CDBE datasheet, CDBE pdf, CDBE data sheet, datasheet, data sheet, pdf, Texas Instruments, CMOS Differential 4-Channel Analog. CDBE ti CDB, CMOS Differential 4-Channel Analog Multiplexer/ demultiplexer With Logic-level Conversion Data sheet acquired from Harris. CDBE from TEXAS INSTRUMENTS >> Specification: Analog Multiplexer /Demultiplexer IC, Dual, Technical Datasheet: CDBE Datasheet.

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Sign up using Email and Password. Dave Guenther 1 There are two things happening that don’t make sense to me when I test this same circuit: I datasheet off with both A and B grounded.

Please let me know if something about this seems incorrect or is I just flat out misinterpreted the use of this chip.

CMOS Differential 4-Channel Analog Multiplexer/Demultiplexer With Logic-Level Conversion

Also see the switching limitations listed by jms. Why is there a voltage difference? It never occurred to me that logic high might be relative to Vdd. I dont know why, maybe it fried? Sign up using Facebook. That is actually where I would expect it to be.

It is most likely implemented with pairs of back to back MOSFETs as the switches, and they have a significant on resistance of ohms or more. I reviewed another post that references the CD here, but it didn’t discuss the specific issues I was having.

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CDBE Datasheet(PDF) – Harris Corporation

It seems like it should just be similar to an open wire between the two. The DMM measurement reads the value 0. I have hooked up the following circuit just to test the analog switching capability:. While R1 reads 0.

The analog MUX isn’t equivalent to a cd4052ve. Then send 5v signals into the base of each transistor with a series base resistorand the emitter dwtasheet connected to GND. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Sign up or log in Sign up using Google.

The R2, R3 datasheett R4 all read 0v. It is as if the multiplexer isn’t switching between x0, x1, x2 or x3. So at 12v Vdd you may need about a 9v minimum. I have hooked up the following circuit just to test the analog switching capability: For example, it shows that with Vdd at 10v you need at least 7v for a high.

Did I hook up this CD Analog Multiplexer correctly? – Electrical Engineering Stack Exchange

Post as a guest Name. Here is a link to the datasheet.

This resistance adds to the 1 k external resistance and causes the voltage drop you saw. Email Required, but never shown. Home Questions Tags Users Unanswered. The control signals will be inverted from the base input to the collector output connection.

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Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. There are two things happening that don’t make sense to me when I test this same circuit:. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Your input logic to A,B should use the V1 voltage 12v for a high, not 5v. Nedd 4, 6 Upon reading the data sheet this chip seems straight forward, but I’m having the hardest time hooking up the CD If you need to switch the circuit with only 5v logic you can use an NPN transistor for each input, with a resistor on each collector pulled up to dataeheet Vdd level.