OPA1641_15 Datasheet, PDF (8/29 Pages) Texas Instruments – High-Performance, JFET-Input AUDIO OPERATIONAL AMPLIFIERS

OPA1641
OPA1642
OPA1644
SBOS484B – DECEMBER 2009 – REVISED AUGUST 2010
www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±18V (continued)
At T_A = +25°C, R_L = 2kΩ connected to midsupply, V_CM = V_OUT = midsupply, unless otherwise noted.
POSITIVE OVERLOAD RECOVERY
NEGATIVE OVERLOAD RECOVERY
V_OUT
G = -10
V_IN
G = -10
V_IN
2kW
V_IN
20kW
OPA1641
V_OUT
Time (0.4ms/div)
Figure 19.
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD (100mV Output Step)
40
G = +1
35
30
R_OUT = 0W
+15V
OPA1641
ROUT
-15V
RL
CL
25
20
R_OUT = 24W
15
R_OUT = 51W
10
5
0
0 100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 21.
OPEN-LOOP GAIN vs TEMPERATURE
0
-0.2
10kW
-0.4
-0.6
2kW
-0.8
-1.0
-1.2
-40
-15
10
35
60
85
Temperature (°C)
Figure 23.
V_OUT
2kW
V_IN
20kW
OPA1641
V_OUT
Time (0.4ms/div)
Figure 20.
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD (100mV Output Step)
45
40
35
30
RI = 2kW
RF = 2kW
+15V
OPA1641
-15V
ROUT
CL
R_OUT = 0W
R_OUT = 24W
25
20
15
R_OUT = 51W
10
5
0 ^{G = -1}
0 100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 22.
80
70
60
50
40
30
20
10
0
-10
-20
-40
I_B AND I_OS vs TEMPERATURE
+I_B
-I_B
-I_OS
-15
10
35
60
85
Temperature (°C)
Figure 24.
8
Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): OPA1641 OPA1642 OPA1644