Signal Recovery Lock-in Amplifiers

All Signal Recovery Lock-in amplifiers at a glance:

Model input min Freq
(Hz)
max freq (Hz) time constant
(s)
output update rate
(Hz)
V Noise
(nV/√Hz@1 kHz)
Input Impedance
(Ω, F)
Harmonics Interface
5210 1 I/V 0.5 120k 1m-3k 100 5 100M || 25p 2 RS232, GPIB
7124 1 I/V 0.5 150k 10u-10k 1M 5 10M || 30p, 10k || 25p 127 RS232, USB 2.0, LAN
7225 1 I/V 1m 120k 10u-10k 166k / 200 2 / 5 10M || 30p, 10k || 30p 32 RS232, GPIB
7230 1 I/V 1m 120k 10u-10k 1M 2 / 5 10M || 25p, 10k || 25p 127 RS232, USB 2.0, LAN
7230/99 1 I/V 1m 250k 10u-10k 1M 2 / 5 10M || 25p, 10k || 25p 127 RS232, USB 2.0, LAN
7265 1 I/V 1m 250k 10u-10k 166k / 200 2 / 5 10M || 30p, 10k || 30p 65536 RS232, GPIB
7270 1 I/V 1m 250k 10u-10k 1M 2 / 5 10M || 25p, 10k || 25p 127 RS232, USB 2.0, LAN
7280 1 I/V 0.5 2M 1u-10k 7.5M / 1k 5 100M || 25p 32 RS232, GPIB
7210 4-32 V 20 51k 4m-1k 250 <10 10k 2 RS232, GPIB
9210 2-10 V
+1-5 I
DC 10k / 100k (500k) 2u- 1.33M 1.8 / 3.8 / 18 1G / 30G / ~1T 65535 USB 2.0, LAN