Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Design of pseudo-resitor

Status
Not open for further replies.
A

andhov

Newbie level 6
Newbie level 6
Joined
Mar 3, 2009
Messages
11
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
1,344
Hi Gangs,

I need a solution to design a pseudo resistor. So I mean is there any solution about a design which is operate as resistor with 1teraohm resistance.

Thanks...
 

Bootstrapping is one solution. Another technique used in feedback amplifiers is to use a T feedback network. It depends on what you are doing with the resistor - what the circuit is.

Keith
 

I gonna use "pseudo-resistor" in filter design with low cut off frequency...for IC implementing...
 

In principle, you can use an OTA with 100% negative feedback as a resistor (one-sided grounded). The resistance is 1/gm (gm=transconductance). However, 1 terrra-Ohm seems to be rather problematic.
 

What frequency are you designing for? How many poles? Digital filtering may make more sense for integration.

Keith.
 

Try a MOS transistor biased in subthreshold region.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top