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> VCA810 vca opamp wideband voltage controlled amp (6)
VCA810 vca opamp wideband voltage controlled amp (6)
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
US: $3.75 Canada: $4.50 International: $5.50 Lowest cost option.
2-nd item: S&H 75% less than first (or 25% of first)
item nr 3-5: S&H 80% less than first (or 20% of first)
item nr 6-10: S&H 90% less than first (or 10% of first)
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