OP497 Datasheet, PDF (4/12 Pages) Analog Devices – Precision Picoampere Input Current Quad Operational Amplifier

OP497–Typical Performance Characteristics (25؇C, Vs = 15 V, unless otherwise noted.)
50
50
T_A = 25؇C
V_S = 15V
40
V_CM = 0V
40
30
30
20
20
10
10
60
T_A = 25؇C
V_S = 15V
V_CM = 0V
50
40
30
20
10
T_A = 25؇C
V_S = 15V
V_CM = 0V
0
–100 –80 –60 –40 –20 0 20 40 60 80 100
INPUT OFFSET VOLTAGE – ␮V
TPC 1. Typical Distribution of
Input Offset Voltage
0
–100 –80 –60 –40 –20 0 20 40 60 80 100
INPUT BIAS CURRENT – pA
TPC 2. Typical Distribution of
Input Bias Current
0
0
10 20 30 40 50 60
INPUT OFFSET CURRENT – pA
TPC 3. Typical Distribution of
Input Offset Current
50
V_S = ؎15V
V_CM = 0V
40
30
20
10
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
TCV_OS – ␮V/؇C
TPC 4. Typical Distribution of
TCV_OS
؎3
T_A = 25؇C
V_S = ؎15V
V_CM = 0V
؎2
1000
V_S = ؎15V
V_CM = 0V
100
–I_B
+I_B
10
–75 –50 –25 0
I_OS
25 50 75
TEMPERATURE – ؇C
100 125
TPC 5. Input Bias, Offset
Current vs. Temperature
10000
BALANCED OR UNBALANCED
V_S = 15V
V_CM = 0V
1000
70
T_A = 25 C
60 ^{VS = ؎15V}
–I_B
50
40
+I_B
30
20
10
0
–15 –10 –5
0
5
10 15
COMMON-MODE VOLTAGE – Volts
TPC 6. Input Bias Current vs.
Common-Mode Voltage
100 _{BALANCED OR UNBALANCED}
V_S = 15V
V_CM = 0V
10
؎1
0
0
1
2
3
4
5
TIME AFTER POWER APPLIED – Minutes
TPC 7. Input Offset Voltage
Warm-Up Drift
100
–55 C TA 125 C
TA = +25 C
10
10
100 1k 10k 100k 1M 10M
SOURCE RESISTANCE – ⍀
TPC 8. Effective Offset Voltage
vs. Source Resistance
1
0.1
100
1k 10k 100k 1M 10M 100M
SOURCE RESISTANCE – ⍀
TPC 9. Effective TCV_OS vs.
Source Resistance
–4–
REV. D