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Precision Instrumentation Amplifier — AD620 Module
The AD620 Signal Amplifier Module is a low-noise instrumentation amplifier designed to amplify tiny microvolt and millivolt signals — the kind produced by strain gauges, thermocouples, load cells, biomedical sensors (ECG/EMG), and other precision measurement devices. Unlike audio amplifiers, this module is built for DC and low-frequency signal conditioning.
This is not an audio amplifier. The AD620 is a precision instrumentation amplifier for sensor signal conditioning. Looking for audio? See our audio amplifier modules.
Why choose it
- High gain accuracy: Gain set by a single external resistor
- Low noise: 9 nV/√Hz — ideal for microvolt-level signals
- High CMRR: Excellent common-mode rejection for noisy environments
- Low power: Only 1.3 mA max supply current
Technical specifications
| Chip | AD620 (Analog Devices) |
|---|---|
| Type | Instrumentation amplifier |
| Input Noise | 9 nV/√Hz |
| CMRR | 100 dB minimum |
| Gain Range | 1 to 10,000 (set by single resistor) |
| Supply | ±2.3V to ±18V |
Frequently Asked Questions
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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