Integrated Circuit - SSI2161, Single VCA, Sound Semiconductor

$3^.89

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A very high performance single-channel VCA for the most demanding applications, the
ProCircuit™ SSI2161 offers industry-leading lowest-noise, and a mode control to optimize noise vs. distortion performance. All at low-cost and in a 10-lead SSOP package.

The SSI2161 is a versatile VCA building block for high-performance audio applications. A single channel provides voltage control of current-mode inputs and outputs for a gain range from +20dB to –100dB, with control provided by a ground-referenced –33mV/dB constant.

The device offers considerable flexibility for a wide range of design goals and applications. A unique mode control allows selection of Class A, Class AB, or in-between using a single resistor. In addition, improved current handling allows use of lower value input resistors for reduced output noise without loss of headroom. Finally, the VCA can be used as a high-quality OTA building block for a variety of applications such as voltage controlled filters, exponential generators, and antilog converters.

The SSI2161 will operate on supplies as low as +8V for battery-powered devices such as guitar pedals, or up to ±18V in systems where maximum headroom is desired.

The SSI2161 is part of a family of affordable high-performance VCA’s from Sound Semiconductor. The SSI2164 offers four VCA’s in a compact SOP package with lowest cost-per VCA, and the SI2162 provides two channels in a small PCB footprint. For the dual version, see P-Q-SSI2162. For the quad version, see P-Q-SSI2164.

Features:

Our Highest Performance VCA in a Compact Package
Pin-Selectable Class A or AB Operation
6dB Lower Noise than SSI2164
126dB Dynamic Range (Class AB)
Low Distortion – Typical 0.025% (Class A)
Large Gain Range: -100dB to +20dB
Highly-Compact 10-Lead SSOP Package
±4V to ±18V Operation
No External Trimming
Low Control Feedthrough – Typically -60dB

P-Q-SSI2161

Item ID:

044441

UPC/EAN:

841358114885

Sound Semiconductor Part Number:

SSI2161

Brand:

Sound Semiconductor

Package:

Sections:

Type:

Class AB Output Noise (R_IN/OUT = 1.8kΩ)			-107 dBu
Class AB Output Noise (R_IN/OUT = 3.74kΩ)			-105 dBu
Class AB Output Noise (R_IN/OUT = 5kΩ)			-102 dBu
Class AB Output Noise (R_IN/OUT = 7.5kΩ			-99 dBu
Class AB Total Harmonic Distortion (A_V = +20dB)			0.20 %
Class AB Total Harmonic Distortion (A_V = -20dB)			0.045 %
Class AB Total Harmonic Distortion (A_V = 0dB)			0.05 %
Class AB Total Harmonic Distortion (A_V = 0dB, V_IN = –17dBu)			0.025 %
Class A Output Noise (R_IN/OUT = 1.8kΩ)			-99 dBu
Class A Output Noise (R_IN/OUT = 3.74kΩ)			-93 dBu
Class A Output Noise (R_IN/OUT = 5kΩ)			-90 dBu
Class A Output Noise (R_IN/OUT = 7.5kΩ)			-87 dBu
Class A Total Harmonic Distortion (A_V = +20dB)			0.17 %
Class A Total Harmonic Distortion (A_V = -20dB)			0.025 %
Class A Total Harmonic Distortion (A_V = 0dB)			0.025 %
Class A Total Harmonic Distortion (A_V = 0dB, V_IN = –5dBu)			0.015 %
Control Pin Max. Voltage (Pin 4)			V- to V+
Control Port - Control Feedthrough (A_V = 0dB to –40dB)			-60 dB
Control Port - Gain Accuracy (A_V = +20dB)			±0.55 dB
Control Port - Gain Accuracy (A_V = -20dB)			±0.55 dB
Control Port - Gain Accuracy (A_V = 0dB)			±0.30 dB
Control Port - Gain Constant (After 60 seconds of operation)			-33 mV/dB
Control Port - Gain Constant Temp. Coefficient			-3300 ppm/°C
Control Port - Max. Input Impedance			2.75 kΩ
Control Port - Maximum Attenuation			-100 dB
Control Port - Maximum Gain			+20 dB
Control Port - Min. Input Impedance			2.25 kΩ
Control Port - Typ. Input Impedance			2.5 kΩ
Headroom (1% THD)			+22 dBu
Max. Lead Temperature (Soldering, 10 sec)			260°C
Max. Mode Current (I_M; Pin 1 to Pin 10 via R_M)			2.0 mA
Max. Operating Temperature Range			-40°C to +85°C
Max. Storage Temperature Range			-65°C to +150°C
Max. Supply Current (Class AB, V_C = GND)			±8 mA
Max. Supply Voltage			±20 V
Max. Supply Voltage Range			±18 V
Min. Supply Voltage Range			±4 V
Power Supply Rejection Ratio (60Hz)			90 dB
Signal Input - Input Bias Current			±10 Na
Signal Input - Input Current Handling			3.4 mA_P
Signal Output - Output Compliance			±100 mV
Signal Output - Output Offset Current (V_IN = GND)			±150 nA
Slew Rate			700 µA/µs
Supply Current (Class A, V_C = GND, I_M = 1mA)			±8 mA
Typ. Supply Current (Class AB, V_C = GND)			±6 mA
Unity Gain Bandwidth (C_F = 10pF)			500 kHz