ADL5310
Production
The ADL5310 is a low-cost dual logarithmic amplifier that converts input current over a wide dynamic range to a linear-in-dB output voltage. It is optimized...
Datasheet
ADL5310 on Analog.com
ADL5303
Recommended for New Designs
The ADL5303 is a monolithic logarithmic detector optimized for the measurement of low frequency signal power in fiber
optic systems and offers a large...
Datasheet
ADL5303 on Analog.com
Hi?
Currently, ADL5310 is used for amplifying PD (photodiode) signals.
However, we are trying to use two ADL5303s to reduce the price.
In terms of performance, I would like to ask if there is any difference between using one ADL5310 and two ADL5303.
If ADL5303 is not a replacement for ADL5310, please recommend a replacement part.
Also, can you explain the difference between ADL5310 and ADL5303?
Of course, we will contact you excluding the number of channels.
We ask for your support.
Thank you.
Hi,
I have moved your query to RF and Microwave Community.
Someone here should be able to assist you.
Thanks and regards!
Hello swjung,
Below is how ADL5303 compares to ADL5303:
ADL5303 is wider dynamic range (160 vs 120 dB)
ADL5303 offers PD bias output (ADL5310 does not)
ADL5303 is lower log-linear intercept point (300pA vs 100pA)
ADL5303 is lower Vref (2 vs 2.5V)
ADL5303 is a little less bandwidth
ADL5310 offers log ratio fcn (ADL5303 does not)
ADL5303 requires narrower range of VPOS
We have no other dual log converters at the moment.
-Bruce H.
Sorry about the typo, above. Described spec-by-spec is how ADL5310 and ADL5303 compare.
Also,
If ADL5303 is not a replacement for ADL5310, please recommend a replacement part.
ADL5310 is more like a dual version of the AD8305. Some specs like log-linear intercept are still different, however, between the two.
--Bruce H.
Sorry about the typo, above. Described spec-by-spec is how ADL5310 and ADL5303 compare.
Also,
If ADL5303 is not a replacement for ADL5310, please recommend a replacement part.
ADL5310 is more like a dual version of the AD8305. Some specs like log-linear intercept are still different, however, between the two.
--Bruce H.