INA118
精密低功耗仪表放大器
The is a low-power, general-purpose instrumentation amplifier offering excellent accuracy. The devices versatile, 3-op amp design and small size make it ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth, even at high gain 70 kHz at G = 100.
A single external resistor sets any gain from 1 to 10000. Internal input protection can withstand up to ±40 V without damage.
The INA118 is laser-trimmed for low offset voltage 50 µV, drift 0.5 µV/°C, and high common-mode rejection 110 dB at G = 1000. The INA118 operates with power supplies as low as ±1.35 V, and quiescent current is only 350 µA, making the device ideal for battery-operated systems.
The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, specified for the 40°C to +85°C temperature range.
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- Low Offset Voltage: 50-µV Maximum
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- Low Drift: 0.5-µV/°C Maximum
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- Low Input Bias Current: 5-nA Maximum
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- High CMR: 110-dB Minimum
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- Inputs Protected to ±40 V
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- Wide Supply Range: ±1.35 to ±18 V
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- Low Quiescent Current: 350-µA
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- 8-Pin Plastic DIP, SO-8
