參數(shù)資料
型號(hào): LTC1403CMSE-1#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C
中文描述: 1-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10
封裝: LEAD FREE, PLASTIC, MSOP-10
文件頁(yè)數(shù): 1/22頁(yè)
文件大?。?/td> 575K
代理商: LTC1403CMSE-1#PBF
LTC1403-1/LTC1403A-1
14031fb
Block Diagram
Features
Description
Serial 12-Bit/14-Bit, 2.8Msps
Sampling ADCs with Shutdown
applications
n
2.8Msps Conversion Rate
n
Low Power Dissipation: 14mW
n
3V Single Supply Operation
n
2.5VInternalBandgapReferencecanbeOverdriven
n
3-WireSerialInterface
n
Sleep(10W)ShutdownMode
n
Nap(3mW)ShutdownMode
n
80dBCommonModeRejection
n
±1.25VBipolarInputRange
n
Tiny10-LeadMSEPackage
n
Communications
n
DataAcquisitionSystems
n
UninterruptedPowerSupplies
n
MultiphaseMotorControl
n
MultiplexedDataAcquisition
TheLTC1403-1/LTC1403A-1are12-bit/14-bit,2.8Msps
serialADCswithdifferentialinputs.Thedevicesdrawonly
4.7mAfromasingle3Vsupplyandcomeinatiny10-lead
MSEpackage.ASleepshutdownfeaturelowerspower
consumptionto10W.Thecombinationofspeed,low
powerandtinypackagemakestheLTC1403-1/LTC1403A-1
suitableforhighspeed,portableapplications.
The80dBcommonmoderejectionallowsuserstoelimi-
nategroundloopsandcommonmodenoisebymeasuring
signalsdifferentiallyfromthesource.
The devices convert –1.25V to 1.25V bipolar inputs
differentially.Theabsolutevoltageswingfor+AINand
–AINextendsfromgroundtothesupplyvoltage.
Theserialinterfacesendsouttheconversionresultsduring
the16clockcyclesfollowingCONV↑forcompatibilitywith
standardserialinterfaces.Iftwoadditionalclockcycles
foracquisitiontimeareallowedafterthedatastreamin
betweenconversions,thefullsamplingrateof2.8Msps
canbeachievedwitha50.4MHzclock.
L
,LT,LTC,LTM,LinearTechnologyandtheLinearlogoareregisteredtrademarksand
SoftSpanisatrademarkofLinearTechnologyCorporation.Allothertrademarksaretheproperty
oftheirrespectiveowners.
14031 TA01a
+
1
2
7
3
4
S & H
GND
EXPOSED PAD
LTC1403A-1
VREF
10F
AIN–
AIN+
14-BIT ADC
3V
10F
14
14-BIT
LA
TCH
8
10
9
THREE-
STATE
SERIAL
OUTPUT
PORT
2.5V
REFERENCE
TIMING
LOGIC
VDD
SDO
CONV
SCK
5
6
11
THD, 2nd and 3rd vs Input
Frequency for Differential Input
Signals
FREQUENCY (MHz)
0.1
–80
THD,
2nd,
3rd
(dB)
–74
–68
–62
–56
1
10
100
14031 TA01b
–86
–92
–98
–104
–50
–44
THD
3rd
2nd
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