Datasheet

www.ti.com
OPA344, 2344, 4344
OPA345, 2345, 4345
6
SBOS107A
TYPICAL PERFORMANCE CURVES (Cont.)
At T
A
= +25°C, V
S
= +5V, and R
L
= 10kΩ connected to V
S
/2, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
20
THD+N (%)
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
OL
, CMRR, PSRR (dB)
Temperature (°C)
–25 0 25–50 50 12575 100
140
120
100
80
60
40
20
0
CMRR
PSRR
INPUT BIAS CURRENT vs TEMPERATURE
–75
Input Bias Current (pA)
Temperature (°C)
–25 0 25–50 10050 75 125
10000
1000
100
10
1
0.1
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs TEMPERATURE
–75 –50 0
Quiescent Current (µA)
Temperature (°C)
25 50 100
I
Q
+I
SC
–I
SC
75–25 125
200
175
150
135
100
75
50
25
0
Short-Circuit Current (mA)
40
35
30
25
20
15
10
5
0
SLEW RATE vs TEMPERATURE
–75
Slew Rate (V/µs)
Temperature (°C)
250
SR–
SR–
SR+
SR+
7550–25–50 125100
3.0
2.5
2.0
1.5
1.0
0.5
0
OPA345
OPA344
INPUT BIAS CURRENT
vs COMMON-MODE VOLTAGE
–1
Input Bias Current (pA)
Common-Mode Voltage (V)
012 4356
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.