OPA1641-Q1 Datasheet, PDF (8/31 Pages) Texas Instruments – SoundPlus JFET-Input, Automotive-Grade, Audio Operational Amplifiers

OPA1641-Q1, OPA1642-Q1
SBOS791 – JUNE 2017
www.ti.com
Typical Characteristics (continued)
at T_A = 25°C, R_L = 2 kΩ connected to midsupply, and V_CM = V_OUT = midsupply (unless otherwise noted)
0.001%
–100
0.01%
–80
G = –1
R_L = 2 kΩ
G = –1
R_L = 600 Ω
0.0001%
G = –1
R_L = 600 Ω
G = +1
R_L = 600 Ω
–120
G = +1
R_L = 2 kΩ
0.001%
0.0001%
G = –1
G = +1
R_L = 2 kΩ
R_L = 600 Ω
–100
–120
0.00001%
10
100
VOUT = 3 V_RMS
1k
Frequency (Hz)
BW = 80 kHz
–140
10k 20k
G = +1
R_L = 2 kΩ
0.00001%
10
100
1k
10k
Frequency (Hz)
VOUT = 3 V_RMS
BW > 500 kHz
–140
100k
0.01%
Figure 7. THD+N Ratio vs Frequency
–80
0.01%
Figure 8. THD+N Ratio vs Frequency
-80
0.001%
0.0001%
–100
–120
0.001%
0.0001%
SMPTE/DIN
Two-Tone
4:1 (60 Hz and 7 kHz)
DIM30
(3 kHz Square Wave
and 15 kHz Sine Wave)
-100
-120
0.00001%
0.1
G = –1, R_L = 2 kΩ
G = +1, R_L = 2 kΩ
1
BW = 80 kHz
Output Amplitude (V_RMS)
1 kHz Signal
–140
10 20
R_SOURCE = 0 Ω
Figure 9. THD+N Ratio vs Output Amplitude
–80
–90
–100
–110
R_L = 600 Ω
–120
R_L = 2 kΩ
–130
–140
10
V_S = ±15 V
100
1k
Frequency (Hz)
V_OUT = 3 V_RMS
R_L = 5 kΩ
10k
100k
G=1
Figure 11. Channel Separation vs Frequency
CCIF Twin-Tone
(19 kHz and 20 kHz)
0.00001%
0.1
1
Output Amplitude (V_RMS)
G=1
-140
10 20
Figure 10. Intermodulation Distortion
vs Output Amplitude
Output
+18 V
OPA1641-Q1
-18 V
37 VPP
Sine Wave
(±18.5 V)
Output
Time (0.4 ms/div)
Figure 12. No Phase Reversal
8
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