LT1999IS8-50#PBF

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Analog Devices

SP AMP CURRENT SENSE AMP SINGLE 5.5V 8-PIN SOIC N TUBE

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LT1999IS8-50#PBF

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Analog Devices

SP AMP CURRENT SENSE AMP SINGLE 5.5V 8-PIN SOIC N TUBE

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DocumentsDatasheet R515 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1999IS8-50#PBF

-3db Bandwidth	1.2 MHz
Amplifier Type	Current Sense
Current - Input Bias	137.5 µA
Current - Supply	5.8 mA
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Slew Rate	3 V/µs
Supplier Device Package	8-SO
Voltage - Input Offset	500 çV
Voltage - Supply Span (Max) [Max]	5.5 V
Voltage - Supply Span (Min) [Min]	4.5 V

LT1999 Series

High Voltage, Bidirectional Current Sense Amplifier

Part	Current - Supply	-3db Bandwidth	Voltage - Supply Span (Max) [Max]	Slew Rate	Amplifier Type	Current - Input Bias	Voltage - Input Offset	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Package / Case [custom]	Package / Case	Voltage - Supply Span (Min) [Min]	Number of Circuits	Supplier Device Package	Current - Output / Channel [custom]	Current - Output / Channel	Package / Case [y]	Package / Case [x]
Analog Devices LT1999IMS8-10#PBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	85 °C	-40 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP
Analog Devices LT1999MPMS8-10F#TRPBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	150 °C	-55 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP	40 mA
Analog Devices LT1999HMS8-50F#PBF	5.8 mA	1.2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	125 °C	-40 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP	40 mA
Analog Devices LT1999HMS8-20F#WPBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	125 °C	-40 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP		31 mA
Analog Devices LT1999IS8-50#PBF	5.8 mA	1.2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	85 °C	-40 °C	Surface Mount	8-SOIC			4.5 V	1	8-SO			3.9 mm	0.154 in
Analog Devices LT1999HMS8-10F#WTRPBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	125 °C	-40 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP		31 mA
Analog Devices LT1999CMS8-20F#PBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	70 °C	0 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP	40 mA
Analog Devices LT1999MPMS8-20#PBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	150 °C	-55 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP
Analog Devices LT1999HMS8-10F#TRPBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	125 °C	-40 °C	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	4.5 V	1	8-MSOP	40 mA
Analog Devices LT1999CS8-20#PBF	5.8 mA	2 MHz	5.5 V	3 V/µs	Current Sense	137.5 µA	500 çV	70 °C	0 °C	Surface Mount	8-SOIC			4.5 V	1	8-SO			3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 8.07
		10	$ 5.54
		25	$ 4.88
		100	$ 4.15
		250	$ 3.79
		500	$ 3.57
		1000	$ 3.39
		2500	$ 3.25

Description

General part information

LT1999 Series

The LT1999 is a high speed precision current sense amplifier, designed to monitor bidirectional currents over a wide common mode range. The LT1999 is offered in three gain options: 10V/V, 20V/V, and 50V/V.The LT1999 senses current via an external resistive shunt and generates an output voltage, indicating both magnitude and direction of the sensed current. The output voltage is referenced halfway between the supply voltage and ground, or an external voltage can be used to set the reference level. With a 2MHz bandwidth and a common mode input range of –5V to 80V, the LT1999 is suitable for monitoring currents in H-Bridge motor controls, switching power supplies, solenoid currents, and battery charge currents from full charge to depletion.The LT1999 operates from an independent 5V supply and draws 1.55mA. A shutdown mode is provided for minimizing power consumption.The LT1999 is available in an 8-lead SOP, an 8-lead MSOP (original pinout), or an 8-lead pinout option engineered for FMEA.ApplicationsHigh Side or Low Side Current SensingH-Bridge Motor ControlSolenoid Current SenseHigh Voltage Data AcquisitionPWM Control LoopsFuse/MOSFET Monitoring