LT1460JCS3-3-TRPBF datasheet(18/26 Pages) LINER

部件名	LT1460JCS3-3-TRPBF

功能描述	Micropower Precision Series Reference Family

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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LT1460

1460fc

Table 1. Maximum Output Capacitance for LT1460S3

VOLTAGE

OPTION

IOUT = 100µA IOUT = 1mA IOUT = 10mA IOUT = 20mA

2.5V

>10µF

2µF

0.68µF

3V

>10µF

2µF

0.68µF

3.3V

>10µF

1µF

0.68µF

5V

>10µF

1µF

0.68µF

10V

>10µF

1µF

0.15µF

0.1µF

Long-Term Drift

Long-termdriftcannotbeextrapolatedfromaccelerated

hightemperaturetesting.Thiserroneoustechniquegives

drift numbers that are wildly optimistic. The only way

long-term drift can be determined is to measure it over

the time interval of interest. The LT1460S3 long-term

drift data was taken on over 100 parts that were soldered

into PC boards similar to a “real world” application. The

boards were then placed into a constant temperature oven

with TA = 30°C, their outputs were scanned regularly and

measured with an 8.5 digit DVM. Figure 16 shows typical

long-term drift of the LT1460S3s.

Hysteresis

HysteresisdatashowninFigure17andFigure18represents

the worst-case data taken on parts from 0°C to 70°C and

from –40°C to 85°C. The device is capable of dissipating

relativelyhighpower,i.e.,fortheLT1460S3-2.5,PD=17.5V

• 20mA = 350mW. The thermal resistance of the SOT-23

package is 325°C/W and this dissipation causes a 114°C

internal rise producing a junction temperature of TJ=25°C

+ 114°C = 139°C. This elevated temperature will cause

the output to shift due to thermal hysteresis. For highest

performance in precision applications, do not let the

LT1460S3’s junction temperature exceed 85°C.

Figure 16. Typical Long-Term Drift

Figure 17. 0°C to 70°C Hysteresis

Figure 18. –40°C to 85°C Hysteresis

HOURS

–150

–50

50

150

–100

0

100

200

400

600

800

1460 F16

1000

100

0

300

500

700

900

HYSTERESIS (ppm)

–240

–160

–80

0

8

70°C TO 25°C

0°C TO 25°C

10

12

1460 F17

6

4

80

160

–200

–120

–40

40

120

200

2

0

18

16

14

240

WORST-CASE HYSTERESIS

ON 40 UNITS

HYSTERESIS (ppm)

–600

–400

–200

0

4

85°C TO 25°C

–40°C TO 25°C

5

6

1460 F18

3

2

200

400

–500

–300

–100

100

300

500

1

0

9

8

7

600

WORST-CASE HYSTERESIS

ON 34 UNITS

applications inForMation

类似零件编号 - LT1460JCS3-3-TRPBF

制造商	部件名	数据表	功能描述
Linear Technology	LT1460JCS3-3	197Kb / 12P	Family of Micropower Series References in SOT-23
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	LT1460JCS3-3.3	514Kb / 24P	Micropower Precision Series Reference Family

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