Analog Devices AD734

15 discussions on ElectronDepot about the Analog Devices AD734: what owners asked, what went wrong, and what fixed it.

What owners report

DDS wisdom

Hi, all, I have a gig coming in that will have me revisiting my thesis research from nearly 30 years ago, on interferometric laser microscopes. (Fun.) Back in the day, I made a nulling-type phase digitizer at 60 MHz by driving a phase...

Single transistor mixer

I need to make a mixer (a multiplier, not an adder) for sinusoid signals somewhere between about 10 kHz and 1 Mhz. This is for a lock-in-amp. My main constraint is low cost. I'd use a microcontroller with an A to D and a hardware...

1/x function with op amps or multiplier or something else...

Hello, I'm trying to figure out the best way to go about making a -1/x function in hardware. From googling around I see 2 methods, 1. Inverting log -> Anti-log 2. OpAmp with multiplier in the feedback loop I have +/-5V rails available, and...

LTspice subckt model for AD734

I picked up the macromodel from AD(TI) for this IC. I=20am using the manual to try to figure out how to=20incorporate the model in a circuit idea, but i hit up=20against errors. This one has me baffled though. =20The error i am getting...

Funny Call of the Day

Funny Call of the DayGot a call this afternoon from a manager at ON Semi, saying they stillmade several of my chip designs (I left 41 years ago :-)He said they have no one on staff that knows how any of them work ;-) He asked if he could...

Defect in Analog Devices Spice model for the AD734

I've been using the Analog Devices Spice model in LTSpice to model the AD73 4 running with a current output - see Figure 25 on page 13 of the Rev E AD 734 data sheet f When running a roughly 15kHz sine wave through the device, the...

All discussions