High-Speed Digitizers Product Overview
PrintOverview
Digitizers offer several advantages over traditional stand-alone oscilloscopes by delivering an open architecture and flexible software. With an NI digitizer, not only can you perform standard oscilloscope measurements, but you also can easily build other instruments such as spectrum analyzers, transient recorders, ultrasonic receivers, and more. In addition, you can synchronize NI digitizers with each other as well as with other mixed-signal instruments with picosecond-level accuracy among modules for mixed-signal and high-channel-count applications.
Some of the features of National Instruments digitizers are compared below.
Table of Contents
General Features
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Maximum |
2 GS/s (1-Ch) 1 GS/s (2-Ch) |
250 MS/s |
200 MS/s |
100 MS/s |
100 MS/s |
100/50 MS/s |
60 MS/s |
15 MS/s |
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Resolution |
8-bit |
8-bit |
12-bit |
14-bit |
14-bit |
8-bit |
12-bit |
24-bit (500kS/s) or 16-bit (15 MS/s) |
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Bandwidth |
300 MHz |
125 MHz |
150 MHz |
100 MHz |
100 MHz |
50 MHz |
60 MHz |
(0.4)* Sample Rate (6 MHz max) |
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Max RIS |
20 GS/s |
5 GS/s |
4 GS/s |
2 GS/s |
2 GS/s |
- |
- |
- |
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Form Factor |
PCI, PXI |
PCI, PXI |
PCI, PXI |
PCI, PXI |
PCI, PXI, PXI Express |
USB |
PCI, PXI |
PCI, PXI |
Channel Characteristics
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Max Input Range |
±5V |
±5V, |
±5V, |
±5V, |
±5V, |
±20V |
±15V |
±5V |
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Number of Channels |
2 |
2 |
2 |
2 |
2 |
2 |
8 |
2 (or 1 differential), 2 diff. w/ NI-5900 |
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Input Impedance |
50 Ω, 1 MΩ |
50 Ω, 1 MΩ |
50 Ω, 1 MΩ |
50 Ω, 1 MΩ |
50 Ω, |
1 MΩ |
50 Ω, 1 MΩ |
50 Ω, |
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Onboard Memory per Channel |
8, 64, 256 MB |
8, 64, 256 MB |
8, 32, 256, 512 MB |
64, 256 MB |
8, 32, 256, 512 MB |
4 MB |
16, 128, 512 MB |
8, 32, 256 MB |
1 - Input range is 5 V for 50 Ω input impedance and 10 V for 1MΩ input impedance
Timing Characteristics
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Timing |
5 ps |
40 ps |
50 ps |
100 ps |
100 ps |
(±1 sample) 10 ns max |
(±1 sample) 16.7 ns max |
(±1 sample) 66.7 ns max |
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Synchro- |
T-Clock (10s of ps) |
T-Clock (10s of ps) |
T-Clock (10s of ps) |
T-Clock (10s of ps) |
T-Clock (10s of ps) |
RTSI |
T-Clock (10s of ps) |
T-Clock (10s of ps) |
| Triggering | Standard | Standard, Video | Standard, Video | Standard, Video | Standard, Video | Standard | Standard | Standard |
Standard triggering includes analog edge, digital edge, hysteresis, window, software, and immediate triggers.
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