精密Picoampere输入电流四路运算放大器 Precision Picoampere Input Current Quad Operational Amplifier
Product Details
The OP497 is a quad op amp with precision performance in the space-saving, industry standard 16-lead SOlC package. Its combination of exceptional precision with low power and extremely low input bias current makes the quad OP497 useful in a wide variety of applications.
Precision performance of the OP497 includes very low offset <50 μV and low drift <0.5 μV/°C. Open-loop gain exceeds 2000 V/mV ensuring high linearity in every application. Errors due to common-mode signals are eliminated by its common-mode rejection of >120 dB. The OP497 has a power supply rejection of >120 dB which minimizes offset voltage changes experienced in battery-powered systems. The supply current of the OP497 is <625 μA per amplifier, and it can operate with supply voltages as low as ±2 V
The OP497 uses a superbeta input stage with bias current cancellation to maintain picoamp bias currents at all temperatures. This is in contrast to FET input op amps whose bias currents start in the picoamp range at 25°C but double for every 10°C rise in temperature to reach the nanoamp range above 85°C. The input bias current of the OP497 is <100 pA at 25°C.
Combining precision, low power, and low bias current, the OP497 is ideal for a number of applications, including instrumentation amplifiers, log amplifiers, photodiode preamplifiers, and long-term integrators. For a single device, see the OP97 data sheet, and for a dual device, see the OP297 data sheet.
### Features and Benefits
通道数 4
耗散功率 800 mW
共模抑制比 114 dB
增益频宽积 0.5 MHz
输入补偿电压 0.075 mV
工作温度Max 125 ℃
工作温度Min -55 ℃
耗散功率Max 800 mW
共模抑制比Min 114 dB
安装方式 Surface Mount
引脚数 20
封装 LCC-20
长度 9.09 mm
宽度 9.09 mm
高度 2.54 mm
封装 LCC-20
工作温度 -55℃ ~ 125℃
产品生命周期 Active
包装方式 Tube
RoHS标准 Non-Compliant
含铅标准 Contains Lead
香港进出口证 NLR