Q
There is no specification in the datasheet for RXD / CD – what current can
these outputs drive? We want to isolate these signals and now we must select
optocouplers according to the current…
Q
1. Would you be able to advise on using the AD5700 for protocols other than HART? Does the AD5700 simply convert RS-232 to Bell 202 and vice versa, or does it only respond to HART encoded data? 2.…
Q.
Can the AD5700/AD5700-1 support Full Duplex Operation?
----------------------------------------------------------------
A.
HART is, by nature, half duplex. It uses one channel (one pair of wires…
Q
We want to design a 4 channel current loop (4-20mA) receiver with HART. We have identified the AD5700 as usable for the HART interface (Master). Do you have suggestion to how the design should be made…
Q
If i am using your HART modem IC can I use your Manufacturer ID in the HART
code?
A
The manufacturer ID and manufacturers ID codes are assigned by the Hart
Communication Foundation (HCF…
Q
We have a Loop Powered Transmitter with an AD5451 and AD5700 combination (HART), driven by a small microcontroller. All works nearly fine, the DAC (AD5451) has no problem, and also the AD5700 can send…
Q
What is the purpose of the switch on the RTS - HART_OUT line (on datasheet diagram figure 28 and 29) Is it needed?
A
The switch is needed in that position in some cases: If the analog input current…
Q
I am looking at using the DEMO-AD5700D2Z kit (Complete 4 mA to 20 mA Loop
Powered Field Instrument with HART Interface) and want a low cost development
environment for modifying the sample…
Q
I have a customer who has bought one of the Demo-AD5700D2Z He want s to write some software so his Fluke 754 Documenting Process calibrator can communicate with this board. Can he use the Keil Ulink…