OP27
CHANGE IN INPUT OFFSET VOLTAGE – V
60
50
40
OFFSET VOLTAGE – V
OP27C
CHANGE IN OFFSET VOLTAGE – V
6
4
2
0
–2
–4
–6
6
4
2
0
–2
–4
–6
0
1
2
3
4
5
6
7
TIME – Months
T
A
= 25 C
V
S
= 15V
10
OP27 C/G
OP27 F
5
OP27 A/E
30
20
10
0
–10
–20
–30
–40
–50
–60
TRIMMING WITH
10k POT DOES
NOT CHANGE
TCV
OS
OP27A
OP27A
OP27A
–70
–75 –50 –25
OP27C
1
0 25 50 75 100 125 150 175
TEMPERATURE – C
0
1
2
3
4
5
TIME AFTER POWER ON – Min
TPC 10. Offset Voltage Drift of
Five Representative Units vs.
Temperature
TPC 11. Long-Term Offset Voltage
Drift of Six Representative Units
TPC 12. Warm-Up Offset Voltage
Drift
30
V
S
=
25
15V
INPUT BIAS CURRENT – nA
50
V
S
=
40
15V
INPUT OFFSET CURRENT – nA
50
V
S
=
40
15V
OPEN-LOOP GAIN – dB
20
T
A
=
25 C
T
A
= 70 C
30
30
15
THERMAL
SHOCK
RESPONSE
BAND
20
OP27C
10
OP27A
0
20
OP27C
10
OP27A
10
5
DEVICE IMMERSED
IN 70 C OIL BATH
0
–20
0
20
40
TIME – Sec
60
80
100
–50 –25
0
25
50
75
100 125 150
0
–75 –50
TEMPERATURE – C
–25 0
25
50 75
TEMPERATURE – C
100
125
TPC 13. Offset Voltage Change Due
to Thermal Shock
TPC 14. Input Bias Current vs.
Temperature
TPC 15. Input Offset Current vs.
Temperature
130
110
VOLTAGE GAIN – dB
PHASE MARGIN – Degrees
25
10
70
M
V
S
=
60
15V
9
80
T
A
= 25 C
V
S
= 15V
GAIN
100
120
PHASE
MARGIN
= 70
140
160
180
200
220
100M
PHASE SHIFT – Degrees
90
70
50
30
10
–10
GAIN BANDWIDTH PRODUCT – MHz
20
15
GAIN – dB
10
5
0
–5
50
4
GBW
8
SLEW RATE – V/ s
3
SLEW
7
2
–75
–50 –25
0
25
50
75
6
100 125
1
10
100
1k 10k 100k 1M 10M 100M
FREQUENCY – Hz
–10
1M
TEMPERATURE – C
10M
FREQUENCY – Hz
TPC 16. Open-Loop Gain vs.
Frequency
TPC 17. Slew Rate, Gain-Bandwidth
Product, Phase Margin vs.
Temperature
TPC 18. Gain, Phase Shift vs.
Frequency
REV. A
–9–
AD [ ANALOG DEVICES ]
