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| 型号： | LTC1403ACMSE-1#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 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 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO10 |
| 封装： | LEAD FREE, PLASTIC, MSOP-10 |
| 文件页数： | 5/22页 |
| 文件大小： | 575K |
| 代理商： | LTC1403ACMSE-1#TRPBF |
LTC1403-1/LTC1403A-1
14031fb
applications inFormation
internalreference.Therecommendedrangeforanexternal
referenceis2.55VtoVDD.Anexternalreferenceat2.55V
willseeaDCquiescentloadof0.75mAandasmuchas
3mAduringconversion.
INPUT SPAN VERSUS REFERENCE VOLTAGE
Thedifferentialinputrangehasaunipolarvoltagespan
thatequalsthedifferencebetweenthevoltageattheref-
erencebufferoutputVREFatPin3,andthevoltageatthe
ground(ExposedPadGround).Thedifferentialinputrange
oftheADCis±1.25Vwhenusingtheinternalreference.
TheinternalADCisreferencedtothesetwonodes.This
relationshipalsoholdstruewithanexternalreference.
DIFFERENTIAL INPUTS
The LTC1403-1/LTC1403A-1 have a unique differential
sample-and-holdcircuitthatallowsinputsfromground
toVDD.TheADCwillalwaysconvertthebipolardiffer-
enceofAIN+–AIN–,independentofthecommonmode
voltageattheinputs.Thecommonmoderejectionholds
upatextremelyhighfrequencies,seeFigure4.Theonly
requirementisthatbothinputsnotgobelowgroundor
exceedVDD.Integralnonlinearityerrors(INL)anddiffer-
entialnonlinearityerrors(DNL)arelargelyindependent
ofthecommonmodevoltage.However,theoffseterror
willvary.Thechangeinoffseterroristypicallylessthan
0.1%ofthecommonmodevoltage.
Figure5showstheidealinput/outputcharacteristicsfor
theLTC1403-1/LTC1403A-1.Thecodetransitionsoccur
midway between successive integer LSB values (i.e.,
0.5LSB,1.5LSB,2.5LSB,FS–1.5LSB).Theoutputcode
isnaturalbinarywith1LSB=2.5V/16384=153Vfor
theLTC1403A-1,and1LSB=2.5V/4096=610Vforthe
LTC1403-1.TheLTC1403A-1has1LSBRMSofrandom
whitenoise.Figure6ashowstheLTC1819convertinga
singleendedinputsignaltodifferentialinputsignalsfor
optimumTHDandSFDRperformanceasshowninthe
FFTplot(Figure6b).
Figure 4
CMRR vs Frequency
FREQUENCY (Hz)
100
CMRR
(dB)
0
–20
–40
–60
–80
–100
–120
1k
10k
100k
1M
14031 F04
10M 100M
Figure 5
LTC1403-1/LTC1403A-1 Transfer
Characteristic
INPUT VOLTAGE (V)
2’S
COMPLEMENT
OUTPUT
CODE
14031 F05
011...111
011...110
011...101
100...000
100...001
100...010
FS – 1LSB
–FS
AIN–
LTC1403A-1
AIN+
C1
47pF TO
1000pF
1
R1
51
C3
1F
C5
0.1F
5V
–5V
C4
1F
R5
1k
1.5VCM
R3
499
R4
499
R6
1k
C2
47pF TO
1000pF
R2
51
C6
0.1F
VIN
1.25VP-P
MAX
1403A F06a
–
+
U1
1/2 LT1819
–
+
U2
1/2 LT1819
Figure 6a. The LT1819 Driving the LTC1403A-1 Differentially
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1403AIMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
| LTC1403AIMSE-1#TRPBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
| LTC1403CMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C |
| LTC1403CMSE-1#TRPBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: 0°C to +70°C |
| LTC1403IMSE-1#PBF | Serial 12-Bit, 2.8Msps Sampling ADCs with Shutdown; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1403ACMSEPBF | 制造商:Linear Technology 功能描述:ADC,LTC1403A 14bit 2.8MSPS SPI MSOP |
| LTC1403AHMSE | 制造商:Linear Technology 功能描述:ADC Single SAR 2.8Msps 14-bit Serial 10-Pin MSOP EP |
| LTC1403AHMSE#PBF | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC1403AHMSE#TRPBF | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC1403AIMSE | 功能描述:IC ADC 14BIT 2.8MSPS DIFF 10MSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
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