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TSV734IPT Folha de dados(PDF) 18 Page - STMicroelectronics

Nome de Peças TSV734IPT
Descrição Electrónicos  High accuracy (200 μV) micropower 60 μA, 900 kHz 5 V CMOS operational amplifiers
PDF  29 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TSV734IPT Folha de dados(HTML) 18 Page - STMicroelectronics

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Application information
TSV731, TSV732, TSV734
18/29
DocID023708 Rev 2
Equation 5
To evaluate the op-amp reliability, a follower stress condition is used where VCC is defined
as a function of the maximum operating voltage and the absolute maximum rating (as
recommended by JEDEC rules).
The Vio drift (in µV) of the product after 1000 h of stress is tracked with parameters at
different measurement conditions (see Equation 6).
Equation 6
The long term drift parameter (ΔVio), estimating the reliability performance of the product, is
obtained using the ratio of the Vio (input offset voltage value) drift over the square root of the
calculated number of months (Equation 7).
Equation 7
where Vio drift is the measured drift value in the specified test conditions after 1000 h stress
duration.
Months
AF 1000 h
×
12 months
24 h
365.25 days
×
()
⁄
×
=
VCC
maxVop with Vicm
VCC 2
⁄
==
ΔVio
Viodrift
months
()
------------------------------
=



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