參數(shù)資料
型號(hào)： LM98640W-MPR
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, CQFP68
封裝： CERAMIC, QFP-68
文件頁(yè)數(shù)： 9/50頁(yè)
文件大?。?/td> 1688K
代理商： LM98640W-MPR
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions. Operation of the device beyond the Operating Ratings is not recommended.
Note 2:
All voltages are measured with respect to VSS = 0V, unless otherwise specified.
Note 3:
When the input voltage (V
IN) at any pin exceeds the power supplies (VIN < VSS or VIN > VDD33), the current at that pin should be limited to 25 mA. The
50 mA maximum package input current rating limits the number of pins that can simultaneously safely exceed the power supplies with an input current of 25 mA
to two.
Note 4:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX, θJA and the ambient temperature, TA. The maximum
allowable power dissipation at any temperature is P
D = (TJMAX – TA)/θJA. The values for maximum power dissipation listed above will be reached only when the
device is operated in a severe fault condition (e.g. when input or output pins are driven beyond the power supply voltages, or the power supply polarity is reversed).
Such conditions should always be avoided.
Note 5:
Human body model is 100 pF capacitor discharged through a 1.5 k
resistor. Machine model is 220 pF discharged through 0.
Note 6:
Reflow temperature profiles are different for lead-free and non-lead-free packages.
Note 7:
The analog inputs are protected as shown below. Input voltage magnitudes beyond the supply rails will not damage the device, provided the current is
limited per note 3. However, input errors will be generated If the input goes above VDD33 and below VSS.
30064771
Note 8:
Typical figures are at T
A = 25°C, and represent most likely parametric norms at the time of product characterization. The typical specifications are not
guaranteed.
Note 9:
Pre and post irradiation are idential to those listed in the “DC” and “AC” Parametric Electrical Characteristics, except that they are tested at room.
Note 10:
This Parameter is guaranteed by design and/or characterization and is not tested.
Note 11:
Dynamic Power Supply Rejection Ratio is performed by injecting a 200mVpp sine wave ac coupled to the analog supply pin. The LM98640's inputs are
left floating in CDS mode and an FFT is captured. The spur guaranteed by the injected signal is recorded.
Note 12:
These parameters are worse case drift. Deltas are performed at room temperature Post OP Life. All other parameters no Deltas are required.
17
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LM98640QML
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