Filter
Top Products
© National Instruments Corporation 7 NI 5421 Specifications
Table 1. (Continued)
Specification Value Comments
Suggested Maximum Frequencies for Common Functions
Function Path Disable the
Analog Filter
and the Digital
Interpolation
Filter for Square,
Ramp, and
Triangle.
Direct
Low-Gain
Amplifier
High-Gain
Amplifier
Sine 43 MHz 43 MHz 43 MHz
Square Not Recommended 25 MHz 12.5 MHz
Ramp Not Recommended 5 MHz 5 MHz
Triangle Not Recommended 5 MHz 5 MHz
Spectral Characteristics
Signal to
Noise and
Distortion
(SINAD)
Path Amplitude
–1 dBFS.
Measured from
DC to 50 MHz.
SINAD at low
amplitudes is
limited by a
–148 dBm/Hz
noise floor.
Direct
Low-Gain
Amplifier
High-Gain
Amplifier
1 MHz 64 dB 66 dB 63 dB
10 MHz 61 dB 60 dB 47 dB
20 MHz 57 dB 56 dB 42 dB
30 MHz 60 dB 62 dB 62 dB
40 MHz 60 dB 62 dB 62 dB
43 MHz 58 dB 60 dB 55 dB