LT1787 Series

Precision, High Side Current Sense Amplifiers

Catalog

Precision, High Side Current Sense Amplifiers

Part	Supplier Device Package	Mounting Type	Current - Supply	Package / Case	Package / Case [custom]	Package / Case	Amplifier Type	Voltage - Input Offset	Voltage - Supply Span (Max) [Max]	Voltage - Supply Span (Min) [Min]	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Number of Circuits	Package / Case [y]	Package / Case [x]
Analog Devices LT1787CMS8#PBF	8-MSOP	Surface Mount	60 µA	8-MSOP 8-TSSOP	0.118 in	3 mm	Current Sense	40 µV	36 V	2.5 V	50 µA	70 °C	0 °C	1
Analog Devices LT1787IMS8#PBF	8-MSOP	Surface Mount	60 µA	8-MSOP 8-TSSOP	0.118 in	3 mm	Current Sense	40 µV	36 V	2.5 V	50 µA	85 °C	-40 °C	1
Analog Devices LT1787HS8#TRPBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV	36 V	2.5 V	50 µA	125 °C	-40 °C	1	3.9 mm	0.154 in
Analog Devices LT1787HVIS8#PBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV		2.5 V	50 µA	85 °C	-40 °C	1	3.9 mm	0.154 in
Analog Devices LT1787HVHS8#PBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV		2.5 V		125 °C	-40 °C	1	3.9 mm	0.154 in
Analog Devices LT1787HVIMS8#TRPBF	8-MSOP	Surface Mount	60 µA	8-MSOP 8-TSSOP	0.118 in	3 mm	Current Sense	40 µV		2.5 V	50 µA	85 °C	-40 °C	1
Analog Devices LT1787HVCS8#TRPBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV		2.5 V	50 µA	70 °C	0 °C	1	3.9 mm	0.154 in
Analog Devices LT1787HS8#PBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV	36 V	2.5 V		125 °C	-40 °C	1	3.9 mm	0.154 in
Analog Devices LT1787HVCMS8#PBF	8-MSOP	Surface Mount	60 µA	8-MSOP 8-TSSOP	0.118 in	3 mm	Current Sense	40 µV		2.5 V	50 µA	70 °C	0 °C	1
Analog Devices LT1787CS8#TRPBF	8-SO	Surface Mount	60 µA	8-SOIC			Current Sense	40 µV	36 V	2.5 V	50 µA	125 °C	-40 °C	1	3.9 mm	0.154 in

Catalog

Precision, High Side Current Sense Amplifiers

Key Features

• Input Offset Voltage: 75µV (Max)

• 60V Supply Operation (LT1787HV)

• 12-Bit Dynamic Range

• Operating Current: 60µA

• User-Selectable External Sense Resistor

• Bidirectional High Side Current Sensing

• Unidirectional or Bidirectional Output

• Input Noise Filtering

• Available in 8-Lead SO and MSOP Packages

• –40°C to 125°C Operating Temperature Range

Description

The LT1787 is a complete micropower precision high side current sense amplifier. The LT1787 monitors bidirectional currents via the voltage across an external sense resistor. A current or voltage output indicates the direction and magnitude of the sense current. The LT1787 delivers greater than a 12-bit dynamic range with ultralow 40µV input offset voltage compared to a typical 250mV full-scale input voltage. A fixed gain of 8 is set by onboard precision resistors. Input signal filtering is easily implemented with a capacitor between the FIL–and FIL+pins. The LT1787HV operates from 2.5V to 60V total supply voltage and the LT1787 operates from 2.5V to 36V total supply voltage. Both versions have a PSRR in excess of 120dB. The LT1787/LT1787HV draw only 60µA and are available in 8-lead SO and MSOP packages.ApplicationsBattery MonitoringPower MonitoringPortable PhonesCellular PhonesPortable Test/Measurement SystemsBattery-Operated Systems