參數(shù)資料
型號(hào): LT1021
廠商: Linear Technology Corporation
英文描述: Precision Reference(精密電壓基準(zhǔn)(可調(diào):5V, 7V和10V))
中文描述: 精密參考(精密電壓基準(zhǔn)(可調(diào):5V的,7伏和10V時(shí)))
文件頁數(shù): 7/16頁
文件大?。?/td> 215K
代理商: LT1021
7
LT1021
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
Shunt Characteristics LT1021-7
Shunt Mode Current Limit
LT1021-7
Thermal Regulation LT1021-7
OUTPUT TO GROUND VOLTAGE (V)
0
0
C
0.2
0.6
0.8
1.0
2
4
5
9
1021 G19
0.4
1
3
6
7
8
1.2
INPUT PIN OPEN
T
J
= 125
°
C
T
J
= –55
°
C
T
J
= 25
°
C
OUTPUT VOLTAGE (V)
0
0
C
10
30
40
50
4
8
10
18
LT1021 G20
20
2
6
12
14
16
60
INPUT PIN OPEN
TIME (ms)
O
–1.0
–0.5
0
140
LT1021 G21
–1.5
20
60
100
0
40
80
120
LOAD
REGULATION
THERMAL
REGULATION*
I
LOAD
= 10mA
*INDEPENDENT OF TEMPERATURE COEFFICIENT
V
= 27V
POWER = 200mW
Load Regulation
LT1021-7, LT1021-10
TEMPERATURE (
°
C)
–50
9.994
9.996
O
10.000
10.006
0
50
75
LT1021 G25
9.998
10.004
10.002
–25
25
100
125
Output Voltage Temperature
Drift LT1021-10
OUTPUT CURRENT (mA)
–10
O
1
3
5
4
2
0
–2
–4
6
1021 G26
–1
–3
–5
–6
SOURCING
–8
–4
0
4
8
–2
2
10
V
IN
= 12V
SINKING
Input Supply Current LT1021-10
INPUT VOLTAGE (V)
0
0
I
0.2
0.6
0.8
1.0
35
30
1.8
1021 G27
0.4
5
10
15
20
25
40
1.2
1.4
1.6
T
J
= –55
°
C
T
J
= 25
°
C
T
J
= 125
°
C
I
OUT
= 0
Load Transient Response
LT1021-7, C
LOAD
= 0
TIME (
μ
s)
O
2
LT1021 G22
1
0
2
4
1
3
3
0
4
I
SOURCE
= 2-10mA
I
SOURCE
= 100
μ
A
P-P
I
SOURCE
= 0.5mA
I
SINK
= 0.8mA
I
SINK
= 1.2mA
I
SINK
= 1.4mA
I
SINK
= 2-10mA
I
SINK
= 100
μ
A
P-P
5mV
50mV
I
SOURCE
= 0
NOTE VERTICAL SCALE CHANGE
BETWEEN SOURCING AND SINKING
Load Transient Response
LT1021-7, C
LOAD
= 1000pF
Output Noise 0.1Hz to 10Hz
LT1021-7
5
μ
s/DIV
O
10
LT1021 G23
5
0
10
20
5
15
15
0
20
I
SOURCE
= 2-10mA
I
SOURCE
= 100
μ
A
P-P
I
SOURCE
= 0.5mA
I
SINK
= 0.6mA
I
SINK
= 0.8mA
I
SINK
= 1mA
I
SINK
= 2-10mA
I
SINK
= 100
μ
A
P-P
5mV
20mV
I
SOURCE
= 0
NOTE VERTICAL SCALE CHANGE
BETWEEN SOURCING AND SINKING
TIME (MINUTES)
0
3
5
LT1021 G24
1
2
4
6
O
μ
V
5
μ
V (0.7ppm)
FILTERING = 1 ZERO AT 0.1Hz
2 POLES AT 10Hz
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