AS3080E ALFA - Operational Transconductance Amplifier (OTA) with linearizing diodes (PDIP-8)

The AS3080E and AS3080EA types are gain blocks which utilize the unique operationaltransconductance-amplifier (OTA). The AS3080E and AS3080EA types have differential input and a single-ended, push-pull, class A output. In addition, these types have an amplifier bias input which may be used either for gating or for linear gain control. These types also have a high output impedance and their 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 AS3080E and AS3080EA types are notable for their excellent slew rate (50V/μs), which makes them especially useful for multiplexer and fast unity-gain voltage followers. These types are especially applicable for multiplexer applications because power is consumed only when the devices are in the “ON” channel state. The AS3080EA’s characteristics are specifically controlled for applications such as sample-hold, gain-control, multiplexing, etc.

- 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:
  CA3080E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2:1
  CA3080EA . . . . . . . . . . . . . . . . . . . . . . . . . . 1,6:1
- extended gM linearity . . . . . . . . . . . . . .4 Decades
- linearizing diodes