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High Gain Adjust Range, Wideband, Voltage-Controlled Amplifier ("A" version indicated the High Grade part) Burr-Brown / Texas Instruments. The VCA810 is a DC-coupled, wideband, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended output conversion with a high-impedance gain control input used to vary the gain over a –40dB to +40dB range linear in dB/V. Operating from ±5V supplies, the gain control voltage for the VCA810 will adjust the gain from –40dB at 0V input to +40dB at –2V input. Increasing the control voltage above ground will attenuate the signal path to > 80dB. Signal bandwidth and slew rate remain constant over the entire gain adjust range. This 40dB/V gain control is accurate within ±1.5dB (±0.9dB for High Grade), allowing the gain control voltage in an AGC application to be used as a Received Signal Strength Indicator (RSSI) with ±1.5dB accuracy. HIGH GAIN ADJUST RANGE: +/-40dB DIFFERENTIAL IN/SINGLE-ENDED OUT LOW INPUT NOISE VOLTAGE: 2.4nV/vHz CONSTANT BANDWIDTH vs GAIN: 35MHz HIGH dB/V GAIN LINEARITY: +/-0.3dB LOW OUTPUT DC ERROR: < +/-40mV LOW SUPPLY CURRENT: 24.8mA (max for -40°C to +85°C temperature range) VOLTAGE-TUNABLE ACTIVE FILTERS new parts, in anti-static packaging (this posting is the responsibility of the poster) |
kristymcleod@dfwind.com (Kristy Mcleod) for more information. All emails will be forwarded to the poster's actual email address.
