M51911L

MITSUBISHI LINEAR ICs M51911L M51912L 6·STEP BAR TYPE LED LEVEL INDICATOR DESCRIPTION The M51911 L/M51912L is a .semiconductor integrated circuit consisting of a circuit designed for LED level meters. It is capable of bar type display for 6 LEOs according to a input level. AC or DC signal can be inputed because of builtin superior half-wave rectification OP Amp. Output is a cascade connection of a pair of LEOs, so current for display is +half. Display level of the M51911 L is logarithmical scale, 3 , 0,- 3 ,- 7 ,-12,-18dB. The M51912L is a companion. products to the M51911 L, display level is linear scale, 208mV step. FEATURES Built-in superior half-wave rectification OP Amp. Cut off frequency ..................................... 500kHz( typ.) Input offset voltage .. ··· .................................. 2mV( typ.) Output current is decided by internal circuit, so has few external parts." ................... "lo=13mA( typ.) Built-in reference voltage for threshold I....