LF398D データシートの表示（PDF） - Philips Electronics
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LF398D Datasheet PDF : 5 Pages
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Philips Semiconductors Linear Products
Sample-and-hold amplifiers
Product specification
LF198/LF298/LF398
TYPICAL DC PERFORMANCE CHARACTERISTICS
Input Bias Current
25
20
15
10
5
0
–5
–10
–15
–50 –25
0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
Output Short Circuit Current
20
18
16
14
SOURCING
12
10
8
SINKING
6
4
2
0
–50 –25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
Gain Error
1
0.8
TJ = 25°C
RL = 10k
0.6
SAMPLE MODE
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1
–15 –10 –5
0
5
10
15
INPUT VOLTAGE (V)
Hold Step
Leakage Current Into
Hold Capacitor
100
100
V+ = V– = 15V
TJ = 25°C
VS = ±15V
VOUT = 0
10
10
HOLD MODE
1
1
0.1
10–1
0.01
100pF 1000pF
0.01µF
0.1µF
HOLD CAPACITOR
10–2
1µF
–50 –25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
Hold Step Input Voltage
2
1.8
1.6
1.4
TJ = 100°C
1.2
1
TJ = 25°C
0.8
0.6
0.4
TJ = 55°C
0.2
0
–15 –10 –5
0
5
10
15
INPUT VOLTAGE (V)
TYPICAL AC PERFORMANCE CHARACTERISTICS
Acquisition Time
1
VIN = 0 TO ±10V
TJ = 25°C
1%
10
0.1%
0.01%
100
1000
0.001
0.01
0.1
HOLD CAPACITOR (µF)
Aperture Time
Capacitor Hysteresis
250
V+ = V– = 15V
225
∆VOUT ≤ 1mV
200
175
NEGATIVE
150
INPUT
STEP
125
100
75
50
25
0
–50 –25 0 25 50
∆VIN = 10V
POSITIVE
INPUT
STEP
75 100 125 150
JUNCTION TEMPERATURE (°C)
100
10
1
0.1
0.1
1
10
100
SAMPLE TIME (ms)
August 31, 1994
882
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