2181BS08-U

2181BS08-U is a Blackmer® trimmable IC (voltage-controlled amplifier). This integrated-circuit voltage-controlled amplifier (VCA) is a very high-performance current-in/current-out device with two opposing-polarity, voltage-sensitive control ports. It offers wide-range exponential control of gain and attenuation with low signal distortion. The part is selected after packaging based primarily on after-trim THD and control-voltage feedthrough performance. The VCA design takes advantage of a fully complementary dielectric isolation process which offers closely matched NPN/PNP pairs. This delivers performance unobtainable through any conventional process, integrated or discrete. It is used in applications such as faders, panners, compressors, expanders, equalizers, filters, oscillators, and automation systems.

• Dual gain-control ports (pos/neg)
• Supply current is 2.4mA typical
• Equivalent input bias current is 2nA typical
• Input offset voltage is ±5mV typical
• Gain-control tempCo is +0.33%/°C typical at (ref TCHIP = 27°C)
• Output noise is -98dBV typical at (20Hz ~ 20KHz, Rout = 20Kohm, 0dB gain)
• Total harmonic distortion is 0.004% typical at (1KHz, VIN = 0dBV, 0dB gain)
• Slew rate is 12V/µs typical at (RIN = ROUT = 20Kohm)
• Gain-control linearity is 0.5% typical at (-60 to +40dB gain)
• Operating temperature range from 0°C to +70°C, 8-pin plastic SO package