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Features
Typical Values, TA = 25°C
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Input offset voltage
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±2 mV max
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TCVos
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±30 μV/°C max
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CMRR
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80 dB min
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Output voltage swing
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Rail-to-rail
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Bandwidth
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80 kHz
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Operating temperature range (ambient)
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−40°C to 125°C
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Supply voltage
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4.75V to 5.5V
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Supply current
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1 mA
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Description The LMP8277 is a fixed gain differential amplifier with a
−2V to 16V input common mode voltage range and a supply voltage range of 4.75V to 5.5V. The LMP8277 is part of the LMP precision amplifier family which will detect, amplify and filter small differential signals in the presence of high common
mode voltages. The gain is fixed at 14 and is adequate to drive an ADC to full scale in most cases. This fixed gain is achieved
in two separate stages, a preamplifier with gain of +7 and a second stage amplifier with a gain of +2. The internal signal
path between these two stages is brought out on two pins that provide a connection for a filter network.
The LMP8277 will function over an extended common mode input voltage range making the device suitable for applications with
load dump events such as automotive systems.
Applications
Fuel injection control
High and low side driver configuration current sensing
Power management systems
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Also Recommended
| LMP8272▲ | LMP8272 - High Common Mode, Gain Of 14, Precision Voltage Difference Amplifier |
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