Chapter 17 Specifications; Input Section - YOKOGAWA DL7440 User Manual

Chapter 17 Specifications

17.1 Input Section

Item
Number of input channels
Input coupling
Input connector
Input impedance
Voltage-axis sensitivity setting
1
Maximum input voltage
Maximum DC offset setting range
(When the probe attenuation
is set to 1:1)
Vertical (voltage) axis accuracy
2
DC accuracy :
Offset voltage axis accuracy
2, 3
Frequency characteristics
(–3 dB point when a sine wave of
amplitude ±4 divisions is input)
Lower –3 dB point when AC
coupled
Skew between channels
(When using the same settings)
4
Residual noise level
Isolation between channels
(Same voltage sensitivity)
A/D conversion resolution
Probe attenuation setting
Bandwidth limit
Maximum sample rate
Maximum record length
1 When using the probe, be sure that the maximum input voltage of the DL7400 and the maximum input voltage of the probe
are not exceeded.
2 Value measured under standard operating conditions (see section 17.12) after warm-up and after calibration with the time
base set to internal clock.
3 Value in the case of a repetitive phenomenon. The frequency bandwidth of a single-shot phenomenon is the smaller of the
two values, DC to sampling frequency/2.5 and the frequency bandwidth of a repetitive phenomenon.
4 When the input section is shorted, the record length set to 10 kW, the acquisition mode set to normal mode, the
accumulation set to OFF, and the probe attenuation set to 1:1.
5 Typical value represents a typical or average value. It is not strictly warranted.
6 Automatically set to the optimum values for the current probe (700937, 701930, 701931, 701932, or 701933 sold separately).
IM 701450-01E
Specifications
DL7440 (4-channel model, models 7071450 and 701460): 4 (CH1 to CH4)
DL7480 (8-channel model, models 7071470 and 701480): 8 (CH1 to CH8)
AC 1MΩ, DC 1MΩ, DC 50Ω, and GND
BNC connector
1 MΩ±1.0%, approx. 20 pF
50 Ω±1.0% (VSWR 1.4 or less (DC to 500 MHz))
For 1MΩ input: 2 mV/div to 10 V/div (1-2-5 steps)
For 50 Ω input: 2 mV/div to 1 V/div (1-2-5 steps)
For 1 MΩ input (at a frequency of 1 kHz or less):
For 50 Ω input: 5 Vrms and 10 Vpeak (not to exceed either of the two values)
2 mV/div to 50 mV/div:
100 mV/div to 500 mV/div: ±10 V
1 V/div to 10 V/div:
2
2 mV/div to 50 mV/div:
100 mV/div to 500 mV/div: ±(1% of the setting + 2 mV)
1 V/div to 10 V/div:
For 50 Ω input
1 V/div to 10 mV/div:
5 mV/div to 2 mV/div:
For 1 MΩ input (when using the 700988 passive probe, indicates the frequency of the input
signal at the probe tip. The value inside the brackets is the frequency when using the
701941 miniature passive probe.)
10 V/div to 10 mV/div:
5 mV/div to 2 mV/div:
10 Hz or less (1 Hz or less when using the 10:1 probe provided)
1 ns or less
±1.25 mV or ±0.15 div, whichever is greater (typical value
At 500 MHz: –34 dB (typical value
8 bits (24 LSB/div)
1:1, 10:1, 100:1, 1000:1, 10A:1V
Turn ON/OFF the 100-MHz or 20-MHz bandwidth limit for each channel.
Realtime sampling mode
When interleave mode is ON:
When interleave mode is OFF:
Repetitive sampling mode:
4 MW memory model (701450 and 701470)
When interleave mode is ON:
When interleave mode is OFF:
16 MW memory model (701460 and 701480)
When interleave mode is ON:
When interleave mode is OFF:
400 V (DC+ACpeak) (282 Vrms CAT II)
±1 V
±100 V
±(1.5% of 8 div + offset voltage axis accuracy)
±(1% of the setting + 0.2 mV)
±(1% of the setting + 20 mV)
DC to 500 MHz
DC to 400 MHz
DC to 400 MHz [DC to 500 MHz]
DC to 300 MHz [DC to 400 MHz]
5
)
5
)
6 6
, and 100A:1V
2 GS/s
1 GS/s
100 GS/s
4 MW/CH
2 MW/CH
16 MW/CH
8 MW/CH
17
17-1