From the Programmable Gain Amplifiers with binary gains, differential input to single-ended output, currently in production, we offer the PGA203, PGA205 and PGA206.
From these devices, the PGA206 offers 5-MHz highest BW. Below is a comparison…
Other Parts Discussed in Thread: PGA206 , PGA280 Hi,
we are using PGA206 on a analog electronic board since 15 years, and we are regard to redesign a new one.
Do you new parts with same quality of PGA206 (Vin up +- 12v) and with a SPI interface ?
Part Number: PGA281 Other Parts Discussed in Thread: PGA280 , PGA206 , INA851 HI TI，
Since PGA281 is out of stock now, it is necessary to find an alternative.
Is there any recommended circuit scheme using operational amplifier or instrument amplifier?
We do not have a direct pin-to-pin replacement for the PGA281. The closest device would be the PGA280 which is currently out of stock. Unfortunately, w e do not offer a reference design to replace PGA281 since this would be a very complex, expensive…
Unfortunately, there is no immediate single IC solution similar to the precision PGA281 for a fully-differential output precision Programmable Gain Amplifier with a higher 130-kHz bandwidth. As you have mentioned, the PGA281 bandwidth is limited…
Attached is a list of precision programmable gain amplifiers that can support outputs up to +/-10V.
As Kai has mentioned, it would be useful to know the DAC that is used on this application, as well as the input amplitude and frequency/settling…
I don't think ISO124 will meet your specifications, as its input noise is 4uV/rtHz, and it has a ±50mV max offset spec - 2x your minimum input signal range.
The closest our PGAs get to a sub-10nV/rtHz noise level would be PGA203…