- Input bias current (VCM= 1V）
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Maximum @ 25°C
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± 20 FA
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Max @ 85°C
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± 900 FA
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Offset voltage
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± 26μV
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Offset voltage drift
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-1.5μV/ ° C
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DC open-loop gain
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120 dB
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DC CMRR
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100 dB
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Input voltage noise (F = 1 kHz)
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6.5 NV / √ hertz
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Total harmonic distortion
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0.0007％
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Supply current
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1.3 mA
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GBW
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17 MHz
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Slew rate (falling edge)
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12.76 V/μs
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Supply voltage
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1.8V to 5.5V
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Operating temperature range
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-40°C to 125°C
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8-pin SOIC
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illustrate
The LMP7721 is the industry's lowest guaranteed input bias current precision amplifier. The ultra-low input bias current is 3 rounds, guaranteed to limit ± 20 FA to 25°C and ± 900 FA at 85°C. This is an amplifier circuit with patent-pending state-of-the-art input bias current cancellation. This technique also maintains ultra-low input bias current through the amplifier over the entire input common-mode voltage range.
Other outstanding features such as low voltage noise (6.5 NV / ), low DC offset voltage (± 150 μV maximum 25 °C) and low offset voltage temperature coefficient (-1.5 μV/°C) improve the sensitivity and accuracy of the application system with high precision. With a supply voltage range of 1.8V to 5.5V, the LMP7721 is ideal for battery-powered portable applications. The LMP7721 is part of the LMP family of high precision amplifiers.
As part of National Semiconductor's PowerWise offering, the LMP7721 offers a significantly wide gain bandwidth of 17 MHz products (GBW) while consuming only 1.3 mA. This 120 dB high open-loop gain GBW enables precise signal conditioning. With these specifications, the LMP7721 to Excel in electrochemical cell amplifiers and sensor interface circuits and other applications performance.
The LMP7721 is a special pinout that isolates the input and output pins of the power amplifier in an 8-pin SOIC package. With the right board layout technology, the unique LMP7721 pinout will reach the input pins to prevent PCB leakage current. As a result, system errors will be further reduced.
apply
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