Wideband, > 40dB Adjust Range, Linear In DB VARIABLE GAIN AMPLIFIER

The VCA820 is a dc-coupled, wideband, linear in dB, continuously variable, voltage-controlled gain Amplifier It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (RG) and feedback resistor (RF). The VCA820 internal architecture consists of two input Buffers and an output Current Feedback Amplifier stage integrated with a multiplier core to provide a complete Variable Gain Amplifier (VGA) system that does not require external buffering. The maximum gain is set externally with two resistors, providing flexibility in designs. The maximum gain is intended to be set between +2V/V and +100V/V. Operating from 5V supplies, the gain control voltage for the VCA820 adjusts the gain linearly in dB as the control voltage varies from 0V to +2V. For example, set for a maximum gain of +10V/V, the VCA820 provides 20dB, at +2V input, to 20dB at 0V input of gain control range. The VCA820 offers excellent gain linearity. For a 20dB maximum gain, and a gain-control input voltage varying between 1V and 2V, the gain does not deviate by more than 0.4dB (maximum at +25C). By Texas Instruments
Part Manufacturer Description Datasheet Samples
VCA820IDGSR Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 10-VSSOP -40 to 85
VCA820IDGST Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 10-VSSOP -40 to 85
VCA820IDGSTG4 Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 10-VSSOP -40 to 85
VCA820ID Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 14-SOIC -40 to 85
VCA820IDR Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 14-SOIC -40 to 85
VCA820IDRG4 Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 14-SOIC -40 to 85
VCA820IDG4 Texas Instruments 150MHz BW with linear in dB gain control variable gain amplifier 14-SOIC -40 to 85
VCA820IDGSRG4 Texas Instruments SPECIALTY ANALOG CIRCUIT, PDSO10, GREEN, PLASTIC, MSOP-10
VCA820 's PackagesVCA820 's pdf datasheet
VCA820ID SOIC
VCA820IDGSR MSOP
VCA820IDGST MSOP
VCA820IDR SOIC




VCA820 Pinout, Pinouts
VCA820 pinout,Pin out
This is one package pinout of VCA820,If you need more pinouts please download VCA820's pdf datasheet.

VCA820 Application circuits
VCA820 circuits
This is one application circuit of VCA820,If you need more circuits,please download VCA820's pdf datasheet.


Related Electronics Part Number

Related Keywords:

VCA820 Pb-Free VCA820 Cross Reference VCA820 Schematic VCA820 Distributor
VCA820 Application Notes VCA820 RoHS VCA820 Circuits VCA820 footprint