| 详细介绍： Tektronix TDS744A Oscilloscope, Digital: 500MHz,2GSa/s,4ch (Stand alone)
The Tektronix TDS744A oscilloscope is a graph-displaying device – it draws a graph of an electrical signal. In most applications, the graph shows how signals change over time: the vertical (Y) axis represents voltage and the horizontal (X) axis represents time. The intensity or brightness of the display is sometimes called the Z axis.
The Tektronix TDS744A oscilloscope's simple graph can tell you many things about a signal, such as: the time and voltage values of a signal, the frequency of an oscillating signal, the “moving parts” of a circuit represented by the signal, the frequency with which a particular portion of the signal is occurring relative to, other portions, whether or not a malfunctioning component is distorting the signal, how much of a signal is direct current (DC) or alternating current (AC) and how much of the signal is noise and whether the noise is changing with time.
Performance Characteristics of the TDS744A
| Form Factor |
Benchtop |
| Bandwidth |
500 MHz |
| Number of Channels |
4 ch |
| Simultaneous Channels |
4 ch |
| Simultaneous Maximum Sampling Rate/ch |
1 GSa/s |
| One ch. only max. sampling rate |
2 GSa/s |
| Max. Record Length |
50000 pt/sec |
| Min. Vertical Sensitivity |
1 mV/div |
| Maximum Vertical Sensitivity |
10 V/div |
| Channel to Channel Delay |
50 ps |
| Rise time |
700 ps |
| Number of Bits |
8 bits |
| Input Impedance |
1 MOhm |
| Input Impedance (alternate) |
50 Ohm |
| Input Coupling |
AC,DC,GND |
| Maximum Input Voltage |
400 Vrms |
| Main time base - lowest |
500 ps/div |
| Main time base - highest |
10 s/div |
| Timebase accuracy |
0.0025 % |
| Trigger Source |
External,Internal |
| Trigger Modes |
Auto,Edge,Logic,Normal,Pulse,Single |
| Minimum Trigger Holdoff |
16 ns |
| Minimum Glitch Trigger |
1 ns |
| Display Type |
Color LCD |
| Display Size |
17.78 cm |
| Display modes |
Dot,Vector |
| Display Update Rate |
180000 wv/sec |
|
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