Analog Devices Inc. ADG5462F 用户定义故障保护四通道保护器
亚德诺半导体 ADG5462F 用户定义故障保护 & 检测 四通道保护器可 承受 −55V 至 +55V 的过压输入。 将 ADG5462F 通道保护器与信号路径串联，保护敏感器件 不受该路径上过压故障的影响。由于无论是否通电 ADG5462F 都能防止过压， 因此非常适合用于 无法确保电源时序始终正确的应用。主电源电压 决定导通电阻曲线，副电源电压 决定启动过压保护的电压电平。 ADG5462F 10Ω 的低导通电阻， 结合大部分信号范围内 0.5Ω 的导通电阻平坦度， 使 其 特别适合数据采集和增益开关 应用，在这些应用中出色的线性度和低失真性能至关重要。
The primary supply voltages define the on-resistance profile, while the secondary supply voltages define the voltage level at which the overvoltage protection engages. The low on-resistance of 10Ω of the ADG5462F channel protectors, combined with an on-resistance flatness of 0.5Ω over a significant portion of the signal range make the ADG5462F protectors ideal for data acquisition and gain switching applications where excellent linearity and low distortion are critical.
特性
- User-defined secondary supplies set overvoltage level
- Overvoltage protection up to −55V and 55V
- Power-off protection up to −55V and 55V
- Overvoltage detection on source pins
- Minimum secondary supply level: 4.5V single-supply
- Interrupt flag indicates fault status
- Low on-resistance: 10Ω typical
- On-resistance flatness of 0.5Ω maximum
- 4kV human body model (HBM) ESD rating
- Latch-up immune under any circumstance
- Known state without digital inputs present
- VSS to VDD analog signal range:
- ±5V to ±22V dual supply operation
- 8V to 44V single-supply operation
- Fully specified at ±15V, ±20V, +12V, and +36V
应用
- Analog input/output modules
- Process control/distributed control systems
- Data acquisition
- Instrumentation
- Avionics
- Automatic test equipment
- Communication systems
发布日期: 2015-07-16
| 更新日期: 2025-07-31