AD8504ARUZ: 1 µA微功耗CMOS运算放大器TSSOP-14封装
The AD8502/AD8504 are low power, precision CMOS operational amplifiers featuring a maximum supply current of 1 μA per amplifier. The AD8502/AD8504 have a maximum offset voltage of 3 mV and a typical input bias current of 1 pA operating rail-to-rail on both the input and output. The AD8502/AD8504 can operate from a single-supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V.
With its low power consumption, low input bias current, and rail-to-rail input and output, the AD8502/AD8504 are ideally suited for a variety of battery-powered portable applications. Potential applications include bedside monitors, pulse monitors, glucose meters, smoke and fire detectors, vibration monitors, and backup battery sensors.
The ability to swing rail-to-rail at both the input and output helps maximize dynamic range and signal-to-noise ratio in systems that operate at very low voltages. The low offset voltage allows use of the AD8502/AD8504 in systems with high gain without creating excessively large output offset errors. The AD8502 and AD8504 offer an additional benefit by providing high accuracy without the need for system calibration.
The AD8502/AD8504 are fully specified over the industrial temperature range (−40°C to +85°C) and the extended industrial temperature range (−40°C to +125°C). The AD8502 is available in an 8-lead, SOT-23 surface-mount package. The AD8504 is available in a 14-lead TSSOP surface-mount package.
AD8502/AD8504均为低功耗、精密CMOS运算放大器,最大电源电流仅1 µA。二者的最大失调电压为3 mV,典型输入偏置电流为1 pA,输入和输出均以轨到轨方式工作,可采用+1.8 V至+5.5 V单电源或±0.9 V至±2.75 V双电源供电。
AD8502/AD8504具有低功耗、低输入偏置电流以及轨到轨输入和输出特性,特别适合各种电池供电的便携式应用。潜在应用包括床边监护仪、脉冲监控器、血糖仪、烟火探测器、振动监测仪和备用电池传感器。
此外还具有轨到轨输入和输出摆幅能力,有助于采用极低电压工作的系统达到最大的动态范围和信噪比。AD8502/AD8504具有低失调电压,因此可以用在高增益系统中,且不会产生过大的输出失调误差,并且无需进行系统校准也能提供高精度操作。
AD8502/AD8504的额定温度范围分别为−40°C至+85°C工业温度范围和−40°C至+125°C扩展工业温度范围。AD8502采用8引脚SOT-23表面贴装封装,AD8504则采用14引脚TSSOP表面贴装封装。
产品应用领域 Applications
- Portable equipment
- Remote sensors
- Low power filters
- Threshold detectors
- Current sensing
- 便携式设备
- 远程传感器
- 低功耗滤波器
- 阈值检测器
- 电流检测
AD8504ARUZ 特点
- Supply current: 1 μA maximum/amplifier
- Offset voltage: 3 mV maximum
- Single-supply or dual-supply operation
- Rail-to-rail input and output
- No phase reversal
- Unity gain stable
- 电源电流：每个放大器1 µA(最大值)
- 失调电压：3 mV(最大值)
- 单电源或双电源供电
- 轨到轨输入和输出
- 无反相
- 单位增益稳定
AD8504ARUZ 功能框图
AD8504ARUZ 技术指标
| -3dB Bandwidth | 7kHz | Vcc-Vee Supply (V) | 1.8 to 5.5 |
| Slew Rate | 0.0040V/µs | Iq per Amplifier | 1µA |
| Vos | 500µV | # OpAmps per Pkg | 4 |
| Ib | 1pA | Operating Temp Range | -40 to +125 |
| Input Noise (nV/rtHz) | 190nV/rtHz | Packages | SOP |
AD8504 订购指南
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD8504ARUZ | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD8504ARUZ-REEL | 量产 | 14 ld TSSOP | 14 | 工业 |
