Operator’s manual – Teledyne LeCroy AP034 User Manual
Page 19
Operator’s Manual
922261-00 Rev A
13
The AP034 offset allows you to measure signals up to 2.0 V (1.6 V of offset plus 400 mV of output
signal). With accessory plug-on attenuators, the effective offset is increased, and input signal 0f
20V (÷10) or 40 V (÷20) may be view ed. The peak signal that can be viewed at any equivalent scale
factor is the Input Differential Mode Range plus the offset used. See Adding Offset on the following
page.
When using the AP034 with the ADPPS power supply on oscilloscopes without ProBus interface,
use the following table to select the desired effective volts per division and determine the offset
available.
Table 2, Recommended settings to obtain desired equivalent Volts/Division
Equivalent
Scale Factor
Oscilloscope
Scale Factor
AP034
Attenuation
Common
Mode
Range
Input
Differential
Mode
Range
Max
Offset
Maximum
Observable
Signal with
Offset
Input
Noise
(nV/√Hz)
Typical
2 mV/Div
2 mV/Div
÷1
± 16V
± 8 mV
2
± 1.6 V
± 1.608 V
35
5 mV/Div
5 mV/Div
÷1
± 16 V
± 20 mV
2
± 1.6 V
± 1.620 V
35
10 mV/Div
10 mV/Div
÷1
± 16 V
± 40 mV
2
± 1.6 V
± 1.640 V
35
20 mV/Div
20 mV/Div
÷1
± 16 V
± 80 mV
2
± 1.6 V
± 1.680 V
35
50 mV/Div
50 mV/Div
÷1
± 16 V
± 200 mV
2
± 1.6 V
± 1.800 V
35
100 mV/Div
100 mV/Div
÷1
± 16 V
± 400 mV
3
± 1.6 V
± 2.0 V
35
200 mV/Div
20 mV/Div
÷101
± 42 V
± 800 mV
2
± 16 V
± 16.8 V
350
500 mV/Div
50 mV/Div
÷101
± 42 V
± 2 V
2
± 16 V
± 18 V
350
1 V/Div
100 mV/Div
÷101
± 42 V
± 4 V
3
± 16 V
± 20 V
350
2 V/Div
100 mV/Div
÷201
± 42 V
± 8 V
3
± 32 V
± 40 V
700
1
Attenuation obtained using the external ÷10 or ÷20 attenuator.
2
Input differential mode range displayed is limited by±4 divisions of vertical scale on oscilloscope.
3
Limited by probe output and
±4 divisions of vertical scale on oscilloscope. Oscilloscope OFFSET and
POSITION must be set to zero..