I was concocting a rather silly low-pass filter design, when I remembered that Messrs Sallen and Key did it better in the 1950s, and decided to use their two-pole design to implement a Butterworth filter (thank you also Mr Butterworth). Wonderfully, there are free Sallen and Key Butterworth filter calculators on the web now – I used the one on ...
Rohm is aiming at industrial and consumer applications with a ‘zero-drift’ operational amplifier which scores 9µV and 50nV/°C for its input offset – both maximum figures, which are typically 1µV and 15nV/°C. A first for the company, LMR1002F-LB, as it will be called, has a chopper architecture. Input current is typically 150pA (25°C) with 10pA offset. Both inputs and output are ...
ST has created a dual precision op-amp for automotive sensor signal conditioning, with 20µV input offset voltage and 100nV/°C drift, and operation over 4 to 36V and -40 to 125°C. Input common mode range for TSB182, as it will be known, is from its negative rail to within 2V of its positive rail, and the output is rail-to-rail. Maximum offset ...
Diodes has announced a single-channel version of its automotive-qualified AS2333Q dual precision micro-power op-amp. AS333Q has an 8μV input offset (22μV max 25°C), consumes 17μA, and has “near zero-drift over time and temperature for high-accuracy signal conditioning in automotive electronic control units”, according to the company. It has rail-to-rail inputs and output, with the common-mode range extending 100mV beyond the ...
The OPAx992-Q1 family of 40V rail-to-rail op-amps from Texas Instruments are AEC-Q100 qualified for automotive use. There are single (OPA992-Q1), dual (OPA2992-Q1) and quad (OPA4992-Q1) versions. Intended to be general purpose, the amplifiers’ differential and common-mode input ranges reach the supply rails. 115dB common-mode rejection is claimed, and the devices are rated to be used as comparators as well as ...
Delivering many improved major specs over traditional LM324 op-amps, but with rail-to-rail inputs and outputs, STMicroelectronics has introduced a 6MHz all-rounder op-amp family that will operate from a single 2.7 to 36 V supply as well as from ±1.35 to ±18V dual supplies. TSB511, TSB512, and TSB514 are single, dual and quad op-amps respectively. “This wide voltage range and flexibility ...
Diodes has used post-package trimming to hone a 25μV maximum offset 9.5nV√Hz (1kHz) noise dual op amp with 5.5MHz bandwidth. Called AS2376Q, the device is intended for filtering and control, particularly in automotive applications – it is qualified AEC-Q100 Grade 1 and has automotive-grade supporting PPAPs. Both input and output are rail-to-rail, and operation is over 2.2 to 5.5V (950μA ...
Maxim has quietly released a couple of op-amp families, one very low power and the other blending high speed, precision and low noise. MAX40023 and MAX40024 are single and dual amplifiers that will run from 1.6 to 3.6V, typically for 17μA per channel. A shut-down pin typically takes this to 55nA. Both inputs and outputs swing rail-to-rail and, commensurate with such ...
Looking like a handy thing to use at the front end of circuits in lively voltage environments, Analog Devices has introduced a precision op-amp that can function with up to 70V on its inputs regardless of its own supply rails. Called ADA4098-1, its rail-to-rail input shows a strong Linear Tech legacy, and even carries ‘Over-the-top’ branding. The amplifier can run ...
STMicroelectronics has introduced a dual 5V op amp with 50MHz gain-bandwidth product with low input offset voltage and 6.5nV/√Hz input voltage noise. Called TSV792, the op amp is unity-gain stable and has rail-to-rail inputs and outputs. “The typical 50MHz gain-bandwidth product enables accurate amplification of high-frequency signals,” according to the company. “Adding a slew rate of 30V/µs, the TSV792 is suited ...
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