About this item

• Exquisite module, excellent magnification performance. The weak detection effect is good.
• APPLICATION SUGGESTIONS: 1, this module is suitable for more than hundred microvolt amplifier. Note that although the official manual gives the largest magnification is 10000 times, but the actual use and cannot reach the value, the different frequency and the size of the input amplification effect may be different from the actual magnification to the influence of the gain bandwidth product and supply voltage.
• Secondly, the internal bias of AD623 is indeed much smaller than that of AD620. When we actually debugged the module, we found that AD623 basically did not need to adjust the bias. The ac is basically symmetric relative to the zero point, but the AD620 needs to adjust the special bias circuit to eliminate the dc component and achieve the effect of zero point symmetry.
• AD623 is better than AD620 in practical use. AD623 can use single power supply, belonging to rail-to-rail operational amplifier, but the power supply range of AD623 (± 6v@) is much smaller than that of AD620(± 18v@), so AD623 is more suitable for integration in low-power and low-voltage applications.
• Finally, the bandwidth of AD623 is different from that of AD620, and the bandwidth of AD620 is slightly wider than that of AD623.