Russell McMahon ha scritto:
>> I *hope* that a 24FJ will handle it and the few negative mA. Will check
>> soon :)
> 
>[...] For guaranteed operation pin voltages must be within specified range
> between power rails. Many ICs may run with inputs outside the spec
> sometimes maybe. YMMV and will sometimes. That way lies intermittent
> operation and problems forever.


Table says
AD10 VINH-VINL Full-Scale Input Span VREFL  VREFH V (Note 2)
AD11 VIN Absolute Input Voltage AVSS  0.3  AVDD + 0.3 V
AD12 VINL Absolute VINL Input
Voltage
AVSS  0.3 AVDD/2 V
AD17 RIN Recommended Impedance
of Analog Voltage Source
   2.5K . 10-bit

ok basically :) AGND -0.3

well, will see. not a big issue to place a shottky diode externally. The 
current will be no more than 8V (pp) / 5K (or 10K) (in order tom eet 
impedance requirements) so 500-1.5mA.


thanks again !

-- 

Ciao, Dario
--
Cyberdyne
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