Datasheet

OPA227, 2227, 4227
OPA228, 2228, 4228
8
SBOS110A
www.ti.com
TYPICAL PERFORMANCE CURVES (CONT)
At T
A
= +25°C, R
L
= 10kΩ, and V
S
= ±15V, unless otherwise noted.
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
∆I
B
(nA)
0 5 10 15 20 25 30 35 40
Supply Voltage (V)
CHANGE IN INPUT BIAS CURRENT
vs POWER SUPPLY VOLTAGE
Curve shows normalized change in bias current
with respect to V
S
= ±10V. Typical I
B
may range
from –2nA to +2nA at V
S
= ±10V.
CHANGE IN INPUT BIAS CURRENT
vs COMMON-MODE VOLTAGE
15
Common-Mode Voltage (V)
–15 –10 –50 510
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
∆I
B
(nA)
V
S
= ±15V
V
S
= ±5V
Curve shows normalized change in bias current
with respect to V
CM
= 0V. Typical I
B
may range
from –2nA to +2nA at V
CM
= 0V.
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
15
14
13
12
11
10
–10
–11
–12
–13
–14
–15
V+
(V+) –1V
(V+) –2V
(V+) –3V
(V–) +3V
(V–) +2V
(V–) +1V
V–
0 102030405060
Output Current (mA)
Output Voltage Swing (V)
–55°C
–40°C
–55°C
85°C
25°C
85°C
25°C
–40°C
125°C
125°C
100
10
1
Settling Time (µs)
±1 ±10 ±100
Gain (V/V)
SETTLING TIME vs CLOSED-LOOP GAIN
0.01%
OPA227
0.1%
V
S
= ±15V, 10V Step
C
L
= 1500pF
R
L
= 2kΩ
0.01%
OPA228
0.1%
SLEW RATE vs TEMPERATURE
125
Temperature (°C)
–75 –50 –25 0 25 50 75 100
3.0
2.5
2.0
1.5
1.0
0.5
0
Slew Rate (µV/V)
Negative Slew Rate
R
LOAD
= 2kΩ
C
LOAD
= 100pF
Positive Slew Rate
OPA227
SLEW RATE vs TEMPERATURE
125
Temperature (°C)
–75 –50 –25 0 25 50 75 100
12
10
8
6
4
2
0
Slew Rate (µV/V)
R
LOAD
= 2kΩ
C
LOAD
= 100pF
OPA228