In title. Is ADUM3053 able to use in UART?
UART standard speed is 38.4kbps.
Can't it use the line speed too slow?
And if it can use HART std, in circuit RL RT must change parameter?
Just to clarify so that we can better assist you,
Is it HART or UART that you wish to use the ADUM3053 with? Your last line in your question says HART.
If you are interested in HART
As Conal mentioned, we recommend users to refer to our AD5700 HART modem. It has been designed especially for HART protocol.
We also have reference circuits (Circuits from the Lab) showing how to interface a microcontroller with a HART modem. These are all mentioned on the product page:
AD5700 datasheet and product info | Low Power HART Modem | HART Modem | Analog Devices
The ADM3053 can operate at very low data rates, even down to DC. The TxD and RxD digital logic pins could in theory be connected to a UART if the ADM3053 was connected point-to-point in non-standard operation (it's intended the ADM3053 is connected to a CAN controller, to allow multi-master bus communication with automatic arbitration).
The ADM3053 is designed for CAN applications, driving a differential voltage across CANH, CANL of ~2V for TxD TTL high and 0V differential for TxD TTL low, common mode voltage of ~2.5V in both cases.
It doesn't seem like this would be compatible with HART, which combines data communication with 4-20 mA loops. So I'm not sure adjusting RL/RT would be sufficient.
Analog Devices have a family of HART modem parts that may be more appropriate for your application:
HART Modem | Interface & Isolation | Analog Devices
I recommend reviewing these parts, and I will ask the application engineer to comment as well. Do you need isolation in the application also? There may be standard digital isolators that would suit for this application.
Thank you for your reply.
My question is UART correct.
It was written with HAUT questions of customer first, but questions came to fix the UART as typo later.
So, delete the previous question, I uploaded again.
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