4
®
OPA177
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
= ±15V, unless otherwise noted.
10 30 50 700204060
30
25
20
15
10
5
0
Absolute Change in Input
Offset Voltage (µV)
Time (s)
OFFSET VOLTAGE CHANGE
DUE TO THERMAL SHOCK
80
Device Immersed in 70°C Inert Liquid
Plastic DIP
CLOSED-LOOP RESPONSE vs FREQUENCY
100
80
60
40
20
0
–20
10 100 1k 10k 100k 1M 10M
Closed-Loop Gain (dB)
Frequency (Hz)
3
2
1
0
–1
–2
–3
Offset Voltage Change (µV)
0 30 60 90 120
Time from Power Supply Turn-On (s)
WARM-UP OFFSET VOLTAGE DRIFT
15 45 75 105
17.5
15
12.5
10
7.5
5
2.5
0
V
OUT
(V)
0 6 12 18 24 30 36
I
OUT
(mA)
MAXIMUM V
OUT
vs I
OUT
(Positive Swing)
V
S
= ±18V
V
S
= ±15V
V
S
= ±12V
V
S
= ±15V
–17.5
–15
–12.5
–10
–7.5
–5
–2.5
0
V
OUT
(V)
0 –2 –4 –6 –8 –10 –12
–I
OUT
(mA)
MAXIMUM V
OUT
vs I
OUT
(Negative Swing)
V
S
= ±18V
V
S
= ±15V
V
S
= ±12V
V
S
= ±15V
1
0.1
0.01
0.001
THD + N (%)
1k 10k 100k
Frequency (Hz)
TOTAL HARMONIC DISTORTION AND NOISE
vs FREQUENCY
A = 20dB, 3Vrms, 10kΩ load
30kHz low pass filtered
Inverting
Noninverting
