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2181 Blackmer® Voltage-Controlled Amplifier ICs

THAT Corporation 2181 Blackmer® Voltage-Controlled Amplifier ICs are high-performance current-in/current-out devices. The ICs feature two opposing polarity, voltage-sensitive control ports, and offer wide-range exponential control of gain and attenuation with low signal distortion. The parts are selected after packaging based primarily on after-trim THD and control-voltage feedthrough performance.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Class	THD plus Noise	Package / Case	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Series	Packaging
	Audio Amplifiers Trimmable VCA SIP-8 2181AL08-U THAT 1: $16.417 541On Order End of Life	Mfr. Part # 2181AL08-U Mouser Part # 887-2181AL08-U End of Life	THAT	Audio Amplifiers Trimmable VCA SIP-8 Learn More about THAT 2181 ics	Datasheet	541On Order	$16.417 $13.364 $11.347 $10.983 View $10.869 $10.231 $10.003 Quote	Min.: 1 Mult.: 1			Class-AB	0.01 %	SIP-8	4 V	18 V	0 C	+ 70 C	Through Hole	2181	Tube
	Audio Amplifiers Trimmable VCA .005% THD 2181AS08-U THAT 1: $13.033 594Expected 2/26/2027 End of Life	Mfr. Part # 2181AS08-U Mouser Part # 887-2181AS08-U End of Life	THAT	Audio Amplifiers Trimmable VCA .005% THD Learn More about THAT 2181 ics	Datasheet	594Expected 2/26/2027	$13.033 $10.948 $9.934 $9.205 View $8.465 $8.248 $8.134 Quote	Min.: 1 Mult.: 1			Class-AB	0.01 %	SOIC-8	4 V	18 V	0 C	+ 70 C	SMD/SMT	2181	Tube
	Audio Amplifiers Trimmable VCA .008% THD 2181BS08-U THAT 1: $9.023 2.391On Order End of Life	Mfr. Part # 2181BS08-U Mouser Part # 887-2181BS08-U End of Life	THAT	Audio Amplifiers Trimmable VCA .008% THD Learn More about THAT 2181 ics	Datasheet	2.391On Order On Order Ship Dates Mfr. #: 2181BS08-U Stock: 0 On Order: 529 Expected 1/8/2027 1.862 Expected 1/29/2027 Factory Lead-Time: 19 Weeks	$9.023 $7.439 $6.631 $6.084 View $5.412 $5.343 $5.241 $5.093	Min.: 1 Mult.: 1			Class-AB	0.02 %	SOIC-8	4 V	18 V	0 C	+ 70 C	SMD/SMT	2181	Tube
	Audio Amplifiers Trimmable VCA .02% THD 2181CS08-U THAT 1: $7.177 695Expected 2/19/2027 End of Life	Mfr. Part # 2181CS08-U Mouser Part # 887-2181CS08-U End of Life	THAT	Audio Amplifiers Trimmable VCA .02% THD Learn More about THAT 2181 ics	Datasheet	695Expected 2/19/2027	$7.177 $5.503 $5.081 $4.614 View $4.398 $4.261 $4.215 $4.158	Min.: 1 Mult.: 1			Class-AB	0.05 %	SOIC-8	4 V	18 V	0 C	+ 70 C	SMD/SMT	2181	Tube
	Audio Amplifiers Trimmable VCA SIP-8 2181CL08-U THAT 1: $8.943 Lead-Time 5 Weeks End of Life	Mfr. Part # 2181CL08-U Mouser Part # 887-2181CL08-U End of Life	THAT	Audio Amplifiers Trimmable VCA SIP-8 Learn More about THAT 2181 ics	Datasheet	Lead-Time 5 Weeks	$8.943 $7.155 $6.072 $5.810 View $5.389 $5.377 $5.218 $4.967	Min.: 1 Mult.: 1			Class-AB	0.05 %	SIP-8	4 V	18 V	0 C	+ 70 C	Through Hole	2181	Tube
	Audio Amplifiers Trimmable VCA SIP-8 2181BL08-U THAT 1: $10.686 N/A End of Life	Mfr. Part # 2181BL08-U Mouser Part # 887-2181BL08-U End of Life	THAT	Audio Amplifiers Trimmable VCA SIP-8 Learn More about THAT 2181 ics	Datasheet	N/A	$10.686 $8.283 $7.667 $7.007 View $6.688 $6.505 $6.323 Quote	Min.: 1 Mult.: 1			Class-AB	0.02 %	SIP-8	4 V	18 V	0 C	+ 70 C	Through Hole	2181	Tube