Dual OTA with 50 V/µs slew — what that buys you
The LM13700MX/NOPB is a dual transconductance amplifier from Texas Instruments in a 16-SOIC surface-mount package. Unlike a standard voltage-output op-amp, the output is a current proportional to the differential input voltage — that current-mode output is what makes it the go-to choice for voltage-controlled amplifiers (VCAs), filters, oscillators, and multiplier stages where you need gain to track a control voltage. The 50 V/µs slew rate and 2 MHz gain-bandwidth product mean it can handle fast modulation signals in audio synthesisers, function generators, or servo-loop compensation without the output slewing into distortion. Each channel draws 2.6 mA from a 10 V to 36 V supply. Input offset is 300 µV typical, input bias current 400 nA, output current 500 µA per channel.
The 16-SOIC package (3.90 mm body width) is a common footprint shared with many dual op-amps and comparators. The tape-and-reel option (Cut Tape also available) suits medium-to-high-volume pick-and-place.