OP297_03 Datasheet, PDF (4/12 Pages) Analog Devices – Dual Low Bias Current Precision Operational Amplifier

OP297–Typical Performance Characteristics
400
1200 UNITS
300
200
100
T_A = 25؇C
V_S = ؎15V
V_CM = 0V
250
1200 UNITS
200
150
100
50
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 (pA)
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
400
1200 UNITS
300
T_A = 25؇C
V_S = ؎15V
V_CM = 0V
200
100
0
–100 –80 –60 –40 –20 0 20 40 60 80 100
INPUT OFFSET VOLTAGE (pA)
TPC 3. Typical Distribution of
Input Offset Current
60
V_S = ؎15V
40
V_CM = 0V
20
I_B–
0
I_B+
–20
I_OS
–40
–60
–75 –50 –25 0 25 50 75 100 125
TEMPERATURE (؇C)
TPC 4. Input Bias, Offset
Current vs. Temperature
60
V_S = ؎15V
V_CM = 0V
40
I_B–
I_B+
20
0
I_OS
–20
–40
–15 –10 –5
0
5
10 15
COMMON-MODE VOLTAGE (V)
TPC 5. Input Bias, Offset Current vs.
Common-Mode Voltage
10000
BALANCED OR UNBALANCED
V_S = ؎15V
V_CM = 0V
1000
100
BALANCED OR UNBALANCED
V_S = ؎15V
V_CM = 0V
10
100
–55؇C T_A +125؇C
T_A = +25؇C
10
10 100 1k
10k 100k 1M 10M
SOURCE RESISTANCE (⍀)
TPC 7. Effective Offset Voltage
vs. Source Resistance
1
0.1
100
1k 10k 100k 1M 10M 100M
SOURCE RESISTANCE (⍀)
TPC 8. Effective TCV_OS vs.
Source Resistance
؎3
T_A = 25؇C
V_S = ؎15V
V_CM = 0V
؎2
؎1
0
0
1
2
3
4
5
TIME AFTER POWER APPLIED (Minutes)
TPC 6. Input Offset Voltage
Warm-Up Drift
35
30
T_A = –55؇C
25
20
T_A = +25؇C
15
10
T_A = +125؇C
5
0 ^VS ^{= ؎15V}
–5
OUTPUT SHORTED
TO GROUND
–10
–15
T_A = +125؇C
–20
T_A = +25؇C
–25
–30
T_A = –55؇C
–35
0
1
2
3
4
TIME FROM OUTPUT SHORT (Minutes)
TPC 9. Short Circuit Current
vs. Time, Temperature
–4–
REV. E