Ametek 7230 Instruction Manual page 126

Appendix A, SPECIFICATIONS
Reference Input
Reference Channel
A-2
Current Input
Mode
Full-scale Sensitivity
Low Noise
Wide Bandwidth
Frequency Response (-3dB)
Low Noise
Wide Bandwidth
Impedance
Low Noise
Wide Bandwidth
Noise
Low Noise
Wide Bandwidth
Gain Accuracy
Either Input Mode:
Max. Dynamic Reserve
Line Filter
Grounding
Signal Monitor
Amplitude
Output Impedance
TTL Signal
Frequency Range
Frequency Range
Analog Signal
Impedance
Sinusoidal Input
Level
Frequency Range
Squarewave Input
Level
Frequency Range
Phase Set Resolution
Phase Noise at 100 ms TC, 12 dB/octave slope
Internal Reference
External Reference
Orthogonality
8
Low Noise (10 V/A) or Wide B/W (10
10 fA to 10 nA in a 1-2-5 sequence
10 fA to 1 µA in a 1-2-5 sequence
0.001 Hz  F  500 Hz minimum
0.001 Hz  F  50 kHz minimum
< 2.5 k @ 100 Hz
< 250  @ 1 kHz
13 fA/Hz @ 500 Hz
130 fA/Hz @ 1 kHz
± 2.0% typ, midband
> 100 dB
Filter can be set to attenuate 50/60 Hz,
100/120 Hz, or both frequency bands
BNC shields can be grounded or floated via
1 k to ground
±1 V FS. This is the signal after
preamplification and filtering, immediately prior
to the main ADC
1 k
0.001 Hz to 120 or 250 kHz (Front panel input)
0.001 Hz to 3.0 kHz (Rear panel TRIG IN
input)
1 M // 30 pF
1.0 V rms
0.3 Hz to 120 or 250 kHz
250 mV rms
2 Hz to 120 or 250 kHz
0.001º increments
< 0.0001º rms
< 0.01º rms @ 1 kHz
90º ±0.0001º
6
V/A)