LT1021 datasheet(8/16 Pages) LINER

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LT1021

HARA TERISTICS

TYPICALPERFOR

Shunt Characteristics LT1021-10

Shunt Mode Current Limit

LT1021-10

Thermal Regulation LT1021-10

OUTPUT TO GROUND VOLTAGE (V)

0.2

0.6

0.8

1.0

1.8

1021 G28

0.4

1.2

1.4

1.6

TJ = – 55°C

TJ = 25°C

INPUT PIN OPEN

TJ = 125°C

OUTPUT VOLTAGE (V)

1021 G29

INPUT PIN OPEN

TIME (ms)

–1.0

– 0.5

140

1021 G30

–1.5

100

120

LOAD

REGULATION

THERMAL

REGULATION*

ILOAD = 10mA

*INDEPENDENT OF TEMPERATURE COEFFICIENT

VIN = 30V

∆POWER = 200mW

Load Transient Response

LT1021-10, CLOAD = 0

TIME (

µs)

1021 G31

024

ISOURCE = 2-10mA

ISOURCE = 0.2mA

ISINK = 0.6mA

ISINK = 0.8mA

ISINK = 1mA

ISINK = 2-10mA

10mV

50mV

∆ISINK = 100µAP-P

∆ISOURCE = 100µAP-P

ISOURCE = 0

NOTE VERTICAL SCALE CHANGE

BETWEEN SOURCING AND SINKING

Load Transient Response

LT1021-10, CLOAD = 1000pF

TIME (

µs)

1021 G32

024

ISOURCE = 2-10mA

ISOURCE = 0.5mA

ISINK = 0.8mA

ISINK = 1.2mA

ISINK = 1.4mA

ISINK = 2-10mA

5mV

20mV

∆ISINK = 100µAP-P

∆ISOURCE = 100µAP-P

ISOURCE = 0

NOTE VERTICAL SCALE CHANGE

BETWEEN SOURCING AND SINKING

Output Noise 0.1Hz to 10Hz

LT1021-10

TIME (MINUTES)

1021 G33

µV (1ppm)

FILTERING = 1 ZERO AT 0.1Hz

2 POLES AT 10Hz

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