Variable Gain Amplifiers (VGA)

Q&A

by Rwolf01 Variable Gain Amplifiers (VGA)

Latest 2 days ago by ianguieb
52 1 0
Not Answered
setting up a low corner for the OFST high-pass filter. 0
Not Answered

I'm trying to understand the reason for setting the HPF filter cap from OFST to CNTR rather than to ground. If Cntr is being driven by a low impedance Vref it shouldn't matter. Since they are both DC. But your data sheet gives other options, like leaving...

Analog Control Variable Gain Amplifiers (VGAs) Datasheet/Specs amplifiers ad8330 Variable Gain Amplifiers (VGA) Show More

52 1 0
by peteh Variable Gain Amplifiers (VGA)

Latest 2 months ago by peteh

172 2 0

Not Answered
Operating limits 0
Not Answered

Hi. The AD604 data only specifies typical supply voltage: ±5V. What are min and max operating limits? Thanks.

Datasheet/Specs amplifiers ad604 Variable Gain Amplifiers (VGA)

172 2 0
by Andy544 Variable Gain Amplifiers (VGA)

Latest 2 months ago by ADIApproved
129 1 0
Not Answered
Reverse Current Protection Not Working 0
Not Answered

I tested the IC by providing 5V to the IN and ON pins. The output is loaded with 400 mA and everything is working. Then I externally drove the output to 5.2 V. Reverse current is flowing through the IC. It gets desaturated. In my opinion, this should...

amplifiers hardware MAX14523A reverse current MAX1452 MAX14523 Variable Gain Amplifiers (VGA) Protection Switches & Controllers Show More

129 1 0
by johntang Variable Gain Amplifiers (VGA)

Latest 2 months ago by ianguieb
193 1 1
Not Answered
Reference design for cascading all 4 channels in an AD8334 amplifier? 0
Not Answered

Hi, A ~80dB VGA circuit that we have been using is literally two AD8331 EVAL circuits connected together, and I'm hoping to replace them with a single AD8334 with all 4 channels tied together to achieve similar result with less components. Is it possible...

amplifiers hardware Variable Gain Amplifiers (VGA) ad8334

193 1 1
by onyuhara Variable Gain Amplifiers (VGA)

Latest 5 months ago by enash
268 1 0
Answered
Inquiry: Dynamic Envelope Shaping of a 350MHz Carrier using AD8367 V_gain Control 0
Answered

Hello, I am designing a system to perform dynamic envelope shaping of an AM-modulated signal using the AD8367 in VGA mode. I would like to verify the feasibility of the following operation: [Operational Scenario] Input Signal: A 350MHz carrier...

Analog Control Variable Gain Amplifiers (VGAs) Datasheet/Specs ad8367 Variable Gain Amplifiers (VGA)

268 1 0
by govish87 Variable Gain Amplifiers (VGA)

Latest 5 months ago by govish87

455 7 0

Answered
Unusually High Output Offset Voltage in AD8337 LTSPICE Model 0
Answered

I'm planning on using the AD8337 VGA for a new design. When simulating the part, however, I noticed unexpectedly high output offset voltage present, seeming to disagree with quoted datasheet specifications. The output offset voltage seems to be 50mV higher...

Analog Control Variable Gain Amplifiers (VGAs) Datasheet/Specs vga spice LTspice ad8337 datasheet Variable Gain Amplifiers (VGA) Show More

455 7 0
by guimpt Variable Gain Amplifiers (VGA)

Latest 6 months ago by ADIApproved
357 3 0
Answered
AD8338 stability issues 0
Answered

Hello, We are seeing a stability issue with the AD8338 VGA and would appreciate some guidance. We are trying to amplify a ~500kHz signal from an antenna, the following is the circuit we are using: (output is loaded by 2x470Ω resistors, oscillation...

Analog Control Variable Gain Amplifiers (VGAs) hardware vga stability Variable Gain Amplifiers (VGA) ad8338 Show More

357 3 0
by Pushkar Variable Gain Amplifiers (VGA)

Latest 6 months ago by enash
268 1 0
Answered
Part number check 0
Answered

ADL6337ACRZB, is this the correct part number for this ADL6337-B? And what does this R7 mean in ADL6337ACRZB-R7

amplifiers hardware ADL6337-B Digital Control VGAs ADL6337 Variable Gain Amplifiers (VGA) Show More

268 1 0
by Egecan Variable Gain Amplifiers (VGA)

Latest 7 months ago by ADIApproved
286 2 0
Not Answered
AD8338 AGC Oscillation +1
Not Answered

Hello! Below is the AGC circuit I designed for an AC coupled square wave input. I am using single-ended input thus connected INMR to the ground through C1. COMM and MODE are grounded. I have a bypass capacitor at VBAT and VAGC as well. I have tested...

Analog Control Variable Gain Amplifiers (VGAs) hardware ad8338 agc Variable Gain Amplifiers (VGA) AD8338 no output ad8338 Show More

286 2 0
by AkiraO Variable Gain Amplifiers (VGA)

Latest 7 months ago by AkiraO

231 2 0

Answered
Request of Gerber File for EVAL-AD8336 0
Answered

Hello, Could you please provide me the design files or Gerber file of EVAL-AD8336? Best Regards, Akira

Analog Control Variable Gain Amplifiers (VGAs) hardware ad8336 Variable Gain Amplifiers (VGA)

231 2 0
by JayeshU Variable Gain Amplifiers (VGA)

Latest 7 months ago by ADIApproved
410 4 0
Answered
AD8338 VGA Mode, no output 0
Answered

This is regarding AD8338 I am using in VGA mode. The gain voltage set to 0.8 Volt. I am giving single input and taking single output. Deto pin Grounded. 0.1uF Capacitor connected between VREF and OFSN pins. 4.7V Power supply is given to the circuit. ...

