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参数资料
| 型号： | MAX1062CEUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 200KSPS 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 位数： | 14 |
| 采样率（每秒）： | 200k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 444mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个单端，单极 |
time between the falling edge of the sampling clock
and the instant when the actual sample is taken.
Signal-to-Noise Ratio
For a waveform perfectly reconstructed from digital
samples, signal-to-noise ratio (SNR) is the ratio of the
full-scale analog input (RMS value) to the RMS quanti-
zation error (residual error). The ideal, theoretical mini-
mum analog-to-digital noise is caused by quantization
noise error only and results directly from the ADCs res-
olution (N bits):
SNR = (6.02 x N + 1.76)dB
In reality, there are other noise sources besides quanti-
zation noise: thermal noise, reference noise, clock jitter,
etc. SNR is computed by taking the ratio of the RMS
signal to the RMS noise, which includes all spectral
components minus the fundamental, the first five har-
monics, and the DC offset.
Signal-to-Noise Plus Distortion
Signal-to-noise plus distortion (SINAD) is the ratio of the
fundamental input frequency’s RMS amplitude to the
RMS equivalent of all the other ADC output signals.
Effective Number of Bits
Effective number of bits (ENOB) indicate the global
accuracy of an ADC at a specific input frequency and
sampling rate. An ideal ADC error consists of quantiza-
tion noise only. With an input range equal to the full-
scale range of the ADC, calculate the effective number
of bits as follows:
ENOB = (SINAD – 1.76) / 6.02
Figure 13 shows the effective number of bits as a func-
tion of the MAX1062’s input frequency.
Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the RMS
sum of the first five harmonics of the input signal to the
fundamental itself. This is expressed as:
where V1 is the fundamental amplitude and V2 through
V5 are the 2nd- through 5th-order harmonics.
Spurious-Free Dynamic Range
Spurious-free dynamic range (SFDR) is the ratio of the
RMS amplitude of the fundamental (maximum signal
component) to the RMS value of the next largest fre-
quency component.
Supplies, Layout, Grounding
and Bypassing
Use PC boards with separate analog and digital
ground planes. Do not use wire-wrap boards. Connect
the two ground planes together at the MAX1062 (pin 3).
Isolate the digital supply from the analog with a low-
value resistor (10
) or ferrite bead when the analog
and digital supplies come from the same source
(Figure 14).
THD
VVVV
V
=×
+++
20
1
2
3
2
4
2
5
2
log
SINAD dB
Signal
Noise
Distortion
RMS
(
)
log
=×
+
()
20
MAX1062
14-Bit, +5V, 200ksps ADC with 10A Shutdown
______________________________________________________________________________________
15
0.1
10
100
MAX1062
Fig13
INPUT FREQUENCY (kHz)
EFFECTIVE
BITS
1
14
0
2
4
6
8
12
10
fSAMPLE = 200kHz
Figure 13. Effective Bits vs. Input Frequency
SCLK
DOUT
AGND
DGND
AIN
10
REF
AVDD
DVDD
DOUT
SCLK
CS
AIN
VREF
+5V
4.7
F
0.1
F
0.1
F
GND
MAX1062
CS
Figure 14. Powering AVDD and DVDD from a Single Supply
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1063 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface |
| MAX1063ACEG | 功能描述:模数转换器 - ADC 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 |
| MAX1063ACEG+ | 功能描述:模数转换器 - ADC 3V 10Bit 4Ch 400ksps w/2.5V Ref & Prl Int 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 |
| MAX1063ACEG+T | 功能描述:模数转换器 - ADC 3V 10Bit 4Ch 400ksps w/2.5V Ref & Prl Int 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 |
| MAX1063ACEG-T | 功能描述:模数转换器 - ADC 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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