LT1678IS8 Просмотр технического описания (PDF) - Linear Technology
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LT1678IS8 Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1678/LT1679
Common Mode Range vs
Temperature
5
500
VS = ±2.5V TO ±15V
4
400
3
300
2
25°C
200
1
–55°C
100
0 125°C
–1
25°C
–55°C
0
–100
–2
VOS IS REFERRED TO
VCM = 0V
–3
125°C
–4
–200
–300
–400
–5
–1.0
V–
1.0
2.0
VCM – VS– (V)
–0.8 –0.4 V– 0.4
VCM – VS+ (V)
–500
16789 G09
Supply Current vs Supply Voltage
4.0
3.5
3.0
TA = 125°C
2.5
TA = 25°C
2.0
TA = –55°C
1.5
1.0
0
±5
±10
±15
SUPPLY VOLTAGE (V)
±20
16789 G14
Common Mode Rejection Ratio
vs Frequency
160
VS = ±15V
140 TA = 25°C
VCM = 0V
120
100
80
60
40
20
0
10k
100k
1M
FREQUENCY (Hz)
10M
16789 G15
Power Supply Rejection Ratio
vs Frequency
160
VS = ±15V
140 TA = 25°C
120
100
NEGATIVE SUPPLY
80
60
POSITIVE SUPPLY
40
20
0
0.001 0.01
0.1 1 10
FREQUENCY (kHz)
100 1000
16789 G16
Phase Margin, Gain Bandwidth
Product and Slew Rate vs
Temperature
90
80
PHASE MARGIN
70
60
VS = ±15V
CL = 15pF
AV = –1
RF = RG = 1k
30
50
25
GAIN BANDWIDTH PRODUCT
40
20
8
15
10
+SR
6
–SR
4
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
16789 G19
Voltage Gain vs Supply Voltage
10
RL = 10k
RL = 2k
1
0.1
0
TA = 25°C
RL TO GND
VCM = VO = VS/2
10
20
30
SUPPLY VOLTAGE (V)
16789 G17
Large Signal
Transient Response
10V
–10V
AVCL = –1
VS = ±15V
5µs/DIV
16789 G20
% Overshoot vs Capacitive Load
60
VS = ±15V
RL = 2k TO 10k
50 AV = 1
TA = 25°C
40
30
RISING EDGE
20
FALLING EDGE
10
0
10
100
1000
CAPACITIVE LOAD (pF)
16789 G18
Small Signal
Transient Response
50mV
0V
–50mV
AVCL = 1
VS = ±15V
CL = 15pF
0.5µs/DIV
16789 G21
sn16789 16789fs
9
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