60
OP27C
50
40
30
OP27A
20
10
OP27A
0
–10
OP27A
–20
–30
–40 TRIMMING WITH
–50 10k⍀ POT DOES
NOT CHANGE
–60 TCVOS
–70
OP27C
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE – ؇C
TPC 10. Offset Voltage Drift of
Five Representative Units vs.
Temperature
6
4
2
0
–2
–4
–6
6
4
2
0
–2
–4
–6
0
1234
567
TIME – Months
TPC 11. Long-Term Offset Voltage
Drift of Six Representative Units
TA = 25؇C
VS = 15V
10
5
OP27
OP27 C/G
OP27 F
OP27 A/E
1
0
1
2
3
4
5
TIME AFTER POWER ON – Min
TPC 12. Warm-Up Offset Voltage
Drift
30
25
TA =
20 25؇C
TA = 70؇C
VS = ؎15V
15
THERMAL
SHOCK
RESPONSE
10
BAND
5
DEVICE IMMERSED
IN 70؇C OIL BATH
0
–20
0
20 40 60 80 100
TIME – Sec
TPC 13. Offset Voltage Change Due
to Thermal Shock
50
VS = ؎15V
40
30
20
OP27C
10
OP27A
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE – ؇C
TPC 14. Input Bias Current vs.
Temperature
50
VS = ؎15V
40
30
20
OP27C
10
OP27A
0
–75 –50 –25 0 25 50 75 100 125
TEMPERATURE – ؇C
TPC 15. Input Offset Current vs.
Temperature
130
110
90
70
50
30
10
–10
1
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY – Hz
TPC 16. Open-Loop Gain vs.
Frequency
10
70
⌽M
VS = ؎15V
60
9
50
GBW
8
4
3
SLEW
7
2
–75 –50 –25 0 25 50 75
TEMPERATURE – ؇C
6
100 125
TPC 17. Slew Rate, Gain-Bandwidth
Product, Phase Margin vs.
Temperature
25
⌽
20
GAIN
15
PHASE
10
MARGIN
= 70؇
5
80
TA = 25؇C
VS = ؎15V 100
120
140
160
0
180
–5
200
–10
1M
10M
FREQUENCY – Hz
220
100M
TPC 18. Gain, Phase Shift vs.
Frequency
REV. A
–9–