High Gain Adjust Range, Wideband, Voltage-Controlled Amplifier

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. Excellent common-mode rejection and common-mode input range at the two high-impedance inputs allow the VCA810 to provide a differential receiver operation with gain adjust. The output signal is referenced to ground. Zero differential input voltage gives a 0V output with a small DC offset error. Low input noise voltage ensures good output SNR at the highest gain settings. In applications where pulse edge information is critical, and the VCA810 is being used to equalize varying channel loss, minimal change in group delay over gain setting will retain excellent pulse edge information. An improved output stage provides adequate output current to drive the most demanding loads. While principally intended to drive Analog-to-digital converters (ADCs) or 2nd-stage Amplifiers the 60mA output current will easily drive doubly-terminated 50 lines or a passive post Filter stage over the 1.7V output voltage range. By Texas Instruments
Part Manufacturer Description Datasheet Samples
VCA810AID Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810AIDR Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810AIDRG4 Texas Instruments OP-AMP, 300uV OFFSET-MAX, 35MHz BAND WIDTH, PDSO8, GREEN, PLASTIC, SOIC-8
VCA810IDR Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810ID Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810IDG4 Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810IDRG4 Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810AIDG4 Texas Instruments High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier 8-SOIC -40 to 85
VCA810 's PackagesVCA810 's pdf datasheet
VCA810AID SOIC
VCA810AIDG4 SOIC
VCA810AIDR SOIC
VCA810AIDRG4 SOIC
VCA810ID SOIC
VCA810IDG4 SOIC
VCA810IDR SOIC
VCA810IDRG4 SOIC




VCA810 Pinout, Pinouts
VCA810 pinout,Pin out
This is one package pinout of VCA810,If you need more pinouts please download VCA810's pdf datasheet.

VCA810 Application circuits
VCA810 circuits
This is one application circuit of VCA810,If you need more circuits,please download VCA810's pdf datasheet.


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