Tranistor or FET recommendation

there is a movement. This output goes to another device whose logic level H= igh Vih is > 1.3V and Low is <0.4V. Any suitable transistor or FET wi= th very low leakage (few uA)current in both On and OFF states and in a smal= l package. Voltage available on board is 1.8V.

A transistor or FET is not appropriate for that application. You want a com= parator such as this :

available from places like Mouser for $0.33. Use the Figure 5 in the data s= heet except change the 220K to 1.0M and the 100K with 120K. The 1.8V VCC pl= ugs in where they show 5V.

n there is a movement. This output goes to another device whose logic level= High Vih is > 1.3V and Low is <0.4V. Any suitable transistor or FET = with very low leakage (few uA)current in both On and OFF states and in a sm= all package. Voltage available on board is 1.8V.

omparator such as this :

sheet except change the 220K to 1.0M and the 100K with 120K. The 1.8V VCC = plugs in where they show 5V.

That's perfect. Thanks.

doesn't need a special transistor:

+1.8 ---+---------+ | | | [1M] | | | +------- out [1M] C / | |/ +------| NPN eg: bc547 | |\ [1M] E \ | | 0V ---+--- | | in ---------------'

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?? 100% natural

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