
6
OPA344, 2344, 4344
OPA345, 2345, 4345
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25
°
C, V
S
= +5V, and R
L
= 10k
connected to V
S
/2, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
20
T
Frequency (Hz)
100
1k
10k
20k
1
0.1
0.010
0.001
OPA344: G = 1
OPA345: G = 5
OPEN-LOOP GAIN, COMMON-MODE REJECTION RATIO,
AND POWER-SUPPLY REJECTION vs TEMPERATURE
A
OL
–75
A
O
,
Temperature (
°
C)
–25
0
25
–50
50
125
75
100
140
120
100
80
60
40
20
0
CMRR
PSRR
INPUT BIAS CURRENT vs TEMPERATURE
–75
I
Temperature (
°
C)
–25
0
25
–50
100
50
75
125
10000
1000
100
10
1
0.1
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs TEMPERATURE
–75
–50
0
Temperature (
°
C)
Q
μ
A
25
50
100
I
Q
+I
SC
–I
SC
75
–25
125
200
175
150
135
100
75
50
25
0
S
40
35
30
25
20
15
10
5
0
SLEW RATE vs TEMPERATURE
–75
S
μ
s
Temperature (
°
C)
25
0
SR–
SR–
SR+
SR+
75
50
–25
–50
125
100
3.0
2.5
2.0
1.5
1.0
0.5
0
OPA345
OPA344
INPUT BIAS CURRENT
vs COMMON-MODE VOLTAGE
–1
I
Common-Mode Voltage (V)
0
1
2
4
3
5
6
6
4
2
0
–2
–4
–6
V+
Supply
V–
Supply
Input voltage
≤
–0.3V
can cause op amp output
to lock up. See text.