DRV632
SLOS681 –JANUARY 2011
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TYPICAL CHARACTERISTICS
VDD = 3.3 V , TA = 25°C, C(PUMP) = C(VSS) = 1 µF , CIN = 2.2 µF, RIN = 15 kΩ, Rfb = 30 kΩ, ROUT = 32 Ω, COUT = 1 nF (unless
otherwise noted)
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
vs
vs
OUTPUT VOLTAGE
OUTPUT VOLTAGE
10
1
10
1
Active Filter
Gain = 2V/V
RL = 10 kΩ
Active Filter
Gain = 2V/V
RL = 600Ω
0.1
0.1
0.01
0.001
0.0001
0.01
0.001
0.0001
100 Hz
1 kHz
10 kHz
100 Hz
1 kHz
10 kHz
0.1
1
3
0.1
1
3
Output Voltage (V)
Output Voltage (V)
Figure 1.
Figure 2.
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
vs
vs
FREQUENCY
FREQUENCY
10
1
10
1
Active Filter
Gain = 2V/V
RL = 10 kΩ
Ch1 1 Vrms
Ch1 2 Vrms
Active Filter
Gain = 2V/V
RL = 600 Ω
Ch1 1 Vrms
Ch1 2 Vrms
0.1
0.1
0.01
0.001
0.0001
0.01
0.001
0.0001
20
100
1k
10k 20k
20
100
1k
10k 20k
Frequency (Hz)
Frequency (Hz)
Figure 3.
Figure 4.
6
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