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National Instruments Corporation
9
NI 5421 Specifications
Spectral Characteristics (Continued)
0
º
C to 40
º
C
Total
Harmonic
Distortion
(THD)
Path
Amplitude
–1 dBFS.
Includes the 2
nd
through the 6
th
harmonic.
Direct
Low-Gain
Amplifier
High-Gain
Amplifier
20 kHz
–77 dBc (typical)
–77 dBc
(typical)
–77 dBc (typical)
1 MHz
–75 dBc (typical)
–70 dBc
(typical)
–62 dBc (typical)
5 MHz
–68 dBc
–68 dBc
–55 dBc
10 MHz
–65 dBc
–61 dBc
–46 dBc
20 MHz
–55 dBc
–53 dBc
—
30 MHz
–50 dBc
–48 dBc
—
40 MHz
–48 dBc
–46 dBc
—
43 MHz
–47 dBc
–45 dBc
—
0
º
C to 55
º
C
Total
Harmonic
Distortion
(THD)
Path
Amplitude
–1 dBFS.
Includes the 2
nd
through the 6
th
harmonic.
Direct
Low-Gain
Amplifier
High-Gain
Amplifier
20 kHz
–76 dBc (typical)
–76 dBc
(typical)
–76 dBc (typical)
1 MHz
–74 dBc (typical)
–69 dBc
(typical)
–61 dBc (typical)
5 MHz
–67 dBc
–67 dBc
–54 dBc
10 MHz
–63 dBc
–60 dBc
–45 dBc
20 MHz
–54 dBc
–52 dBc
—
30 MHz
–48 dBc
–46 dBc
—
40 MHz
–46 dBc
–41 dBc
—
43 MHz
–45 dBc
–41 dBc
—
Table 1.
(Continued)
Specification
Value
Comments