Analog Devices / Maxim Integrated MAX6138 带隙电压基准
Maxim MAX6138 并联电压基准是精密的、两接头并联模式、带隙电压基准，提供固定的反向击穿电压：1.2205V、2.048V、2.5V、3.0V、3.3V、4.096V 和 5.0V。MAX6138 采用微型、3引脚 SC70 表贴封装(1.8mm x 1.8mm)，与采用 SOT23 封装的表贴器件相比可节省 50% 的空间，特别适合空间受限的应用。激光微调电阻保证精确的初始精度。MAX6138 的温度系数为 25ppm/°C，提供从 0.1% 至 0.5% 的三个等级的初始精度。MAX6138 可提供 60µA 至 15mA 的并联电流，具有极低的动态阻抗，在较宽的工作温度和电流范围内保证稳定的反向击穿电压精度。MAX6138 无需外部稳定电容，同时确保搭配容性负载稳定工作。
Ideal for space-critical applications, the MAX6138 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount packages. Laser-trimmed resistors ensure precise initial accuracy. With a 25ppm/°C temperature coefficient, the device is offered in three grades of initial accuracy ranging from 0.1% to 0.5%.
The MAX6138 features a 60µA to 15mA shunt-current capability with low-dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. The MAX6138 does not require an external stabilizing capacitor while ensuring stability with capacitive loads.
特性
- Ultra-small 3-Pin SC70 package
- 0.1% (max) initial accuracy
- 25ppm/°C (max) Temperature coefficient guaranteed over -40°C to +85°C temperature range
- 60µA to 15mA Wide operating current range
- Low 28µVRMS output noise (10Hz to 10kHz)
- 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V Fixed reverse breakdown voltages
- No output capacitors required
- Stable with capacitive loads
应用
- Cell phones
- Industrial process controls
- Notebook computers
- Portable battery-powered equipment
Block Diagram
发布日期: 2014-08-06
| 更新日期: 2023-04-12