OP191 Datasheet, PDF (6/20 Pages) Analog Devices – Micropower Single-Supply Rail-to-Rail Input/Output Op Amps

OP191/OP291/OP491–Typical Performance Characteristics
180
160
V_S = +3V
TA = +25°C
140
BASED ON 1200
OP AMPS
120
100
80
60
40
20
0
–0.18 –0.10 –0.02 0.06 0.14 0.22
INPUT OFFSET VOLTAGE – mV
120
V_S = +3V
100
–40°C < T_A < +125°C
BASED ON 600 OP AMPS
80
60
40
20
0
01 2 3 4 5 6 7
INPUT OFFSET VOLTAGE – µV/ °C
0
–0.02
V_S = +3V
–0.04
–0.06
–0.08
V_CM = 0.1V
V_CM = 0V
V_CM = 3V
–0.1
–0.12
V_CM = 2.9V
–0.14
–40
25
85
125
TEMPERATURE – °C
Figure 2. OP291 Input Offset Voltage
Distribution, V_S = +3 V
40
V_CM = 3V
30
20
10
V_CM = 2.9V
0
V_S = +3V
–10
–20
V_CM = 0.1V
–30
–40
–50
V_CM = 0V
–60
–40
25
85
125
TEMPERATURE – °C
Figure 5. Input Bias Current vs.
Temperature, V_S = +3 V
Figure 3. OP291 Input Offset Volt-
age Drift Distribution, V_S = +3 V
0
–0.2
–0.4 ^{VS = +3V}
–0.6
–0.8
–1.0
V_CM = 0.1V
V_CM = 2.9V
V_CM = 3V
V_CM = 0V
–1.2
–1.4
–1.6
–1.8
–40
25
85
125
TEMPERATURE – °C
Figure 6. Input Offset Current
vs. Temperature, V_S = +3 V
Figure 4. Input Offset Voltage vs.
Temperature, V_S = +3 V
36
30
V_S = +3V
24
18
12
6
0
–6
–12
–18
–24
–30
–36
0 0.30 0.60 0.90 1.2 1.5 1.8 2.1 2.4 2.7 3.0
INPUT COMMON MODE VOLTAGE – Volts
Figure 7. Input Bias Current vs.
Common-Mode Voltage, V_S = +3 V
3.00
+V_O @ R_L = 100k
2.95
2.90
2.85
+V_O @ R_L = 2k
2.80
V_S = +3V
2.75
–40
25
85
125
TEMPERATURE – °C
Figure 8. Output Voltage Swing
vs. Temperature, V_S = +3 V
160
140
120
100
80
60
40
20
0
–20
–40
100
V_S = +3V
T_A = +25°C
1k
10k 100k 1M
FREQUENCY – Hz
0
45
90
135
180
225
270
10M
Figure 9. Open-Loop Gain & Phase
vs. Frequency, V_S = +3 V
1200
1000
800
600
R_L = 100kΩ,
V_CM = 2.9V
R_L = 100kΩ,
V_CM = 0.1V
400
200
V_S = 3V, V_O = 0.3V / 2.7V
0
–40
25
85
125
TEMPERATURE – °C
Figure 10. Open-Loop Gain vs.
Temperature, V_S = +3 V
–6–
REV. 0