OP497–Typical Performance Characteristics
(25 C, Vs = 15 V, unless otherwise noted.)
50
T
A
= 25 C
V
S
= 15V
V
CM
= 0V
PERCENTAGE OF UNITS
50
T
A
= 25 C
V
S
= 15V
V
CM
= 0V
PERCENTAGE OF UNITS
60
T
A
= 25 C
V
S
= 15V
V
CM
= 0V
PERCENTAGE OF UNITS
40
40
50
40
30
30
30
20
20
20
10
10
10
0
–100 –80 –60 –40 –20
0
20 40 60 80 100
V
INPUT OFFSET VOLTAGE –
0
–100 –80 –60 –40 –20 0 20 40 60 80 100
INPUT BIAS CURRENT – pA
0
0
10
20
30
40
50
60
INPUT OFFSET CURRENT – pA
TPC 1. Typical Distribution of
Input Offset Voltage
TPC 2. Typical Distribution of
Input Bias Current
TPC 3. Typical Distribution of
Input Offset Current
50
V
S
= 15V
V
CM
= 0V
PERCENTAGE OF UNITS
40
INPUT CURRENT – pA
1000
V
S
= 15V
V
CM
= 0V
70
60
INPUT BIAS CURRENT – pA
50
40
30
20
10
T
A
= 25 C
V
S
= 15V
–I
B
30
100
+I
B
20
–I
B
+I
B
I
OS
10
0
0
0.1
0.2
0.3 0.4 0.5
TCV
OS
– V/ C
0.6
0.7
0.8
10
–75 –50 –25
0
25
50
75
100 125
0
–15
–10
–5
0
5
10
15
TEMPERATURE – C
COMMON-MODE VOLTAGE – Volts
TPC 4. Typical Distribution of
TCV
OS
TPC 5. Input Bias, Offset
Current vs. Temperature
TPC 6. Input Bias Current vs.
Common-Mode Voltage
3
DEVIATION FROM FINAL VALUE –
T
A
= 25 C
V
S
= 15V
V
CM
= 0V
2
V
10000
BALANCED OR UNBALANCED
V
S
= 15V
V
CM
= 0V
V/ C
100
BALANCED OR UNBALANCED
V
S
= 15V
V
CM
= 0V
EFFECTIVE OFFSET VOLTAGE –
V
EFFECTIVE OFFSET VOLTAGE –
1000
10
1
100
–55 C
T
A
125 C
T
A
= +25 C
10
10
1
0
0
1
5
2
3
4
TIME AFTER POWER APPLIED – Minutes
100
1k
10k
100k
1M
10M
0.1
100
1k
SOURCE RESISTANCE –
10k
100k
1M
10M
SOURCE RESISTANCE –
100M
TPC 7. Input Offset Voltage
Warm-Up Drift
TPC 8. Effective Offset Voltage
vs. Source Resistance
TPC 9. Effective TCV
OS
vs.
Source Resistance
–4–
REV. D
AD [ ANALOG DEVICES ]
