone.

The AZV321 is built with BiCMOS process. It has bipolar input and output stages for improved noise performance, low input offset and higher output current drive.

Features:
（For VCC=5V and VEE=0V, Typical unless Otherwise Noted）
• Guaranteed 2.7V to 5.5V Performance.
• No Crossover Distortion
• Gain-Bandwidth Product 1MHz
• Industrial Temperature Range: -40℃ to +85℃
• Low Supply Current: 130µA
• Rail-to-Rail Output Swing under 10kΩ Load:
VOH up to VCC -10mV
VOL near to VEE +65mV
• VCM: -0.2V to VCC-0.8V

AZV321 is available in standard SOT-23-5 package as well as SC70-5 package. The SC70-5 package is approximately half the size of SOT-23-5. The small package saves space on PCBs, and enables the design of small portable electronic devices. It also allows the designer to place the device closer to the signal source to reduce noise pickup and increase signal integrity.