Appendix 8: Specification
Table A-4:  Electrical Characteristics (Com.)
Characteristics
Performance Requirements
NON-STORE Bandwidth (-3  dB)
0° C to +35°  C
5 mV per division to 5 V per division
DC to at least 100 MHz
2 mV per division DC to at least 80 MHz
+35° C to +50°  C
2 mV per division to 5V per division
DC to at least 80 MHz1
Measured with a vertically centered six-division reference 
signal, from a 50 Q source. The source is connected through 
a 50 O coaxial cable terminated in 50 Q at the input connec
tor. The VOLTS/DIV Variable control is in the CAL detent.
BW LIMIT (~3dB) 20 MHz ±10%
AC Coupled Lower Cutoff Frequency
10 Hz or less at -3  dB1
Step Response (NON-STORE Mode)
Rise Time
0° C to +35" C
5 mV per division to 5 V per division
3.5 ns or less.1
2 mV per division 4.4 ns or less.1
+35° Cto +50° C
5 mV per division to 5 V per division
3.9 ns or less.1
2 mV per division
4.4 ns or less.1
Rise time is calculated from:
RiSe  Vme  =
Step Response (STORE Mode)1 
Useful Storage Rise Time 
SAMPLE
Single Trace  Dual Trace (CHOP/ALT)
SEC/DIV setting  x  1,6
__
  SEC/DIV setting  x  1.6 ^
----------
  —zrp,tx----------------------S 6C  
-----------------
‘— FTv--------------------'"S 6
PEAKDET or ACCPEAK with SMOOTH  SEC/DIV setting  x  1.6  SEC/DIV setting  x  1.6
50  25
Rise time is limited to 3.5 ns minimum with derating over 
temperature (see NON-STORE Rise Time).
1 Performance requirement not checked in manual.
A-9
2221A User Manual