LT1999CS8-10 Linear Technology Corporation, LT1999CS8-10 Datasheet

LT1999CS8-10

Manufacturer Part Number

LT1999CS8-10

Description

Manufacturer

Linear Technology Corporation

Datasheet

1.LT1999CS8-10.pdf (24 pages)

Specifications of LT1999CS8-10

Case

SOP8

Date_code

09+

Available stocks

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Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT1999CS8-10

Manufacturer:

Quantity:

10 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT1999CS8-10#PBF

Manufacturer:

Linear Technology

Quantity:

135

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT1999CS8-10#PBF

Manufacturer:

Quantity:

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FeaTures

applicaTions

Typical applicaTion

Buffered Output with 3 Gain Options:

10V/V, 20V/V, 50V/V

Gain Accuracy: 0.5% Max

Input Common Mode Voltage Range: –5V to 80V

AC CMRR > 80dB at 100kHz

Input Offset Voltage: 1.5mV Max

–3dB Bandwidth: 2MHz

Smooth, Continuous Operation Over Entire Common

Mode Range

4kV HBM Tolerant and 1kV CDM Tolerant

Low Power Shutdown <10µA

–55°C to 150°C Operating Temperature Range

8-Lead MSOP and 8-Lead SO (Narrow) Packages

High Side or Low Side Current Sensing

H-Bridge Motor Control

Solenoid Current Sense

High Voltage Data Acquisition

PWM Control Loops

Fuse/MOSFET Monitoring

+IN

–IN

0.1µF

0.8k

–

LT1999

SHDN

–

1999 TA01a

160k

2µA

DescripTion

High Voltage, Bidirectional

The LT

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 minimiz-

ing power consumption.

The LT1999 is available in an 8-lead MSOP or SOP package.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

SHDN

OUT

REF

Current Sense Amplifier

1999 is a high speed precision current sense

0.1µF

LT1999-10/LT1999-20/

2.5V

Full Bridge Armature Current Monitor

TIME (10µs/DIV)

OUT

+IN

LT1999-50

1999 TA01b

1999fb

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