www.德州仪器.com
ELECTRICALCHARACTERISTICS
DAC7558
SLAS435–MAY2005
V
DD
=2.7vto5.5v,vref=vdd,r
L
=2k
Ω
tognd;c
L
=200pftognd;allspecifications–40°cto105°c,除非
otherwisespecified
PARAMETERTESTCONDITIONSMINTYPMAXUNITS
STATICPERFORMANCE
(1)
Resolution12Bits
relativeaccuracy±0.35±1lsb
differentialnonlinearityspecifiedmonotonicbydesign±0.08±0.5lsb
Offseterror±12mV
零-scaleerrorallzeroesloadedtodacregister±12mv
GainerrorV
DD
=5v,v
REF
=4.096v±0.15%fsr
全部-scaleerrorv
DD
=5v,v
REF
=4.096v±0.5%fsr
零-scaleerrordrift7µv/°c
gaintemperaturecoefficient3ppmoffsr/°c
PSRRV
DD
=5v0.75mv/v
OUTPUTCHARACTERISTICS
(2)
Outputvoltagerange0VREFV
OutputvoltagesettlingtimeR
L
=2k
Ω
;0pf<c
L
<200pf5µs
slewrate1.8v/µs
CapacitiveloadstabilityR
L
=
∞
470pF
R
L
=2k
Ω
1000
数字的-至-analogglitchimpulse1lsbchangearoundmajorcarry0.1nv-s
频道-至-channelcrosstalk1-khzfull-scalesinewave,–100db
outputsunloaded
digitalfeedthrough0.1nv-s
outputnoisedensity(10-khzoffset120nv/rthz
频率)
TotalharmonicdistortionF
输出
=1khz,f
S
=1msps,bw=20–85db
kHz
DCoutputimpedance1
Ω
短的-circuitcurrentv
DD
=5V50mA
V
DD
=3V20
电源-uptimecomingoutofpower-downmode,15µs
V
DD
=5V
comingoutofpower-downmode,15
V
DD
=3V
REFERENCEINPUT
V
REF
Inputrange0V
DD
V
ReferenceinputimpedanceV
REF
1throughV
REF
4shortedtogether12.5k
Ω
ReferencecurrentV
REF
=V
DD
=5v,400650µa
V
REF
1throughV
REF
4shortedtogether
V
REF
=V
DD
=3v,240425
V
REF
1throughV
REF
4shortedtogether
LOGICINPUTS
(2)
Inputcurrent±1µA
V
在_l
,inputlowvoltageiov
DD
≥
2.7v0.3iov
DD
V
V
在_h
,inputhighvoltageiov
DD
≥
2.7v0.7iov
DD
V
Pincapacitance3pF
(1)linearitytestedusingareducedcoderangeof30to4065;outputunloaded.
(2)specifiedbydesignandcharacterization,notproductiontested.for1.8v<iov
DD
<2.7v,itisrecommendedthatv
IH
=IOV
DD
,v
IL
=
地.
3
: 点此下载
