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| 型號(hào)： | 508570A |
| 英文描述： | IC |
| 中文描述： | 集成電路 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | 508570A |
LT1027
3
SYMBOL
PARAMETER
Line Regulation (Note 4)
CONDITIONS
8V
≤
V
IN
≤
10V
MIN
TYP
6
MAX
12
25
6
8
6
8
50
100
2.7
3.1
UNITS
ppm/V
ppm/V
ppm/V
ppm/V
ppm/mA
ppm/mA
ppm/mA
ppm/mA
G
10V
≤
V
IN
≤
40V
3
G
Load Regulation (Notes 4, 6)
Sourcing Current
0
≤
I
OUT
≤
15mA
Sinking Current
0
≥
I
OUT
≥
–10mA
–8
–10
–3
G
30
G
Supply Current
2.2
mA
mA
mV
G
V
TRIM
Adjust Range
Output Noise (Note 5)
G
±
30
±
50
3
2.0
10
20
e
n
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
H package;
T = 25
°
C
H package
μ
V
P-P
μ
V
RMS
ppm
6.0
Temperature Hysteresis
Long Term Stability
ppm/month
Note 5:
RMS noise is measured with an 8-pole bandpass filter with a
center frequency of 30Hz and a Q of 1.5. The filter output is then rectified
and integrated for a fixed time period, resulting in an average, as opposed
to RMS voltage. A correction factor is used to convert average to RMS.
This value is then used to obtain RMS noise voltage in the 10Hz to 1000Hz
frequency band. This test also screens for low frequency "popcorn" noise
within the bandwidth of the filter. Consult factory for 100% 0.1Hz to 10Hz
noise testing.
Note 6:
Devices typically exhibit a slight negative DC output impedance of
–0.015
. This compensates for PC trace resistance, improving regulation
at the load.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the part may be impaired.
Note 2:
Output voltage is measured immediately after turn-on. Changes
due to chip warm-up are typically less than 0.005%.
Note 3:
Temperature coefficient is determined by the "box" method in
which the maximum
V
OUT
over the temperature range is divided by
T.
Note 4:
Line and load regulation measurements are done on a pulse basis.
Output voltage changes due to die temperature change must be taken into
account separately. Package thermal resistance is 150
°
C/W for TO-5 (H),
130
°
C/W for PDIP (N8), and 180
°
C/W for plastic SO (SO-8).
Ripple Rejection
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
FREQUENCY (Hz)
10
90
R
100
110
120
100
100
1k
10k
1027 G01
80
70
60
50
V
IN
= 10V
FREQUENCY (Hz)
0.01
O
)
0.1
1
10
100
10
10k
100k
1M
1027 G02
100
1k
I =
±
3mA AC
I
SOURCE
= 5mA
Output Impedance vs Frequency
Output Voltage
TEMPERATURE (
°
C)
–50
O
5.002
5.004
5.006
25
75
1027 G03
5.000
4.998
–25
0
50
100
4.996
4.994
ELECTRICAL C
temperature range otherwise specifications are at T
A
= 25
°
C. V
IN
= 10V, I
LOAD
= 0, unless otherwise specified.
HARA TERISTICS
The
G
denotes specifications which apply over the full operating
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