Editor’s note: Here’s an oldie but goodie. EDN editors regularly field requests for copies of articles that predate our online archive, but this Design Idea from our Feb 20, 1986, issue has generated ...

Guest columnist Harry Holt, applications engineer at Analog Devices, believes that two into one is a relevant question when designs need more than one operational amplifier. In designs requiring ...

The BD77502FVM ground sense CMOS op amp from Rohm limits output voltage fluctuations to less than ±300 mV with respect to noise. Part of the EMArmour series of noise-tolerant op amps, the BD77502FVM ...

The diverse world of op amps—that basic analog building block—never seems to rest. Despite the availability and need for middle-of-the-road, generic devices, there are always other new ones seeking to ...

Given the countless number of operational-amplifier (op amp) makes and models already on the market, it might seem that there’s little call for yet another one. After all, unlike high-level ...

In the world of audiophilia there are arguments that rage over the relative merits of particular components. Sometimes this can reach silly levels as in the high-end ALPS pot we once saw chosen as a ...

A low power dual op amp from Silego is said to be suited to precision consumer and industrial applications. Called the SLG88101, the part comes in a 2 x 2mm STDFN and is intended for use as a higher ...

Rohm has introduced a tiny nano-power rail-to-rail op-amp for sensor amplification, in a 910 x 800μm WLCSP (wafer-level chip-scale package). TLR1901GXZ, as it will be known, is CMOS and has a maximum ...

Burson’s Soloist Stellar is a $1,500 Class-A headphone amplifier delivering up to 8W of power, a dedicated low-noise IEM stage, and upgradeable op-amps for demanding headphones and sensitive wired ...

The operational amplifier, or op amp, is one of the most basic building blocks used in analog circuits. Ever since single-chip op amps were introduced in the 1960s, thousands of different types have ...