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参数资料
| 型号： | LT1027ECS8#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, SOIC-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 210K |
| 代理商： | LT1027ECS8#PBF |
LT1027
3
sn1027 1027fcs
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Line Regulation (Note 4)
8V
≤ VIN ≤ 10V
6
12
ppm/V
q
25
ppm/V
10V
≤ VIN ≤ 40V
3
6
ppm/V
q
8
ppm/V
Load Regulation (Notes 4, 6)
Sourcing Current
–8
–3
6
ppm/mA
0
≤ IOUT ≤ 15mA
q
–10
8
ppm/mA
Sinking Current
q
30
120
ppm/mA
0
≥ IOUT ≥ –10mA
Supply Current
2.2
3.1
mA
q
3.5
mA
VTRIM Adjust Range
q
±30
±50
mV
en
Output Noise (Note 5)
0.1Hz
≤ f ≤ 10Hz
3
VP-P
10Hz
≤ f ≤ 1kHz
2.0
6.0
VRMS
Temperature Hysteresis
H package;
T = 25°C
10
ppm
Long Term Stability
H package
20
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
VOUT 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
CC
HARA TERISTICS
UW
A
TYPICALPERFOR
CE
FREQUENCY (Hz)
10
90
REJECTION
(dB)
100
110
120
100
1k
10k
1027 G01
80
70
60
50
VIN = 10V
FREQUENCY (Hz)
0.01
OUTPUT
IMPEDANCE
(
)
0.1
1
10
100
10
10k
100k
1M
1027 G02
100
1k
I = ±3mA AC
ISOURCE = 5mA
Output Impedance vs Frequency
Output Voltage
TEMPERATURE (
°C)
–50
OUTPUT
VOLTAGE
(V) 5.002
5.004
5.006
25
75
1027 G03
5.000
4.998
–25
0
50
100
4.996
4.994
ELECTRICAL C
C
HARA TERISTICS The q denotes specifications which apply over the full operating
temperature range otherwise specifications are at TA = 25°C. VIN = 10V, ILOAD = 0, unless otherwise specified.
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