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參數(shù)資料
| 型號： | MAX1038 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2.7V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs |
| 中文描述： | 2.7V至5.5V、低功耗、4/12通道、2線串口8位ADC |
| 文件頁數(shù)： | 20/22頁 |
| 文件大?。?/td> | 427K |
| 代理商： | MAX1038 |
M
2.7V to 5.5V, Low-Power, 4-/12-Channel
2-Wire Serial 8-Bit ADCs
20
______________________________________________________________________________________
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step width and the ideal value of 1LSB. A
DNL error specification of less than 1LSB guarantees
no missing codes and a monotonic transfer function.
Aperture Jitter
Aperture jitter (t
AJ
) is the sample-to-sample variation in
the time between the samples.
Aperture Delay
Aperture delay (t
AD
) is the time between the rising
edge of the sampling clock and the instant when an
actual sample is taken.
Signal-to-Noise Ratio
For a waveform perfectly reconstructed from digital sam-
ples, signal-to-noise ratio (SNR) is the ratio of full-scale
analog input (RMS value) to the RMS quantization error
(residual error). The ideal, theoretical minimum analog-
to-digital noise is caused by quantization error only and
results directly from the ADC
’
s resolution (N bits):
SNR = (6.02
N + 1.76)dB
INPUT VOLTAGE (LSB)
OUTPUT CODE
1...111
1...110
1...101
1...100
0...000
0...001
0...010
0...011
2
3
256
V
REF
1LSB =
1
253
255
254
REF
256
0
252
Figure 12. Unipolar Transfer Function
INPUT VOLTAGE (LSB)
OUTPUT CODE
(TWO'S COMPLEMENT)
0...111
0...110
0...101
0...100
1...000
1...001
1...010
1...011
-1
-126 -125
256
V
REF
1LSB =
0
+1
-127
+125
+127
+126
0...000
1...111
0...001
REF
+128
-128
+124
'-' INPUT
Figure 13. Bipolar Transfer Function
3V/5V
V
LOGIC
= 3V/5V
GND
SUPPLIES
DGND
3V/5V
GND
0.1
μ
F
V
DD
DIGITAL
CIRCUITRY
MAX1036
MAX1037
MAX1038
MAX1039
R* = 5
*OPTIONAL
Figure 14. Power-Supply and Grounding Connections
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1038AEEE | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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 |
| MAX1038AEEE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V 12-Bit 4Ch I2C Serial 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 |
| MAX1038AEEE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 5V 12-Bit 4Ch I2C Serial 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 |
| MAX1038AEEE-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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 |
| MAX1038EVKIT | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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