Analog Control Variable Gain Amplifiers (VGAs) hardware vga Variable Gain Amplifiers (VGA) AD8338 no output ad8338 Show More

410 4 0
by Akshay1992 Variable Gain Amplifiers (VGA)

Latest 7 months ago by ADIApproved
231 1 0
Answered
AD8338 VGA Mode no output 0
Answered

I am using AD8338 in VGA Mode. The given input is 10 kHz - 300 kHz, -40 dBm. Operating this circuit on DC 4.7V. When the Gain voltage is set to 0.8V, there is no output. The output came only after reducing the Gain voltage nearly 0.6V, which gives less...

Analog Control Variable Gain Amplifiers (VGAs) hardware vga amplifier Variable Gain Amplifiers (VGA) ad8338 Show More

231 1 0
by PARTH0076 Variable Gain Amplifiers (VGA)

Latest 10 months ago by PARTH0076

900 4 0

Answered
AD8330 LTspice simulation error 0
Answered

I am trying to build an AGC circuit with DC servo loop to keep my output AC signal around 0V. While simulating I get two errors 1- "Node U1:N662042 is floating and connected to current source G:U1:_G2" 2- Fatal Error: Analysis: Time step too small;...

Analog Control Variable Gain Amplifiers (VGAs) ANALOG DEVICES VGA hardware vga ad8330 Variable Gain Amplifiers (VGA) Show More

900 4 0
by josei Variable Gain Amplifiers (VGA)

Latest 11 months ago by john-lazzaro

305 1 0

Answered
Fabrication process 0
Answered

Is the AD8336 fabricated using a SiGe bipolar process?

Analog Control Variable Gain Amplifiers (VGAs) hardware ad8336 Variable Gain Amplifiers (VGA) SiGe Show More

305 1 0
by BDE Variable Gain Amplifiers (VGA)

Latest 11 months ago by ADIApproved
305 1 0
Answered
SPICE model of LTC6910-2 0
Answered

Hi, I am looking for spice model of LTC6910-2 to be included in one of my simulations which is in PSpice for TI. I have located the .sub file for LTC6910-2 but I am unable to import it because of its encryption. It would really be helpful to share the...

Programmable Gain Amplifiers simulation LTC6910-2 hardware LTC6910 model Variable Gain Amplifiers (VGA) pspice Show More

305 1 0

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Q&A

Not Answered
setting up a low corner for the OFST high-pass filter. 0
Not Answered

Not Answered
Operating limits 0
Not Answered

Not Answered
Reverse Current Protection Not Working 0
Not Answered

Not Answered
Reference design for cascading all 4 channels in an AD8334 amplifier? 0
Not Answered

Answered
Inquiry: Dynamic Envelope Shaping of a 350MHz Carrier using AD8367 V_gain Control 0
Answered

Answered
Unusually High Output Offset Voltage in AD8337 LTSPICE Model 0
Answered

Answered
AD8338 stability issues 0
Answered

Answered
Part number check 0
Answered

Not Answered
AD8338 AGC Oscillation +1
Not Answered

Answered
Request of Gerber File for EVAL-AD8336 0
Answered

Answered
AD8338 VGA Mode, no output 0
Answered

Answered
AD8338 VGA Mode no output 0
Answered

Answered
AD8330 LTspice simulation error 0
Answered

Answered
Fabrication process 0
Answered

Answered
SPICE model of LTC6910-2 0
Answered

Q&A

Not Answered setting up a low corner for the OFST high-pass filter. 0 Not Answered

Not Answered Operating limits 0 Not Answered

Not Answered Reverse Current Protection Not Working 0 Not Answered

Not Answered Reference design for cascading all 4 channels in an AD8334 amplifier? 0 Not Answered

Answered Inquiry: Dynamic Envelope Shaping of a 350MHz Carrier using AD8367 V_gain Control 0 Answered

Answered Unusually High Output Offset Voltage in AD8337 LTSPICE Model 0 Answered

Answered AD8338 stability issues 0 Answered

Answered Part number check 0 Answered

Not Answered AD8338 AGC Oscillation +1 Not Answered

Answered Request of Gerber File for EVAL-AD8336 0 Answered

Answered AD8338 VGA Mode, no output 0 Answered

Answered AD8338 VGA Mode no output 0 Answered

Answered AD8330 LTspice simulation error 0 Answered

Answered Fabrication process 0 Answered

Answered SPICE model of LTC6910-2 0 Answered

Not Answered
setting up a low corner for the OFST high-pass filter. 0
Not Answered

Not Answered
Operating limits 0
Not Answered

Not Answered
Reverse Current Protection Not Working 0
Not Answered

Not Answered
Reference design for cascading all 4 channels in an AD8334 amplifier? 0
Not Answered

Answered
Inquiry: Dynamic Envelope Shaping of a 350MHz Carrier using AD8367 V_gain Control 0
Answered

Answered
Unusually High Output Offset Voltage in AD8337 LTSPICE Model 0
Answered

Answered
AD8338 stability issues 0
Answered

Answered
Part number check 0
Answered

Not Answered
AD8338 AGC Oscillation +1
Not Answered

Answered
Request of Gerber File for EVAL-AD8336 0
Answered

Answered
AD8338 VGA Mode, no output 0
Answered

Answered
AD8338 VGA Mode no output 0
Answered

Answered
AD8330 LTspice simulation error 0
Answered

Answered
Fabrication process 0
Answered

Answered
SPICE model of LTC6910-2 0
Answered