13
Effective Number of Bits
The effective number of bits (ENOB) is derived from the
SINAD data;
Total Harmonic Distortion
The total harmonic distortion (THD) is the ratio of the RMS
sum of the second through sixth harmonic components to
the fundamental RMS signal for a specified input and
sampling frequency.
Spurious-Free Dynamic Range
The spurious-free dynamic range (SFDR) is the ratio of the
fundamental RMS amplitude to the RMS amplitude of the
next largest spur or spectral component. If the harmonics
are buried in the noise floor it is the largest peak.
ENOB =
SINAD - 1.76
6.02
THD = 10 Log
Total Harmonic Power (2nd - 6th Harmonic)
Sinewave Signal Power
SFDR = 10 Log
Sinewave Signal Power
Highest Spurious Signal Power
TABLE 2. CODE TABLE
CODE
DESCRIPTION
INPUT VOLTAGE
VREF+ = 4.608V
VREF- = 0.0V
(V)
DECIMAL
COUNT
BINARY OUTPUT CODE
MSB
LSB
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Full Scale (FS)
4.6069
4095
1
FS - 1 LSB
4.6058
4094
1
0
3/
4 FS
3.4560
3072
1
0
1/
2 FS
2.3040
2048
1
0
1/
4 FS
1.1520
1024
0
1
0
1 LSB
0.001125
1
0
1
Zero
0
The voltages listed above represent the ideal lower transition of each output code shown as a function of the reference voltage.
0.01
F
0.1
F
10
F
4.7
F
VREF+
VIN
VAA+VDD
D11
D0
DRDY
OEM
OEL
STRT
CLK
0.1
F
VREF-
VAA-
VSS
+5V
OUTPUT
DATA
750kHz CLOCK
0.001
F
0.1
F
4.7
F
VREF
ANALOG
INPUT
.
FIGURE 22. GROUND AND SUPPLY DECOUPLING
HI5812
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相关代理商/技术参数
HI5812JIJ 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CMOS 20 Microsecond, 12-Bit, Sampling A/D Converter with Internal Track and Hold
HI5812JIP 功能描述:ADC 12BIT 50KSPS 1.5LSB 24-DIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率(每秒):3M 数据接口:- 转换器数目:- 功率耗散(最大):- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:-
HI5812JIPS2268 制造商:Harris Corporation 功能描述:
HI5812JIPZ 功能描述:IC ADC 12BIT 50KSPS LP HS 24DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率(每秒):3M 数据接口:- 转换器数目:- 功率耗散(最大):- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:-
HI5812JIPZ 制造商:Intersil Corporation 功能描述:A/D CONVERTER (A-D) IC
HI5812KIB 功能描述:ADC 12BIT 50KSPS 1LSB 24-SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率(每秒):3M 数据接口:- 转换器数目:- 功率耗散(最大):- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:-
HI5812KIBZ 功能描述:ADC 12BIT 50KSPS 1LSB 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率(每秒):3M 数据接口:- 转换器数目:- 功率耗散(最大):- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:-
HI5812KIJ 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:CMOS 20 Microsecond, 12-Bit, Sampling A/D Converter with Internal Track and Hold