Logarithmic Multiplying CMOS D/A Converter

AD7111 Controls a Wide Dynamic Gain Range of 88.5dB (26,600) with 8 Bits; For Constant-Percentage-of-Reading Gain Adjustment, Audio Attenuators, etc.

The AD7111 LOGDAC™ is a multiplying d/a converter with linear response to unipolar or bipolar analog (reference) input signals and exponential response to the digital input. In effect, the analog input is attenuated by 0.375 dB/bit of the 8-bit input word. Read full article