10 | Keysight | M8195A 65 GSa/s Arbitrary Waveform Generator and M8197A Multi-Channel Synchronization Module - Data Sheet
Sample memory modes
Mode
Available with
option
Sample memory
(standard)
Sample memory
(with Opt. 16G)
Max. sample
rate
Interpolation 1
Max. output
frequency 2
Analog BW
(typ) (3 dB)
1 ch, ext.mem.
1 ch, int. mem.
2 ch, ext.mem.
2 ch, int.mem.
4 ch, ext.mem.
4 ch, int.mem.
001, 002, 004
001, 002, 004
002, 004
002, 004
004
2 GSa
16 GSa
65 GSa/s
65 GSa/s
32.5 GSa/s
65 GSa/s
16.25 GSa/s
65 GSa/s
None
None
2 x
> 25 GHz
> 25 GHz
12.8 GHz
> 25 GHz
6.4 GHz
25 GHz
25 GHz
25 GHz
25 GHz
25 GHz
25 GHz
1 MSa
1 MSa
1 GSa per ch.
512 KSa per ch.
0.5 GSa per ch.
256 KSa per ch.
8 GSa per ch.
512 KSa per ch.
4 GSa per ch.
256 KSa per ch.
None
4 x
004
None
> 25 GHz
Frequency switching characteristics
M8195A
Effective frequency switching time3
with Option FSW
38 ps
without Option FSW
> 505 µs
Out 1, 2, 3, 4
M8195A
Output type
Single ended4 or differential
Bandwidth (3 dB, excl. sin(x)/x roll-off)
Rise/fall time5 (20% / 80%)
Impedance
25 GHz (typ)
18 ps (typ)
50 Ω (nom)
Amplitude
75 mVpp to 1.0 Vpp, single-ended into 50 Ω
150 mVpp to 2.0 Vpp, differential
200 µV (nom)
Amplitude resolution
DC amplitude accuracy6
Voltage window
±(2.5% +10 mV) (typ)
-1.0 V to +3.7 V single-ended into 50 Ω
200 µV (nom)
Offset resolution
DC offset accuracy7
± 20 mV (typ)
Differential offset
In system adjustable to 0 mV
-1.0 V to + 3.7 V
Termination voltage window
VOL ≤ 1.5 V: (low level - 500 mV) to (high level +1000 mV)
VOL > 1.5 V: low level to (high level +1000 mV)
Total jitter, with pre-distortion
Random jitter, RMS8
6 ps (pp) at 32 Gb/s PRBS (nom)
200 fs (typ)
1. Interpolation is performed by FIR filters in hardware. For 2x (4x) interpolation, samples are read from
memory at a rate up to 32.5 GSa/s (16.25 GSa/s) and interpolated to a DAC sample rate of up to 65 GSa/s.
For interpolation = none, the sample rate from memory is the same as the DAC sample rate.
2. With default FIR configuration the maximum sample rate is calculated as 80% of Nyquist.
With custom FIR configurations higher output frequencies can be achieved.
3. Effective switching frequency is determined as 1/fmax, with fmax = fSa(max) / 2.5
4. Unused output must be terminated with 50 Ω to GND. In case the termination voltage is not GND, the unused
output must be terminated to VTerm
5. Sample rate 64 GSa/s, output amplitude 500 mVpp(se)
.
.
6. Termination voltage = 0 V; adjusted at 23 °C ambient temperature, amplitude increases by 0.2%/°C (typ) for
ambient temperature below 23 °C.
7. Termination voltage = 0 V.
8. 10 GHz clock; 1 V ampl.; 60 GSa/s.
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