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| 型号： | ADS1244EVM |
| 厂商： | Texas Instruments |
| 文件页数： | 18/24页 |
| 文件大小： | 0K |
| 描述： | EVALUATION MODULE FOR ADS1244 |
| 产品培训模块： | Data Converter Basics |
| 视频文件： | Nuts and Bolts of the Delta-Sigma Converter |
| 标准包装： | 1 |
| ADC 的数量： | 2 |
| 位数： | 24 |
| 采样率（每秒）： | 15 |
| 数据接口： | 串行 |
| 输入范围： | 0 ~ 5 V |
| 在以下条件下的电源（标准）： | 150mW @ 500kSPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | ADS1244 |
| 已供物品： | 板 |
| 产品目录页面： | 889 (CN2011-ZH PDF) |
| 相关产品： | 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 |
| 其它名称： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS1244-EVM | 制造商:BB 制造商全称:BB 功能描述:Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER |
| ADS1244IDGSR | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1244IDGSRG4 | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1244IDGST | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS1244IDGSTG4 | 功能描述:模数转换器 - ADC 24-Bit Delta-Sigma 15SPS w/50-60Hz rej RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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