Electronic Design

Amp/Modulator Address Power Concerns

Promising to reduce power consumption, the AMC1200 isolated amplifier and AMC1204 delta-sigma modulator increase accuracy, temperature stability, and immunity to magnetic fields in equipment such as AC drives, solar inverters and uninterruptible power supplies. The AMC1200 is a 4-kV peak isolated amplifier providing 80% better linearity and gain drift compared to similar devices while reducing power consumption by 50%. The AMC1204 is a 20-MHz, externally-clocked, isolated delta-sigma modulator that provides 40-percent better linearity than comparable devices. Prices for the AMC1200 (10 mm x 7 mm SOIC) and the AMC1204 (10 mm x 10 mm SOIC), respectively, are $2.20 and $3.45 each/1,000. TEXAS INSTRUMENTS INC., Dallas, TX. (800) 477-8924.

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