AD8629D703L View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD8629D703L Datasheet PDF : 8 Pages
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AD8629S
TABLE IIB – LIFE TEST/BURN-IN DELTA LIMITS
Table IIB
Parameter
Symbol
Delta
Offset voltage
VOS
±5
Vs = 5.0V, Vcm = 2.5V
Input Bias Current
IB
Vs = 5.0V
±170
Supply Current
ISY
Vs = 5.0V
±116
Units
µV
pA
µA
5.0 Burn-In Life Test, and Radiation
5.1. Burn-In Test Circuit, Life Test Circuit
5.1.1.The test conditions and circuit shall be maintained by the manufacturer under document revision level
control and shall be made available to the preparing or acquiring activity upon request. The test circuit
shall specify the inputs, outputs, biases, and power dissipation, as applicable, in accordance with the
intent specified in method 1015 test condition B of MIL-STD-883.
5.1.2.HTRB is not applicable for this drawing.
5.2. Radiation Exposure Circuit
5.2.1.The radiation exposure circuit shall be maintained by the manufacturer under document revision level
control and shall be made available to the preparing and acquiring activity upon request. Total dose
irradiation testing shall be performed in accordance with MIL-STD-883 method 1019, condition A.
6.0 MIL-PRF-38535 QMLV Exceptions
6.1. Wafer Fabrication
Wafer fabrication occurs at MIL-PRF-38535 QML Class Q certified facility.
6.2. Wafer Lot Acceptance (WLA)
Full WLA per MIL-STD-883 TM 5007 is not available for this product. SEM inspection per MIL-STD-883,
TM2018 is not applicable to the AD8629. The wafer fabrication process is manufactured using planarized
metallization.
7.0 Application Notes
7.1. Functional Description
The AD8629 is a single-supply, ultrahigh precision rail-to-rail input and output operational amplifier. The
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of excessive output voltage errors. The extremely small temperature drift ensures a minimum offset voltage
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sensitive measurement applications in harsh operating environments.
The AD8629 achieves a high degree of precision through a patented combination of auto-zeroing and
chopping. This unique topology allows the AD8629 to maintain its low offset voltage over a wide temperature
range. The AD8629 also optimizes the noise and bandwidth over previous generations of auto-zero
amplifiers, offering the lowest voltage noise of any auto-zero amplifier by more than 50%.
Previous designs used either auto-zeroing or chopping to add precision to the specifications of an amplifier.
Auto-zeroing results in low noise energy at the auto-zeroing frequency, at the expense of higher low
frequency noise due to aliasing of wideband noise into the auto-zeroed frequency band. Chopping results in
lower low frequency noise at the expense of larger noise energy at the chopping frequency. The AD8629 uses
ASD0016529 Rev. E | Page 6 of 8
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