LF398N データシートの表示（PDF） - Philips Electronics
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LF398N Datasheet PDF : 5 Pages
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Philips Semiconductors Linear Products
Sample-and-hold amplifiers
Product specification
LF198/LF298/LF398
TYPICAL AC PERFORMANCE CHARACTERISTICS (Continued)
Dynamic Sampling Error
Output Droop Rate
100
330pF
10 0
10
330pF
±1
–10
1000pF
–100
0.1
1
10
100
INPUT SLEW RATE (V/ms)
1000
Phase And Gain
(Input to Output, Small-Signal)
5
80
Ch = 0
0
70
–5
Ch = 1000pF
60
–10
Ch ≥ 0.01µF
50
Ch = 1000pF
40
Ch = 0.01µF
30
Ch ≥ 0.01µF
1k
10k
100k
20
10
Ch = 0
0
1M
10M
FREQUENCY (Hz)
10–1
10–2
10–3
TJ =25°C
TJ =85°C
10–4
100pF 1000pF 0.01µF 0.1µF
1µF
HOLD CAPACITOR
Power Supply Rejection
160
TJ =25°C
140 V+ = V– = 15V
120
VOUT = 0°C
100
80
60
NEGATIVE
MODE
40
POSITIVE
MODE
20
0
100
1k
10k 100k
1M
FREQUENCY (Hz)
Feedthrough Rejection Ratio
(Hold Mode)
–130
V+ = V– = 15V
–120
–110
–100
Ch = 0.1µF
TJ =25°C
VIN = 10Vp-p
V7.8 = 0
–90
Ch = 0.01µF
–80
Ch = 1000pF
–70
–60
–50
10 100 100 1k 10k 100k 1M
FREQUENCY (Hz)
‘Hold’ Sampling Time
2
V+ = V– = 15V
1.8
SETTLING TIME
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
–50 –25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
Output Noise
160
140
120
100
‘HOLD’ MODE
80
60
40
SAMPLE
20 MODE
0
10
100
1k
10k
FREQUENCY (Hz)
100k
August 31, 1994
883
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