6-1
IM DLM4038-03EN
Specifications
1
2
3
4
5
6
App
Index
Chapter 6 Specifications
6.1 Signal Input Section
Analog Signal Input
Item
Specifications
Number of input channels
8 (CH1 to CH8)
Input coupling settings
AC1MΩ, DC1MΩ, DC50Ω, GND
Input connector
BNC connector
Input impedance
1 MΩ ± 1.0%, approx. 20 pF
50 Ω ±1.0% (VSWR1.4 or less at DC to 500 MHz)
Selectable voltage
sensitivity range
(vertical scale)
1 MΩ input:
2 mV/div to 10 V/div (in 1-2-5 steps)
50 Ω input:
2 mV/div to 500 mV/div (in 1-2-5 steps)
Maximum input voltage
1 MΩ input:
150 Vrms (At 100 kHz and higher, the voltage
decreases at 20 dB/decade down to 2.5 Vrms.)
50 Ω input:
5 Vrms or less and 10 Vpeak or less; neither
values may be exceeded.
Selectable maximum DC
offset range
(when the probe attenuation
is set to 1:1)
1 MΩ input
2 mV/div to 50 mV/div:
±1 V
100 mV/div to 500 mV/div:
±10 V
1 V/div to 10 V/div:
±100 V
50 Ω input
2 mV/div to 50 mV/div:
±1 V
100 mV/div to 500 mV/div:
±5 V
Vertical-axis (voltage-axis)
accuracy
DC accuracy
1
±(1.5% of 8 div + offset voltage accuracy)
Offset voltage accuracy
1
2 mV/div to 50 mV/div:
±(1% of set value + 0.2 mV)
100 mV/div to 500 mV/div:
±(1% of set value + 2 mV)
1 V/div to 10 V/div:
±(1% of set value + 20 mV)
Frequency bandwidth
(≥ –3 dB)
1, 2
(±3 divp-p sine wave input)
1 MΩ input (measured from the probe tip when
using the supplied 10:1 probe (10:1 conversion))
DLM4038
DLM4058
100 V/div to 100 mV/div:
DC to 350 MHz
DC to 500 MHz
50 mV/div to 20 mV/div:
DC to 300 MHz
DC to 400 MHz
50 Ω input
500 mV/div to 10 mV/div:
DC to 350 MHz
DC to 500 MHz
5 mV/div to 2 mV/div:
DC to 300 MHz
DC to 400 MHz
–3 dB point for AC coupling 10 Hz or less (1 Hz or less when using the supplied 10:1 probe)
Skew between channels
(when channels are set
to the same conditions)
1 ns or less
Residual noise level
3
0.4 mVrms or 0.05 div rms, whichever is greater (typical value
4
)
Isolation between channels
(when set to the same
voltage sensitivity)
Maximum bandwidth: –34 dB (typical value
4
)
A/D converter resolution
8 bits (25 LSB/div)
12 bits maximum (during high-resolution mode)
Probe attenuation settings
Voltage probe:
0.001:1 to 2000:1 (in 1-2-5 steps)
Current probe:
0.001A:1V to 2000A:1V (in 1-2-5 steps)
Bandwidth limit
For each channel, can be set to FULL, 200 MHz, 100 MHz, 20 MHz, 10 MHz, 5 MHz, 2 MHz, 1
MHz, 500 kHz, 250 kHz, 125 kHz, 62.5 kHz, 32 kHz, 16 kHz, or 8 kHz.
Uses IIR and FIR digital filters
Maximum sample rate
Real-time sampling mode. Values inside parentheses are for high resolution mode.
2
When interleave mode is on:
2.5 GS/s (1.25 GS/s)
When interleave mode is off:
1.25 GS/s (625 MS/s)
Repetitive sampling mode:
125 GS/s
Interpolation sampling mode:
125 GS/s
