Specifications - IBM 7220 Instruction Manual

Dsp lock-in amplifier
Table of Contents

Advertisement

Specifications

Measurement Modes
Displays
Signal Channel
X In-phase
Y Quadrature
R Magnitude
θ
Phase Angle
Noise
Harmonic
Noise
Two LED backlit, two-line, 16-character alphanumeric dot-matrix LCDs giving
digital indication of current instrument set-up and output readings. Edge indicating
analog panel meter. Menu system with dynamic key function allocation.
Voltage Inputs
Modes
Full-scale Sensitivity
Dynamic Reserve
Impedance
FET Device
Bipolar Device
Voltage Noise
FET Device
Bipolar Device
CMRR
Frequency Response
Gain Accuracy
Distortion
Line Filter
Grounding
The unit can simultaneously present any
two of these as outputs
2F or 3F
Measures noise in a given bandwidth centered
on frequency F
A only or Differential (A-B)
20 nV to 1 V in a 1-2-5 sequence
> 100 dB
10 MΩ // 30 pF
10 kΩ // 30 pF
5 nV/√Hz at 1 kHz
2 nV/√Hz at 1 kHz
> 100 dB at 1 kHz degrading by 6 dB/octave
0.001 Hz to 120 kHz
0.5 % typ (full bandwidth)
-90 dB THD (60 dB AC Gain, 1 kHz)
attenuates 50, 60, 100, 120 Hz
BNC shields can be grounded or floated via
1 kΩ to ground
A
Appendix
A-1

Advertisement

Table of Contents
loading

Table of Contents