www.德州仪器.com
规格
DAC7634
SBAS134A–JULY2004–REVISEDAUGUST2004
AtT
一个
=T
最小值
toT
最大值
,v
DD
=V
CC
=5v,v
SS
=0v,v
REF
h=2.5v,andv
REF
l=0v,unlessotherwisenoted
DAC7634EDAC7634EB
PARAMETERTESTCONDITIONSUNIT
MINTYPMAXMINTYPMAX
精度
Linearityerror
(1)
±
3
±
4
±
2
±
3LSB
Linearitymatch
±
4
±
2LSB
Differentiallinearityerror
±
2
±
3
±
1
±
2LSB
monotonicity,t
最小值
toT
最大值
1415Bits
零-scaleerror
±
1
±
2
±
1
±
2mV
零-scaleerrordrift510510ppm/
°
C
全部-scaleerror
±
1
±
2
±
1
±
2mV
全部-scaleerrordrift510510ppm/
°
C
零-scalematchingchannel-至-channelmatching
±
1
±
2
±
1
±
2mV
全部-scalematchingchannel-至-channelmatching
±
1
±
2
±
1
±
2mV
powersupplyrejectionratio(psrr)atfullscale1010010100ppm/v
ANALOGINPUT
Voltageoutput0V
REF
H0V
REF
HV
V
REF
l=0v,v
SS
=0v,
R
L
=10k
Ω
outputcurrent–1.251.25–1.251.25ma
MaximumloadcapacitanceNooscillation500500pF
短的-circuitcurrent
±
30
±
30mA
短的-circuitdurationgndorv
CC
IndefiniteIndefinite
REFERENCEINPUT
V
REF
LV
REF
L
refhighinputvoltagerange2.52.5v
+1.25+1.25
V
REF
HV
REF
H
Reflowinputvoltagerange00V
–1.25–1.25
Refhighinputcurrent250250µA
Reflowinputcurrent–250–250µA
DYNAMICPERFORMANCE
SettlingtimeTo
±
0.003%,2.5-voutputstep810810µs
频道-至-channelcrosstalkseefigure60.50.5lsb
digitalfeedthrough22nv-s
outputnoisevoltagef=10khz6060nv/
√
Hz
7FFF
H
to8000
H
或者
dacglitch4040nv-s
8000
H
to7FFF
H
DIGITALINPUT
V
IH
0.7
×
V
DD
0.7
×
V
DD
V
V
IL
0.3
×
V
DD
0.3
×
V
DD
V
I
IH
±
10
±
10µA
I
IL
±
10
±
10µA
DIGITALOUTPUT
V
OH
I
OH
=–0.8ma3.64.53.64.5v
V
OL
I
OL
=1.6ma0.30.40.30.4v
POWERSUPPLY
V
DD
4.755.05.254.755.05.25v
V
CC
4.755.05.254.755.05.25v
V
SS
000000V
I
CC
1.521.52ma
I
DD
5050µA
power7.5107.510mw
(1)ifv
SS
=0VspecificationappliesatCode0040
H
andaboveduetopossiblenegativezero-scaleerror.
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