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參數(shù)資料
| 型號： | MAX1154AEUE |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Stand-Alone, 10-Channel, 10-Bit System Monitors with Internal Temperature Sensor and VDD Monitor |
| 中文描述： | 單機，10通道，10與內部溫度傳感器和VDD監(jiān)視器位系統(tǒng)顯示器 |
| 文件頁數(shù)： | 27/29頁 |
| 文件大?。?/td> | 481K |
| 代理商： | MAX1154AEUE |
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M
Stand-Alone, 10-Channel, 10-Bit System Monitors
with Internal Temperature Sensor and V
DD
Monitor
______________________________________________________________________________________
27
Transfer Function
Figure 10 shows the nominal transfer function for sin-
gle-ended or differential unipolar configured inputs,
Figure 11 illustrates the transfer function for differential
bipolar conversions, and Figure 12 shows temperature
conversions. Code transitions occur halfway between
successive-integer LSB values. Output coding is bina-
ry, with 1 LSB = 2.44mV (MAX1153) or 4mV (MAX1154)
for unipolar and bipolar operation, and 1 LSB = +0.5
°
C
(MAX1153/MAX1154) for temperature measurements.
For unipolar operation, the 0 code level transition is at
[1/2(V
REF
/ 1024)].
The FFF hex level transition is at [1022.5(V
REF
/ 1024)].
1 LSB = V
REF
/ 1024.
Layout, Grounding, and Bypassing
For best performance, use PC boards. Do not use wire-
wrap boards. Board layout should ensure that digital
and analog signal lines are separated from each other.
Do not run analog and digital (especially clock) signals
parallel to one another or run digital lines underneath
the MAX1153/MAX1154 package. High-frequency
noise in the V
DD
power supply can affect the
MAX1153/MAX1154 performance. Bypass the V
DD
sup-
ply with a 0.1μF capacitor from V
DD
to GND close to
the V
DD
pin. Minimize capacitor lead lengths for best
supply-noise rejection. If the power supply is very
noisy, connect a 10
resistor in series with the supply
to improve power-supply filtering.
Definitions
Integral Nonlinearity
Integral nonlinearity is the deviation of the values on the
actual transfer function from a straight line. This straight
line can be either a best-straight-line fit or a line drawn
between the end points of the transfer function, once off-
set and gain errors have been corrected. The static lineari-
ty parameters for the MAX1153/MAX1154 are measured
using the end-point-fit method. INL is specified as the
maximum deviation in LSBs.
Differential Nonlinearity (DNL)
Differential nonlinearity is the difference between an
actual step width and the ideal value of 1 LSB. A DNL
error specification of less than 1 LSB guarantees no
missing codes and a monotonic transfer function.
Offset Error
The offset error is the difference between the ideal and
the actual analog input value at the first transition of the
ADC, usually from digital code 0 to code 1 for straight
binary output. For the MAX1153/MAX1154, the transi-
tion between code 0 and code 1 should occur at an
input voltage of 1/2 LSB, or 1.22mV for the MAX1153
and 2mV for the MAX1154.
OUTPUT CODE
011....111
011....110
TEMPERATURE
°
C
000....001
000....000
111....101
100....001
100....000
111....111
111....110
0
000....010
-256
°
C
+255.5
°
C
Figure 12. Temperature Transfer Function
OUTPUT CODE
011....111
011....110
INPUT VOLTAGE (LSB)
000....001
000....000
111....101
100....001
100....000
111....111
111....110
0
000....010
-FS
+FS - 1 LSB
FS =
ZS = 0
-FS =-V
REF
V
REF
2
2
1 LSB =V
REF
1024
Figure 11. Bipolar Transfer Function, Full Scale (±FS) = ±V
REF
/2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1154AEUE+ | 功能描述:模數(shù)轉換器 - ADC HQ PN TESTED 16-TSSOP 173 MIL RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1154AEUE+T | 功能描述:模數(shù)轉換器 - ADC NULL RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1154AEUE-T | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1154BEUE | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1154BEUE+ | 功能描述:模數(shù)轉換器 - ADC Stnd-Alne 10Ch 10Bit System Monitor RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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