Attenuators, VGAs, Filters

RF VGAs, IF VGAs and variable gain control products from Analog Devices offer the high performance needed for communications, instrumentation, and military designs. The portfolio includes continuous analog linear-in-dB products based on X-Amp™ interpolation architectures and digital step controlled products providing as fine as 0.25 dB step and linear in volts digital control. Furthermore, our RF VGAs are highly integrated with digitally controlled multi-pole analog filters integrated on-chip as well as AGC circuits for automatic level control.

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    Circuits from the Lab

    CN-0140: High Performance, Dual Channel IF Sampling Receiver

    CN-0082: Creating a Constant Envelope Signal Using the ADL5331 RFVGA and AD8319 Log Detector

    CN-0072: Extending the Dynamic Range of the ADL5513 Logarithmic Detector Using the AD8368 Variable Gain Amplifier

    CN-0050: Stable, Closed-Loop Automatic Power Control for RF Applications

    CN-0002: Using the AD8376 VGA to Drive Wide Bandwidth ADCs for High IF AC-Coupled Applications

    RF VGAs Application Notes

    AN-1098: Methodology for Narrow-Band Interface Design Between High Performance Differential Driver Amplifiers and ADCs (pdf, 167 KB)

    AN-0974: Multicarrier TD-SCMA Feasibility (pdf, 634 KB)

    AN-808: Multicarrier CDMA2000 Feasibility (pdf, 1535 KB)
    The goal of this application note is to determine the feasibility of implementing a multicarrier CDMA2000 transceiver and what the major subsystem performances must be.

    AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (pdf, 203 KB)

    AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP) (pdf, 439 KB)

    AN-826: A 2.4 GHz WiMAX Direct Conversion Transmitter (pdf, 417 KB)

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IF VGAs

Part#Gain ControlRF Frquency Range (MHz)Gain Accuracy (dB)Rx Mode IIP3 (dBm)Spectral Noise (nV/rtHz)Gain (min)Gain (max)Noise Figure (dB)Vsupply Pos (min)Max Pos Supply (V)Isupply (typ)US Price 1000-4999
ADRF6518 Analog 650 MHz - 37 - -36 66 - - - 400 mA $11.95
ADL5565Reference Circuit Available Analog 6000 MHz 1 54 1.52 0 15.5 8.7 2.8 5.2 80 mA $3.68
ADL5202Reference Circuit Available Digital 700 MHz - 50 - -11.5 20 7.5 4.5 5.5 210 mA $6.57
ADL5201 Digital 700 MHz - 50 - -11.5 20 7.5 4.5 5.5 110 mA $4.54
ADL5336Reference Circuit Available Analog 1000 MHz 0.1 28 - -14.6 19.5 7.1 4.5 5.5 80 mA $6.57
ADRF6516 Analog 31 MHz 0.2 35 - -5 45 - 3.15 3.45 360 mA $10.30
AD8366 Digital 600 MHz - 38 - 4.5 20.25 11.4 4.75 5.25 180 mA $6.57
ADRF6510Reference Circuit Available Analog 30 MHz - 27 - -5 45 - 4.75 5.25 258 mA $8.99
ADL5562Reference Circuit Available Analog 3300 MHz - 47 2.1 6 15.5 7.3 3 3.6 80 mA $3.68
ADL5561 Analog 2900 MHz - 49 2.1 6 15.5 8 3 3.6 40 mA $3.68
AD8372 Digital 130 MHz 0.3 35 - -9 32 7.9 4.5 5.5 212 mA $6.58
AD8376Reference Circuit Available Digital 700 MHz 0.2 50 2 -4 20 8.7 4.5 5.5 250 mA $6.57
AD8375 Digital 630 MHz 0.2 50 1.9 -4 20 8.3 4.5 5.5 125 mA $4.54
AD8368Reference Circuit Available Analog 800 MHz 0.4 33 - -12 22 9.5 4.5 5.5 60 mA $4.60
AD8370 Digital 750 MHz - 35 2.1 -11 34 7.2 3 5.5 79 mA $4.25
AD8369 Digital 600 MHz 0.5 19.5 2 -5 40 7 3 5.5 37 mA $4.25
AD8367 Analog 500 MHz 0.2 36.5 1.84 -2.5 42.5 6.2 2.7 5.5 26 mA $4.60
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RF VGAs

Part#Gain ControlRF Frquency Range (MHz)Gain (min)Gain (max)Noise Figure (dB)1 dB Comp Point (dBm)Rx Mode IIP3 (dBm)Max Pos Supply (V)Isupply (typ)US Price 1000-4999
ADL5243 Digital 4000 MHz -1.2 31.3 3.1 25.3 40 5.25 175 mA $5.79
ADL5240 Digital 4000 MHz -13.1 18.2 3 17.9 37.5 5.25 93 mA $3.50
ADL5331Reference Circuit Available Analog 1200 MHz -14 17 9 - 47 5.25 240 mA $5.16
ADL5330Reference Circuit Available Analog 3000 MHz 35 23 9 1.3 31.5 5.25 215 mA $5.04
ADL5390 Analog 2400 MHz -30 5 21 8.5 23.3 5.25 135 mA $7.59
AD8341 Analog 2.4 GHz -34.5 -4.5 - 8.5 17.5 5.25 125 mA $7.59
AD8340 Analog 1 GHz -32 -2 - 11 24 5.25 130 mA $7.59
AD45048 - - - 94 - - - - 12 mA -
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VGA Filters

Part#Gain ControlRx Mode IIP3 (dBm)Number of ChannelsRF Frquency Range (MHz)Max Pos Supply (V)Isupply (typ)Supply Voltage (V)Voltage Supply (V)Gain (min)Gain (max)US Price 1000-4999
ADRF6518 - 37 2 650 MHz - 400 mA 3.3 - -36 66 $11.95
ADRF6516 Analog 35 2 31 MHz 3.45 360 mA - - -5 45 $10.30
ADRF6510Reference Circuit Available Analog 27 2 30 MHz 5.25 258 mA 5.25 - -5 45 $8.99
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