Linear Technology LT1256 40MHz Video Fader and DC Gain Controlled Amplifier.
The LT1256 are 2-input, 1-output current feedback amplifiers with a linear control
circuit. Typical applications include variable gain amplifiers, filters, mixers and
Choosing LT1251 vs LT1256:
LT1251 includes circuitry that eliminates the need for accurate control signals around
zero and full scale. For control signals of less than 2% or greater than 98%, LT1251
sets one input completely off and the other completely on, eliminating off-channel
feedthrough due to offset or gain errors in the control signals.
The LT1256 does not have this on/off feature and operates linearly over the complete control
range. LT1256 is therefore recommended for applications requiring more than 20dB of linear
Product is available since 09/07/2017
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