--- product_id: 149082422 title: "Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation" brand: "taidacent" price: "€ 179.37" currency: EUR in_stock: true reviews_count: 2 category: "Taidacent" url: https://www.desertcart.pt/products/149082422-taidacent-lock-in-amplifier-ad630-module-minimum-system-phase-sensitive store_origin: PT region: Portugal --- # 45 V/μs slew rate 100 dB noise recovery -120 dB crosstalk Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation **Brand:** taidacent **Price:** € 179.37 **Availability:** ✅ In Stock ## Summary > 🔬 Unlock the power of precision: Detect what others miss. ## Quick Answers - **What is this?** Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation by taidacent - **How much does it cost?** € 179.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/149082422-taidacent-lock-in-amplifier-ad630-module-minimum-system-phase-sensitive) ## Best For - taidacent enthusiasts ## Why This Product - Trusted taidacent brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultra-Fast Response:** 45 V/μs slew rate ensures rapid, distortion-free signal processing. - • **Crystal-Clear Isolation:** Achieve near-silent -120 dB crosstalk for pristine channel separation. - • **Flexible Modulation Modes:** Seamlessly switch between phase-locked amplification and balanced modulation to suit your advanced projects. - • **Precision Signal Recovery:** Extract ultra-weak signals buried in 100 dB noise for unmatched clarity. - • **Integrated High-Performance Filter:** 4th-order Butterworth ultra-low pass filter for clean, noise-free outputs. ## Overview The Taidacent AD630 Lock-in Amplifier Module combines a high-precision OPA627 preamplifier with a 4th-order ultra-low pass Butterworth filter to deliver a compact, phase-sensitive detection system. Designed for professionals, it recovers weak signals from up to 100 dB noise, supports a 2 MHz bandwidth, and offers a high slew rate of 45 V/μs with exceptional crosstalk suppression at -120 dB. Ideal for balanced modulation, synchronous detection, and lock-in amplification applications, this module empowers advanced signal conditioning with flexible, pin-programmable gain and stable temperature performance. ## Description Product description Description AD630 lock-in amplifier is an integrated preamplifier OPA627 and 4th-order ultra-low pass Butterworth filter, forming a set of minimum lock-in amplification system, which can detect and extract weak signals, and it can also be used in AD630 The modulation function. Chip selection When AD630 is used as a synchronous demodulator with a lock-in amplifier configuration, it can recover small signals from 100 dB interference noise (see the Lock-in Amplifier Application section). Chip channel bandwidth: 2 MHz, in actual use, it can be used for phase-locked amplification within 100K. AD630 can be regarded as a precision operational amplifier integrating two independent differential input stages and a precision comparator that can be used to select the active front end. The fast response time of this comparator and the high slew rate and fast settling time of linear amplifiers minimize switching distortion. After understanding the principle of phase lock, it can be replaced with an analog switch such as CD4052 when the accuracy is not high. AD630 Lock-in Amplifier 3D-PCB Schematic Note The balance modulation function of the chip is retained under the current design. The phase-locked amplification system is mainly introduced here, and the balance modulation function is not explained in detail. Specific explanation For the preamplifier, we use the OPA627 with low offset, low offset and precision operational amplifier. For the convenience of testing, only the magnification of OPA627 is set to 11 times (amplification of the same phase). In actual application, the resistance can be adjusted according to the signal amplitude to be detected to achieve a larger magnification, G=1+R2/R1.P 6 is the synchronization signal input port. The synchronization signal is required to be a signal with the same frequency and phase with a detection signal. Since the module is powered by positive and negative, the signal input here must also be positive and negative. Here you can input a sine wave, triangle wave or square wave. Because of the internal comparator, it will eventually be converted to a square wave. But the required input amplitude needs to reach 200mvpp or more.D 1 is the sync signal indicator, it will light up when the sync signal is input. When the sync signal frequency is low, you can see that the LED will flash with the sync signal frequency.P 2 is the signal input port for balanced modulation, we will not introduce it here. P3 is the