www.德州仪器.com
ADS7886
SLAS492–SEPTEMBER2005
electricalcharacteristics(持续)
+V
DD
=2.35vto5.25v,t
一个
=–40
°
Cto125
°
c,f
(样本)
=1mhz(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
DD
=2.35vto3.6v,f
I
=100khz6971.25
sinadsignal-至-noiseanddistortiondb
V
DD
=4.75vto5.25v,f
I
=100khz7072.25
THDTotalharmonicdistortion
(5)
f
I
=100kHz–84dB
SFDRSpuriousfreedynamicrangef
I
=100khz85.5db
FullpowerbandwidthAt–3dB15MHz
digitalinput/输出
Logicfamily—CMOS
V
IH
高-levelinputvoltagev
DD
=2.35vto5.25vv
DD
–0.45.25v
V
DD
=5v0.8
V
IL
低-levelinputvoltagev
V
DD
=3v0.4
V
OH
高-leveloutputvoltagei
(源)
=200µAV
DD
–0.2
V
V
OL
低-leveloutputvoltagei
(下沉)
=200µa0.4
POWERSUPPLYREQUIREMENTS
+V
DD
supplyvoltage2.353.35.25v
V
DD
=2.35vto3.6v,1-mhz1.31.5
throughput
V
DD
=4.75vto5.25v,1-mhz
1.52
supplycurrent(normalmode)毫安
throughput
V
DD
=2.35vto3.6v,staticstate1.1
V
DD
=4.75vto5.25v,staticstate1.5
SCLKoff1
PowerdownstatesupplycurrentµA
sclkon(20mhz)200
V
DD
=3v3.94.5
powerdissipationat1-mhzthroughputmw
V
DD
=5v7.510
V
DD
=3v3.3
PowerdissipationinstaticstatemW
V
DD
=5v7.5
poweruptime0.1µs
Invalidconversionsafter
1
poweruporreset
(5)calculatedonthefirstnineharmonicsoftheinputfrequency.
4
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