GENERAL DESCRIPTION
●The AD83301 is a wideband variable gain amplifier for applications requiring a fully differential signal path, low noise, well-defined gain, and moderately low distortion, from dc to 150 MHz. The input pins can also be driven from a single-ended source. The peak differential input is ±2 V, allowing sine wave operation at 1 V rms with generous headroom. The output pins can drive single-sided loads essentially rail-to-rail. The differential output resistance is 150 Ω.
●FEATURES
●Fully differential signal path, also used with single-sided signals
●Inputs from 0.3 mV to 1 V rms, rail-to-rail outputs
●Differential RIN= 1 kΩ; ROUT(each output) 75 Ω
●Automatic offset compensation (optional)
●Linear-in-dB and linear-in-magnitude gain modes
● 0 dB to 50 dB, for 0 V < VDBS< 1.5 V (30 mV/dB)
●Inverted gain mode: 50 dB to 0 dB at −30 mV/dB
●×0.03 to ×10 nominal gain for 15 mV < VMAG< 5 V
●Constant bandwidth: 150 MHz at all gains
●Low noise: 5 nV/√Hz typical at maximum gain
●Low distortion: ≤−62 dBc typical
●Low power: 20 mA typical at VSof 2.7 V to 6 V
●Available in a space-saving, 3 mm × 3 mm LFCSP package
●APPLICATIONS
●Pre-ADC signal conditioning
●75 Ω cable driving adjust
●AGC amplifiers
