AD630 Phase Lock Detector Weak Signal Conditioning Balanced Modulation Amplifier

Description

AD630 Phase Lock Detector Weak Signal Conditioning Balanced Modulation Amplifier Module
Description
Overview
The AD630 is a balanced modem with a high dynamic range. When configured as a lock-in amplifier, the AD630 can recover small signals from l00dB of interfering noise. Its internal phase-sensitive detector is based on a switch-multiplied architecture. To ensure its operation The accuracy and stability of the internal resistance are preclude the use of high-precision SiCr film resistors, the internal integrated compensation capacitor, only need to connect the chip pin to work stable in the closed-loop gain. The integrated resistor network within the chip can be configured to ± 1 and ± 2 precision closed-loop gain. You can also preclude the use of external feedback resistor method to achieve the special requirements of the function.
Second, the characteristics
1. Can recover from 100 dB noise signal
2. Bandwidth: 2 MHz channel bandwidth
3. Slew rate: 45 V / us
4. Low crosstalk: -120 dB at 1 kHz and -100 dB at 10 kHz
5. Gain: Pin-programmable, closed-loop gain of ± 1 and ± 2
6. Bandwidth: 350 kHz full power bandwidth
Gain accuracy: 0.05% closed-loop gain accuracy
Offset voltage: 100μV channel offset voltage
Third, the application
Balanced modulation and demodulation
2. Simultaneous detection
Phase detection
Orthogonal test
5. phase sensitive detection
6. Phase lock amplification
Square wave multiplication
Five, circuit description
1. Lock-in amplifier mode
Connections: M1-B3, M1-B4, M1-B6 (amplified by a buffered amplifier with gain = 1 + R2 / R1)
Disconnect: others
Input: Test signal -> VIN, reference signal (usually square wave) -> REFIN
Output: VOUT -> Valid value of the useful frequency signal in the signal under test
Note:
1) The lock-in amplifier output passes through a fourth-order low-pass filter (cut-off frequency of 0.1Hz), indicating the effective value of the useful frequency signal.
2) To test the signal before passing the low-pass filter, test TP1.
2. Balance modulator mode
Connection: M2-B1, M2-B2, M2-B5 (without direct input through the amplifier)
Disconnect: others
Input: Baseband signal -> VIN, reference signal (usually square wave) -> REFIN
Output: VOUT -> Modulation signal
Note:
1) This mode can also be used as a precision rectifier to input the same signal to both inputs.
2) This mode can also be used as balanced demodulator, VIN input modulation signal, REFIN input carrier signal, VOUT output unfiltered baseband signal, so an external low pass filter is needed to filter low frequency baseband signal.
3. Other instructions
1) The supply voltage is plus or minus 5V to plus or minus 18V
2) The output of the low-pass filter is a DC signal whose magnitude is proportional to the effective value of the signal component of the same frequency as the reference signal in the input signal, that is,
3) low-pass filter, the higher the cut-off frequency, lock-in amplifier lock faster, but the output DC signal error.
Package include
1×
AD630 Phase Lock Detector Weak Signal Conditioning Balanced Modulation Amplifier
Payment
1.We accept PayPal only.
2.All major credit cards are accepted through secure payment processor PayPal.
3.Payment must be received within 7 business days of auction closing.
4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
Shipping
1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
2.Items will be shipped within 1-3 business day when we received payment.
3.Delivery time depends on destination and other factors;
4.International buyers please note:
a.Import duties, taxes and charges are not included in the item price or shipping charges. These charges are buyer’s responsibility. We will try our best to reduce the risk of the custom duties.
b.Please check with your country's customs office to determine what these additional costs will be prior to buying.
Returns policy
1.If the item is not as described or damaged in transportation, please send it back within 7 days upon date of receipt
2.For defective item, we guarantee free exchange or full refund within 30 days from the day of placing order
3.Buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements
4.Items must be unused, in original packaging and include all parts, accessories and packaging
5.When we receive your returned item, we will investigate the situation and consider to offer replacement or refund according to the situation
Terms of sales
1. All the items will be tested before shipping. Buy them with the confidence!
2. We maintain hightest buyer ratings StarStarStarStarStar and 100% customer satisfaction,  Positive Feedback will be much appreciated from you.
3. Any dissatisfaction or problem, please contact us before you leave neutral Neutral feedback rating or negative Negative feedback rating feedback.
Feedback
1.When you received package and like it, kindly comfirm received order and leave a positive feedback with full stars for us. Thank you.
2.Any dissatisfaction or problem, please contact us before you leave neutral Neutral feedback rating or negative Negative feedback rating feedback.