ADC 0808 current capacity

[elexhobby]

Hi Friends,
I am using an ADC for the first time. I’ve got an ADC0808 chip.
I want to test its operation by connecting LEDs to the output. Hence I wanted to know what is its current sourcing or sinking capacity. Is it better to use it to sink current or source current? Or is it the case that it does not have enough current sinking or sourcing capacity & I’ll have to use a buffer.
I referred to the data sheet but couldn’t find the relevant information.
Kindly help.
Thanks in advance

 

[amrstaha]

No don't drive LEDs directly from the Chip. I suggest that you use a scope (if available), a logic probe, or a voltmater. If you insist on LEDs, you should use a buffer. The 7407 will be fine.

Good luck

 

[randika]

using a buffer is safer...

but normal Leds can be driven without any problem. Remember to add a series resister of 100 - 220 ohm in series with the LED.

I've driven Leds with out any problem using this ADC

cya

Randika K