Table of Contents
Advertisement
7 Output Current
The peak output current is 150 mA per channel in the grounded load configuration or 75 mA per channel in
the floating load configuration. The maximum RMS current is 106 mA in the grounded configuration and 53
mA in the floating load configuration.
The maximum simultaneous output current from all channels is 1.5 A.
8 Power Bandwidth
The nominal slew‐rate of the PD32 in the grounded load configuration is 19 V/us. Therefore, the unloaded
maximum frequency sine‐wave is
That is, the power bandwidth for a 120 Vp‐p sine‐wave is 50 kHz. In the floating load configuration, the
slew‐rate is doubled to 38 V/us, therefore, the power bandwidth for a 240 Vp‐p sine‐wave is 50 kHz
With a capacitive load, the power bandwidth is limited by the output current. The maximum frequency
sine wave is
where
is the peak current limit,
capacitance. The power bandwidth versus load capacitance is listed below.
Load
Peak to Peak Voltage (Grounded)
Cap.
50
10 nF
95 kHz
30 nF
31 kHz
100 nF
9.5 kHz
300 nF
3.1 kHz
1 uF
950 Hz
3 uF
310 Hz
10 uF
96 Hz
30 uF
32 Hz
Table 1. Power Bandwidth versus Load Capacitance (Grounded and Floating Load Configuration)
In the following figures, the maximum frequency periodic signal is plotted against the peak‐to‐peak
voltage.
is the peak‐to‐peak output voltage, and is the effective load
100
140
47 kHz
34 kHz
15 kHz
11 kHz
4.7 kHz
3.4 kHz
1.5 kHz
1.1 kHz
470 Hz
340 Hz
150 Hz
114 Hz
48 Hz
34 Hz
16 Hz
11 Hz
19
10
.
Load
Peak to Peak Voltage (Floating)
Cap.
100
10 nF
23 kHz
30 nF
7.9 kHz
100 nF
2.3 kHz
300 nF
790 Hz
1 uF
230 Hz
3 uF
80 Hz
10 uF
24 Hz
30 uF
8 Hz
200
280
11 kHz
8.5 kHz
3.9 kHz
2.8 kHz
1.1 kHz
850 Hz
390 Hz
284 Hz
119 Hz
85 Hz
40 Hz
28 Hz
12 Hz
9 Hz
4 Hz
3 Hz
Advertisement
Table of Contents
