This AD630 phase-locked amplifier is an integrated preamplifier OPA627 and 4-order ultra-low-pass Butterworth filter forming a minimum system of phase-locked amplification, which can detect and extract weak signals, but also can be used for AD630 modulation function. Supply voltage: 5V-18V Chip characteristics: Signals can be recovered from 100 dB noise Channel Bandwidth: 2MHz Voltage swing rate: 45V/S Low crosstalk: - 120 dB (1 kHz) Pin programmable, closed-loop gain: 1 and 2 Closed-loop gain accuracy and matching: 0.05% Channel offset voltage: 100V (AD630BD) 350kHz Full Power Bandwidt Colour:Green Material:ABS Package Contents: 1x AD630 Lock-in Amplifier Board Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.