ADS7867IDBVT_集成电路资料查询网

www.德州仪器.com
规格,ads7868
ADS7866
ADS7867
ADS7868
SLAS465–JUNE2005
At–40
°
Cto85
°
c,f
样本
=280KSPSandf
SCLK
=3.4mhzif1.6v
≤
V
DD
≤
3.6v;f
样本
=140KSPSandf
SCLK
=1.7mhzif
1.2v
≤
V
DD
<1.6v(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
SYSTEMPERFORMANCE
Resolution8Bits
Nomissingcodes8Bits
integrallinearity–0.50.5lsb
(1)
differentiallinearity–0.50.5lsb
1.2v
≤
V
DD
<1.6v–0.50.5
Offseterror
(2)
LSB
1.6v
≤
V
DD
≤
3.6v–0.50.5
1.2v
≤
V
DD
<1.6v–0.50.5
Gainerror
(3)
LSB
1.6v
≤
V
DD
≤
3.6v–0.50.5
1.2v
≤
V
DD
<1.6v–11
Totalunadjustederror
(4)
LSB
1.6v
≤
V
DD
≤
3.6v–11
samplingdynamics(seetimingcharacteristicssection)
t
转变
Conversiontimef
SCLK
=3.4mhz,9sclkcycles2.647µs
t
样本
Acquisitiontimef
SCLK
=3.4mhz,1.6v
≤
V
DD
≤
3.6v0.64µs
f
样本
Throughputratef
SCLK
=3.4mhz,1.6v
≤
V
DD
≤
3.6v280ksps
Aperturedelay10ns
Aperturejitter40ps
DYNAMICCHARACTERISTICS
f
样本
=100ksps,f
在
=30khz,1.2v
≤
V
DD
<1.6v49
信号-至-噪音
SINADdB
anddistortion
f
样本
=200ksps,f
在
=30khz,1.6v
≤
V
DD
≤
3.6v4949.4
f
样本
=100ksps,f
在
=30khz,1.2v
≤
V
DD
<1.6v49.4
snrsignal-至-noiseratiodb
f
样本
=200ksps,f
在
=30khz,1.6v
≤
V
DD
≤
3.6v49.8
f
样本
=100ksps,f
在
=30khz,1.2v
≤
V
DD
<1.6v–65
Totalharmonic
THDdB
扭曲量
(5)
f
样本
=200ksps,f
在
=30khz,1.6v
≤
V
DD
≤
3.6v–72-66
f
样本
=100ksps,f
在
=30khz,1.2v
≤
V
DD
<1.6v67
Spuriousfreedynamic
SFDRdB
范围
f
样本
=200ksps,f
在
=30khz,1.6v
≤
V
DD
≤
3.6v6667
at0.1db,1.2v
≤
V
DD
<1.6v2
at0.1db,1.6v
≤
V
DD
≤
3.6v4
全部-powerbandwidth
(6)
MHz
at3db,1.2v
≤
V
DD
<1.6v3
at3db,1.6v
≤
V
DD
≤
3.6v8
ANALOGINPUT
全部-scaleinputspan
(7)
VIN–GND0V
DD
V
C
S
Inputcapacitance12pF
Inputleakagecurrent–11µA
DIGITALINPUT
logicfamily,cmos
1.2v
≤
V
DD
<1.6v0.7
×
V
DD
3.6
1.6v
≤
V
DD
<1.8v0.7
×
V
DD
3.6
V
IH
InputlogichighlevelV
1.8v
≤
V
DD
<2.5v0.7
×
V
DD
3.6
2.5v
≤
V
DD
≤
3.6v23.6
(1)lsb=leastsignificantbit
(2)thedifferenceinthefirstcodetransition000...000to000...001fromtheidealvalueofgnd+1lsb.
(3)thedifferenceinthelastcodetransition011...111to111...111fromtheidealvalueofv
DD
-1lsbwiththeoffseterrorremoved.
(4)theabsolutedifferencefromtheidealtransferfunctionoftheconverter.thisspecificationissimilartoinlerrorexcepttheeffectsof
offseterrorandgainerrorareincluded.
(5)the2ndthrough10thharmonicsareusedtodeterminethd.
(6)inputfrequencywheretheamplitudeofthedigitizedsignalhasdecreasedby0.1dbor3db.
(7)idealinputspanwhichdoesnotincludegainoroffseterrors.
7

