LPV511MG/NOPB National Semiconductor, LPV511MG/NOPB Datasheet - Page 12

• Manufacturer Part Number: LPV511MG/NOPB
• Description: IC OP AMP 880NA R-R SC70-5
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LPV511MG/NOPB

• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 0.0077 V/µs
• Gain Bandwidth Product: 25kHz
• Current - Input Bias: 320pA
• Voltage - Input Offset: 200µV
• Current - Supply: 1.2µA
• Current - Output / Channel: 1.3mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-5, SC-88A, SOT-323-5, SOT-353, 5-TSSOP
• Number Of Channels: 1
• Voltage Gain Db: 110 dB
• Common Mode Rejection Ratio (min): 80 dB
• Input Voltage Range (max): 12 V
• Input Voltage Range (min): 2.7 V
• Input Offset Voltage: 3 mV at 5 V
• Operating Supply Voltage: 3 V, 5 V, 9 V
• Supply Current: 0.0012 mA at 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Details
• Other names: LPV511MG; LPV511MGNOPB; LPV511MGNOPBTR; LPV511MGNOPBTR; LPV511MGTR

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Typical Applications
BATTERY CURRENT SENSING
The rail-to-rail common mode input range and the very low
quiescent current make the LPV511 ideal to use in high side
and low side battery current sensing applications. The high
side current sensing circuit in Figure 2 is commonly used in a
battery charger to monitor the charging current in order to
prevent over charging. A sense resistor R
to the battery directly.
FIGURE 2. High Side Current Sensing
SENSE
is connected
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SUMMING AMPLIFIER
The LPV511 operational amplifier is a perfect fit in a summing
amplifier circuit because of the rail-to-rail input and output and
the sub-micro Amp quiescent current. In this configuration,
the amplifier outputs the sum of the three input voltages.
The ratio of the sum and the output voltage is defined using
feedback and input resistors.
FIGURE 3. Summing Amplifier Circuit
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