LT1460BIN8-5 Linear Technology, LT1460BIN8-5 Datasheet - Page 18
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LT1460BIN8-5
Manufacturer Part Number
LT1460BIN8-5
Description
IC PREC SERIES REF MICRPWR 8-DIP
Manufacturer
Linear Technology
Datasheet
1.LT1460EIS8-5.pdf
(26 pages)
Specifications of LT1460BIN8-5
Reference Type
Series
Voltage - Output
5V
Tolerance
±0.1%
Temperature Coefficient
10ppm/°C
Voltage - Input
5.9 ~ 20 V
Number Of Channels
1
Current - Quiescent
175µA
Current - Output
40mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Cathode
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1460BIN8-5
Manufacturer:
LT
Quantity:
79
applications inForMation
LT1460
Table 1. Maximum Output Capacitance for LT1460S3
Long-Term Drift
Long-term drift cannot be extrapolated from accelerated
high temperature testing. This erroneous technique gives
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 T
measured with an 8.5 digit DVM. Figure 16 shows typical
long-term drift of the LT1460S3s.
VOLTAGE
OPTION
2.5V
3.3V
10V
3V
5V
A
= 30°C, their outputs were scanned regularly and
–100
–150
I
150
100
–50
OUT
50
0
>10µF
>10µF
>10µF
>10µF
>10µF
Figure 16. Typical Long-Term Drift
0
= 100µA
100
200
300
I
OUT
400
>10µF
>10µF
>10µF
>10µF
1µF
HOURS
= 1mA
500
600
700
I
OUT
800
0.15µF
2µF
2µF
1µF
1µF
= 10mA I
900
1460 F16
1000
OUT
0.68µF
0.68µF
0.68µF
0.68µF
0.1µF
= 20mA
Hysteresis
Hysteresis data shown in Figure 17 and Figure 18 represents
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
relatively high power, i.e., for the LT1460S3-2.5, 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 T
+ 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.
12
10
18
16
14
6
8
6
4
0
9
8
7
5
4
3
2
0
2
1
–240
–600
WORST-CASE HYSTERESIS
ON 40 UNITS
WORST-CASE HYSTERESIS
ON 34 UNITS
–200
–500
Figure 18. –40°C to 85°C Hysteresis
–160
–400
Figure 17. 0°C to 70°C Hysteresis
85°C TO 25°C
–120
–300
70°C TO 25°C
–200
–80
HYSTERESIS (ppm)
HYSTERESIS (ppm)
–100
–40
0
0
100
40
0°C TO 25°C
–40°C TO 25°C
200
80
120
300
160
400
200
500
J
= 25°C
1460 F17
1460 F18
240
600
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