The AS3080ED is Alfa’s version of the CA3080 IC in an SOIC package. The AS3080ED is a gain block which is the operational-transconductance-amplifier (OTA). The AS3080ED has differential input and a single-ended, push-pull, class A output. Amplifier bias input may be used either for gating or for linear gain control. High output impedance and transconductance (gM) is directly proportional to the amplifier bias current (IABC). Linearizing diodes are provided at the inputs to reduce distortion and allow higher input levels. The result is a 10-dB signal-to-noise improvement referenced to 0.5 percent THD.

The AS3080ED is notable for it’s high slew rate (50V/µs), which makes it especially useful for multiplexer and fast unity-gain voltage followers. It is especially applicable for multiplexer applications because power is consumed only when the devices are in the “ON” channel state.

The AS3080ED is available in an 8-pin SOIC package.

Features

• Maximum offset: < 800 µV
• Slew rate (unity gain, compensated): 50V/µs
• Adjustable power consumption: 10µW to 30µW
• Flexible supply voltage range: ±2V to ±15V
• Fully adjustable gain: 0 to gMRL Limit
• Tight gM spread: 1.6:1
• Extended gM linearity: 4 Decades
• Linearizing diodes

Applications

• Sample and Hold
• Multiplexer
• Voltage Follower
• Multiplier
• Comparator