CLK
參數(shù)資料
型號： ADS1244EVM
廠商： Texas Instruments
文件頁數(shù)： 18/24頁
文件大?。?/td> 0K
描述： EVALUATION MODULE FOR ADS1244
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
視頻文件： Nuts and Bolts of the Delta-Sigma Converter
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 2
位數(shù)： 24
采樣率（每秒）： 15
數(shù)據(jù)接口： 串行
輸入范圍： 0 ~ 5 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 150mW @ 500kSPS
工作溫度： -40°C ~ 85°C
已用 IC / 零件： ADS1244
已供物品： 板
產(chǎn)品目錄頁面： 889 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： ADS1244IDGSTG4-ND - IC ADC LP CONVERT 24BIT 10-MSOP
ADS1244IDGSRG4-ND - IC ADC LP CONVERT 24BIT 10-MSOP
ADS1244IDGSR-ND - IC ADC LP CONVERT 24BIT 10-MSOP
296-14003-6-ND - IC ADC LP 24-BIT 10-MSOP
296-14003-2-ND - IC ADC LP 24-BIT 10-MSOP
296-14003-1-ND - IC ADC LP 24-BIT 10-MSOP
其它名稱： 296-18359
ADS1244
3
SBAS273
www.ti.com
ELECTRICAL CHARACTERISTICS
All specifications –40
°C to +85°C, AVDD = 5V, DVDD = +3V, f
CLK = 2.4576MHz, and VREF = 2.5V, unless otherwise specified.
ADS1244
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG INPUT
Full-Scale Input Voltage Range
AINP – AINN
±2V
REF
V
Absolute Input Range
AINP, AINN with Respect to GND
GND – 0.1
AVDD + 0.1
V
Differential Input Impedance
fCLK = 2.4576MHz
5
M
SYSTEM PERFORMANCE
Resolution
No Missing Codes
24
Bits
Data Rate
fCLK = 2.4576MHz
15
sps(1)
Integral Nonlinearity (INL)
Differential Input Signal, End Point Fit
±0.0002
±0.0008
% FSR(2)
Offset Error
1
10
ppm of FSR
Offset Error Drift(3)
0.01
ppm of FSR/
°C
Gain Error
0.005
0.02
%
Gain Error Drift(3)
0.5
ppm/
°C
Common-Mode Rejection
at DC
90
130
dB
fCM(4) = 50 ± 1Hz, fCLK = 2.4576MHz
100
dB
fCM = 60 ± 1Hz, fCLK = 2.4576MHz
100
dB
Normal-Mode Rejection
fSIG(5) = 50 ± 1Hz, fCLK = 2.4576MHz
60
dB
fSIG = 60 ± 1Hz, fCLK = 2.4576MHz
70
dB
Input Referred Noise
1
ppm of FSR, rms
Analog Power-Supply Rejection
at DC,
AVDD = 5%
105
dB
Digital Power-Supply Rejection
at DC,
DVDD = 5%
100
dB
VOLTAGE REFERENCE INPUT
Reference Input Voltage (VREF)VREF ≡ VREFP – VREFN
0.5
2.5
AVDD(6)
V
Negative Reference Input (VREFN)
GND – 0.1
VREFP – 0.5
V
Positive Reference Input (VREFP)
VREFN + 0.5
AVDD + 0.1
V
Voltage Reference Impedance
fCLK = 2.4576MHz
1
M
DIGITAL INPUT/OUTPUT
Logic Levels
VIH (CLK, SCLK)
2.1
5.25
V
VIL (CLK, SCLK)
GND
0.9
V
VOH (DRDY/DOUT )IOH = 1mA
2.6
V
VOL (DRDY/DOUT )IOL = 1mA
0.4
V
Input Leakage (CLK, SCLK)
0 < (CLK, SCLK) < DVDD
±10
A
CLK Frequency (fCLK)
6MHz
CLK Duty Cycle
30
70
%
POWER SUPPLY
AVDD
2.5
5.25
V
DVDD
1.8
3.6
V
AVDD Current
Sleep Mode
0.1
1
A
AVDD = 3V
85
A
AVDD = 5V
90
150
A
DVDD Current
Sleep Mode, CLK Stopped
0.1
A
Sleep Mode, 2.4576MHz CLK Running
1.3
5
A
DVDD = 3V
4.5
10
A
Total Power Dissipation
AVDD = DVDD = 3V
270
W
NOTES: (1) sps = Samples Per Second. (2) FSR = Full-Scale Range = 4VREF. (3) Recalibration can reduce these errors to the level of the noise. (4) fCM is the frequency
of the common-mode input. (5) fSIG is the frequency of the input signal. (6) It will not be possible to reach the digital output full-scale code when VREF > AVDD/2.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1244-EVM 制造商:BB 制造商全稱:BB 功能描述:Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER
ADS1244IDGSR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1244IDGSRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1244IDGST 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1244IDGSTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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