function selection terminal for phase-locked amplification and balanced modulation, and connections 1 and 3 are phase-locked amplification modes. Connections 2 and 3 are balanced modulation functions.I f you choose to weld R9, if you don't weld R99, it will output directly without using the onboard filter. Welding R99, without welding R9, use the on-board filter output. Users can configure the filter parameters according to their needs. The default on-board is that the resistance is 10K, the capacitor is 1uF, and the low-pass cutoff frequency is about 30Hz. Module default phase lock function Modified to balanced modulator If need the balance the modulator It can change the circuit by yourself. The method is shown on the right No.1 Remove R4 (0 ohm resistance), short-circuit or solder R3. Connect 0 ohm resistance No.2 As shown in the figure, connect the mode selection to the left and select the modulation mode No.3 Short R14 Review: works OK for me - This board works as expected for me and having the pre-made board available for order saved me a lot of time doing not-very-interesting prototype construction, and let me get right to the design work. This is not really an electronic beginner project, you should be able to use a datasheet, and know what a lock-in amplifier is and how it works. Review: It's not a product that is ready to use - I must admit to start off, that I am an amateur. I ordered this product for a home science experiment. This type of product (not the specific brand or item) was recommended by a physicist with whom I had a discussion about the experiment. The problem comes in that there are no instructions that can help you determine exactly how to utilize this product with whatever device is planned for connection. I emailed the company and requested detailed information about how I might use this product. I was sent a a schematic of the board and chip. It was not helpful. If I was an expert, this product might be helpful, but without detailed support available, it is not valuable at all. ## Features - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CXMRBTG | | Best Sellers Rank | #100,991 in Electronics ( See Top 100 in Electronics ) #679 in Audio Component Amplifiers | | Brand | Taidacent | | Brand Name | Taidacent | | Customer Reviews | 3.9 out of 5 stars 2 Reviews | | Manufacturer | Taida | | Material | Silicon | | Material Type | Silicon | | Model | AD630 | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Specification Met | FCC | | Unit Count | 1.00 Count | ## Product Details - **Manufacturer:** Taida - **Mounting Type:** Surface Mount - **Brand:** Taidacent - **Number of Channels:** 1 - **Material:** Silicon ## Images ![Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation - Image 1](https://m.media-amazon.com/images/I/51M6RcniLHL.jpg) ## Questions & Answers **Q: Is there a manual for this product?** A: Yes, you can ask for the manual via the Amazon email, and we will send the pdf version to you. **Q: How can I set the low pass filter frequency ? Is it fixed ?** A: It is fixed, low pass 30Hz. ## Customer Reviews ### ⭐⭐⭐⭐⭐ works OK for me *by A***R on July 3, 2024* This board works as expected for me and having the pre-made board available for order saved me a lot of time doing not-very-interesting prototype construction, and let me get right to the design work. This is not really an electronic beginner project, you should be able to use a datasheet, and know what a lock-in amplifier is and how it works. ### ⭐ It's not a product that is ready to use *by R***R on January 13, 2020* I must admit to start off, that I am an amateur. I ordered this product for a home science experiment. This type of product (not the specific brand or item) was recommended by a physicist with whom I had a discussion about the experiment. The problem comes in that there are no instructions that can help you determine exactly how to utilize this product with whatever device is planned for connection. I emailed the company and requested detailed information about how I might use this product. I was sent a a schematic of the board and chip. It was not helpful. If I was an expert, this product might be helpful, but without detailed support available, it is not valuable at all. ## Frequently Bought Together - Taidacent Lock-in Amplifier AD630 Module Minimum System Phase Sensitive Detection Weak Signal Conditioning Balanced Modulation - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/149082422-taidacent-lock-in-amplifier-ad630-module-minimum-system-phase-sensitive](https://www.desertcart.pt/products/149082422-taidacent-lock-in-amplifier-ad630-module-minimum-system-phase-sensitive) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-16*