Hello,
I need to amplify a digital output to switch a SSR.
The SSR has a input of 3-32v dc.
My output is a signal from a dr daq data logger 3.3vdc 1ma.
Can anyone give advice on best method of achieving this?

Much Appreciated.

 

Can you give us the part number of the SSR?

What is the load current through the SSR?

 

Can you give us the part number of the SSR?

What is the load current through the SSR?

The SSR is a Fotek 10 DA-H
input 3-32vdc 4-20ma
output 90-480 vac

i am using the ssr to operate a solinoid 220vac 3.5va

 

Your load (3.5va = 16mA) is pretty small. Why do you want to use a SSR?

Do you require the optical isolation for safety? Maybe the zero-cross capability?

Anyway, the control input already looks TTL compatible. They do not specify the input current at 5V, so it may be prudent to buffer the input with a 7407 open-collector buffer with a pull-up resistor.


Input Data 　 　 　 　 　 　 Operating Voltage 3~32VDC Min. ON / OFF Voltage ON > 2.4V , OFF < 1.0V Trigger Current 7.5mA / 12V Control Method Zero Cross Trigger

 

Your load (3.5va = 16mA) is pretty small. Why do you want to use a SSR?

Do you require the optical isolation for safety? Maybe the zero-cross capability?

Anyway, the control input already looks TTL compatible. They do not specify the input current at 5V, so it may be prudent to buffer the input with a 7407 open-collector buffer with a pull-up resistor.


Input Data 　 　 　 　 　 　 Operating Voltage 3~32VDC Min. ON / OFF Voltage ON > 2.4V , OFF < 1.0V Trigger Current 7.5mA / 12V Control Method Zero Cross Trigger

The reason for the ssr is for safety the soilnoid being operated is 220vac.
I do not have any experience with electronics could you do a quick schematic.