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www.德州仪器.com 规格,ads7868 ADS7866 ADS7867 ADS7868 SLAS465–JUNE2005 At–40 ° Cto85 ° c,f 样本 =280KSPSandf SCLK =3.4mhzif1.6v ≤ V DD ≤ 3.6v;f 样本 =140KSPSandf SCLK =1.7mhzif 1.2v ≤ V DD <1.6v(unlessotherwisenoted) PARAMETERTESTCONDITIONSMINTYPMAXUNIT SYSTEMPERFORMANCE Resolution8Bits Nomissingcodes8Bits integrallinearity–0.50.5lsb (1) differentiallinearity–0.50.5lsb 1.2v ≤ V DD <1.6v–0.50.5 Offseterror (2) LSB 1.6v ≤ V DD ≤ 3.6v–0.50.5 1.2v ≤ V DD <1.6v–0.50.5 Gainerror (3) LSB 1.6v ≤ V DD ≤ 3.6v–0.50.5 1.2v ≤ V DD <1.6v–11 Totalunadjustederror (4) LSB 1.6v ≤ V DD ≤ 3.6v–11 samplingdynamics(seetimingcharacteristicssection) t 转变 Conversiontimef SCLK =3.4mhz,9sclkcycles2.647µs t 样本 Acquisitiontimef SCLK =3.4mhz,1.6v ≤ V DD ≤ 3.6v0.64µs f 样本 Throughputratef SCLK =3.4mhz,1.6v ≤ V DD ≤ 3.6v280ksps Aperturedelay10ns Aperturejitter40ps DYNAMICCHARACTERISTICS f 样本 =100ksps,f 在 =30khz,1.2v ≤ V DD <1.6v49 信号-至-噪音 SINADdB anddistortion f 样本 =200ksps,f 在 =30khz,1.6v ≤ V DD ≤ 3.6v4949.4 f 样本 =100ksps,f 在 =30khz,1.2v ≤ V DD <1.6v49.4 snrsignal-至-noiseratiodb f 样本 =200ksps,f 在 =30khz,1.6v ≤ V DD ≤ 3.6v49.8 f 样本 =100ksps,f 在 =30khz,1.2v ≤ V DD <1.6v–65 Totalharmonic THDdB 扭曲量 (5) f 样本 =200ksps,f 在 =30khz,1.6v ≤ V DD ≤ 3.6v–72-66 f 样本 =100ksps,f 在 =30khz,1.2v ≤ V DD <1.6v67 Spuriousfreedynamic SFDRdB 范围 f 样本 =200ksps,f 在 =30khz,1.6v ≤ V DD ≤ 3.6v6667 at0.1db,1.2v ≤ V DD <1.6v2 at0.1db,1.6v ≤ V DD ≤ 3.6v4 全部-powerbandwidth (6) MHz at3db,1.2v ≤ V DD <1.6v3 at3db,1.6v ≤ V DD ≤ 3.6v8 ANALOGINPUT 全部-scaleinputspan (7) VIN–GND0V DD V C S Inputcapacitance12pF Inputleakagecurrent–11µA DIGITALINPUT logicfamily,cmos 1.2v ≤ V DD <1.6v0.7 × V DD 3.6 1.6v ≤ V DD <1.8v0.7 × V DD 3.6 V IH InputlogichighlevelV 1.8v ≤ V DD <2.5v0.7 × V DD 3.6 2.5v ≤ V DD ≤ 3.6v23.6 (1)lsb=leastsignificantbit (2)thedifferenceinthefirstcodetransition000...000to000...001fromtheidealvalueofgnd+1lsb. (3)thedifferenceinthelastcodetransition011...111to111...111fromtheidealvalueofv DD -1lsbwiththeoffseterrorremoved. (4)theabsolutedifferencefromtheidealtransferfunctionoftheconverter.thisspecificationissimilartoinlerrorexcepttheeffectsof offseterrorandgainerrorareincluded. (5)the2ndthrough10thharmonicsareusedtodeterminethd. (6)inputfrequencywheretheamplitudeofthedigitizedsignalhasdecreasedby0.1dbor3db. (7)idealinputspanwhichdoesnotincludegainoroffseterrors. 7

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