OP270 Datasheet, PDF (6/16 Pages) Analog Devices – Dual Very Low Noise Precision Operational Amplifier

OP270
130
120
110
100
90
80
70
60
50
40
30
20
10 ₁
T_A = 25؇C
V_S = ؎15V
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
TPC 10. CMR vs. Frequency
6
5
4
+125؇C
+25؇C
–55؇C
3
20
؎5
؎10
؎15
؎20
SUPPLY VOLTAGE (V)
TPC 11. Total Supply Current
vs. Supply Voltage
8
V_S = ؎15V
7
6
5
4
3
2
1
0–75 _{–50 –25 0 25 50 75 100 125}
TEMPERATURE (؇C)
TPC 12. Total Supply Current
vs. Temperature
140
T_A = 25؇C
120
100
80
–PSR
60
40
+PSR
20
0
1 10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
TPC 13. PSR vs. Frequency
140
T_A = 25؇C
120
V_S = ؎15V
100
80
60
40
20
0
1 10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
TPC 14. Open-Loop Gain vs.
Frequency
80
T_A = 25؇C
V_S = ؎15V
60
40
20
0
–20
1k
10k
100k
1M
10M
FREQUENCY (Hz)
TPC 15. Closed-Loop Gain vs.
Frequency
25
80
T_A = 25؇C
20
V_S = ؎15V ₁₀₀
PHASE
15
120
10
140
GAIN ^PHASE
5
MARGIN = 62؇
160
0
180
–5
–10
1
2
3 4 5 6 7 8 9 10
FREQUENCY (Hz)
TPC 16. Open-Loop Gain Phase
Shift vs. Frequency
5000
4000
3000
2000
1000
0
0
؎5 ؎10 ؎15 ؎20 ؎25
SUPPLY VOLTAGE (V)
TPC 17. Open-Loop Gain vs.
Supply Voltage
80
8
70
7
60
⌽
6
50
GBP
5
4
40
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (؇C)
TPC 18. Gain-Bandwidth Phase
Margin vs. Temperature
–6–
REV. C