Moreover, the common-mode rejection ratio
(CMRR), noise performance and offset can be improved even further by deploying the proposed IA in conjunction with the chopper stabilization technique.
8, the measured common-mode rejection ratios
of all types of the corresponding transfer functions are shown.
The Sherwood amplifier topology is unique in that it combines a complementary topology past the differential pair while still maintaining the high common-mode rejection ratio
of a differential pair with active current mirrors.
Exceptional common-mode rejection ratio
(CMRR) across a broad frequency range
The true-differential function blocks generally feature very high common-mode rejection ratio
, but the complexity of the circuit topology significantly increases -.
It also offers a temperature coefficient of [+ or -]0.05 [micro]V/[degrees]C and a common-mode rejection ratio
of [greater-than]150 dB, The proprietary ISO-Channel[TM] technology provides 1,000-V galvanic isolation channel-to-channel and [+ or -]500 V to earth ground.
The Ampzilla 2000 uses two stages of differential voltage amplification, instead of a single stage, to enhance the common-mode rejection ratio
. In turn, a common-mode voltage must be set at both the first- and second-differential amplifier outputs (add another feedback loop).
A high common-mode rejection ratio
(CMRR) is essential for strain gage amplifiers.
In this method, the common-mode rejection ratio
(CMRR) typically is limited to less than 20 dB (10:1).