Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation

This AD630 lock-in amplifier is an integrated OPA627 preamplifier and 4th-order ultra low-pass Butterworth filter, forming a set of lock-in amplification of the smallest system that can detect and extract weak signals, but also available Modulation function to AD630. The AD630 is a high-precision balanced modulator with a flexible commutation structure and offers laser laser wafer-adjusted thin film resistors with excellent accuracy and temperature stability. Its signal processing applications include: balanced modulation and demodulation, synchronous detection, phase detection, quadrature detection, phase sensitive detection, lock amplification, and square wave multiplication. In the lock-in amplifier circuit, when it is used as a synchronous demodulator, it can recover weak signals in a 100 dB noise background. The AD630's optimal operating frequency is at 1 kHz. Chip features (1) The signal can be recovered from 100 dB noise (2) Channel bandwidth: 2 MHz (3) Slew rate: 45V/us (4) Crosstalk: -120 dB (1 kHz) (5) Pin-Programmable, Closed-Loop Gain: ±1 and ±2 (6) Closed-loop gain accuracy and matching: 0.05% (7) Channel Offset Voltage: 100 uV (AD630BD) (8) 350 kHz full power bandwidth