Low Current Opto Coupler?
 

Are there any low current OptoCouplers rated (reliably) at somewhere
around 10-25uA, at 70ºC ?

Slo-o-o-o-ow is OK, status indicator only.

G-Job, but you'll like it ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Low Current Opto Coupler?
 

"Jim Thompson" wrote in
message ...
Are there any low current OptoCouplers rated (reliably) at somewhere
around 10-25uA, at 70ºC ?

Slo-o-o-o-ow is OK, status indicator only.

G-Job, but you'll like it ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

6N139 seems to work down to an If of 10ua. At an If = .05ma, Io= 0.15ma
, But the CTR is near zero at that point.

Cheers

Low Current Opto Coupler?
 

"Jim Thompson" wrote in
message ...
Are there any low current OptoCouplers rated (reliably) at somewhere
around 10-25uA, at 70ºC ?

Slo-o-o-o-ow is OK, status indicator only.

G-Job, but you'll like it ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

6N139 seems to work down to an If of 10ua. At an If = .05ma, Io= 0.15ma
, But the CTR is near zero at that point.

Cheers

Low Current Opto Coupler?
 

On Thu, 15 Oct 2009 18:41:03 -0700, Jim Thompson
wrote:

Are there any low current OptoCouplers rated (reliably) at somewhere
around 10-25uA, at 70ºC ?

Slo-o-o-o-ow is OK, status indicator only.

G-Job, but you'll like it ;-)

...Jim Thompson

OPIA411DTU is guaranteed 70% CTR at 50uA-- you could extrapolate for a
G-job. It's a Darlington, so it will be guaranteed to be slow.

You'll need to maybe double the input current from 25°C values for
temperature + aging.