LMP8645HV Series

-2 to 76V, 990kHz, configurable gain current sense amplifier

Catalog

-2 to 76V, 990kHz, configurable gain current sense amplifier

Part	Voltage - Supply Span (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Supply	Current - Output / Channel	-3db Bandwidth	Amplifier Type	Slew Rate	Mounting Type	Current - Input Bias	Voltage - Input Offset	Voltage - Supply Span (Max) [Max]	Supplier Device Package	Package / Case	Number of Circuits	Voltage - Supply, Single/Dual (±) [Max]	Voltage - Supply, Single/Dual (±) [Min]	Utilized IC / Part	Output Type	Current - Supply (Main IC)	Channels per IC	Supplied Contents	Board Type
Texas Instruments LMP8645MKE/NOPB	2.7 V	125 °C	-40 °C	2.2 mA	5 mA	860 kHz	Current Sense	0.6 V/µs	Surface Mount	13 µA	1.7 mV	12 V	SOT-23-THIN	SOT-23-6 Thin TSOT-23-6	1
Texas Instruments LMP8645HVMK/NOPB	2.7 V	125 °C	-40 °C	2.2 mA	5 mA	860 kHz	Current Sense	0.6 V/µs	Surface Mount	13 µA	1.7 mV	12 V	SOT-23-THIN	SOT-23-6 Thin TSOT-23-6	1
Texas Instruments LMP8645HVMKE/NOPB	2.7 V	125 °C	-40 °C	2.2 mA	5 mA	860 kHz	Current Sense	0.6 V/µs	Surface Mount	13 µA	1.7 mV	12 V	SOT-23-THIN	SOT-23-6 Thin TSOT-23-6	1
Texas Instruments LMP8645MKX/NOPB	2.7 V	125 °C	-40 °C	2.2 mA	5 mA	860 kHz	Current Sense	0.6 V/µs	Surface Mount	13 µA	1.7 mV	12 V	SOT-23-THIN	SOT-23-6 Thin TSOT-23-6	1
Texas Instruments LMP8645MKEVAL/NOPB					5 mA	860 kHz	Current Sense	0.6 V/µs								12 V	2.7 V	LMP8645	Differential	2.2 mA	1 - Single	Board(s)	Fully Populated
Texas Instruments LMP8645HVMKX/NOPB	2.7 V	125 °C	-40 °C	2.2 mA	5 mA	860 kHz	Current Sense	0.6 V/µs	Surface Mount	13 µA	1.7 mV	12 V	SOT-23-THIN	SOT-23-6 Thin TSOT-23-6	1

Catalog

-2 to 76V, 990kHz, configurable gain current sense amplifier

Key Features

• Typical Values, TA= 25°CHigh Common-Mode Voltage RangeLMP8645 –2 V to 42 VLMP8645HV –2 V to 76 VSupply Voltage Range 2.7 V to 12 VGain Configurable With a Single ResistorMaximum Variable Gain Accuracy (With External Resistor) 2%Transconductance 200 µA/VLow Offset Voltage 1 mVInput Bias 12 µAPSRR 90 dBCMRR 95 dBTemperature Range −40°C to 125°C6-Pin SOT PackageTypical Values, TA= 25°CHigh Common-Mode Voltage RangeLMP8645 –2 V to 42 VLMP8645HV –2 V to 76 VSupply Voltage Range 2.7 V to 12 VGain Configurable With a Single ResistorMaximum Variable Gain Accuracy (With External Resistor) 2%Transconductance 200 µA/VLow Offset Voltage 1 mVInput Bias 12 µAPSRR 90 dBCMRR 95 dBTemperature Range −40°C to 125°C6-Pin SOT Package

Description

The LMP8645 and the LMP8645HV devices are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high-input common-mode voltages. Operating from a supply range of 2.7 V to 12 V, the LMP8645 accepts input signals with a common-mode voltage range of –2 V to 42 V, while the LMP8645HV accepts input signals with a common-mode voltage range of –2 V to 76 V. The LMP8645 and LMP8645HV have adjustable gain for applications where supply current and high common-mode voltage are the determining factors. The gain is configured with a single resistor, providing a high level of flexibility, as well as accuracy as low as 2% (maximum) including the gain setting resistor. The output is buffered to provide low output impedance. This high-side current sense amplifier is ideal for sensing and monitoring currents in DC or battery-powered systems, has excellent AC and DC specifications over temperature, and keeps errors in the current sense loop to a minimum. The LMP8645 is an ideal choice for industrial, automotive, and consumer applications, and is available in SOT-6 package. The LMP8645 and the LMP8645HV devices are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high-input common-mode voltages. Operating from a supply range of 2.7 V to 12 V, the LMP8645 accepts input signals with a common-mode voltage range of –2 V to 42 V, while the LMP8645HV accepts input signals with a common-mode voltage range of –2 V to 76 V. The LMP8645 and LMP8645HV have adjustable gain for applications where supply current and high common-mode voltage are the determining factors. The gain is configured with a single resistor, providing a high level of flexibility, as well as accuracy as low as 2% (maximum) including the gain setting resistor. The output is buffered to provide low output impedance. This high-side current sense amplifier is ideal for sensing and monitoring currents in DC or battery-powered systems, has excellent AC and DC specifications over temperature, and keeps errors in the current sense loop to a minimum. The LMP8645 is an ideal choice for industrial, automotive, and consumer applications, and is available in SOT-6 package.