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參數(shù)資料
| 型號： | MAX11131ATI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/37頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT SRL 28-TQFN-EP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 25 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 3M |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.76W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 28-TQFN-EP（5x5） |
| 包裝： | 管件 |
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19
Maxim Integrated
MAX11129–MAX11132
3Msps, Low-Power, Serial 12-/10-Bit,
8-/16-Channel ADCs
Analog Input
The MAX11129–MAX11132 produce a digital output that
corresponds to the analog input voltage as long as the
analog inputs are within the specified operating range.
Internal protection diodes confine the analog input volt-
age within the region of the analog power input rails
(VDD, GND) and allow the analog input voltage to swing
from GND - 0.3V to VDD + 0.3V without damaging the
device. Input voltages beyond GND - 0.3V and VDD +
0.3V forward bias the internal protection diodes. Limit the
forward diode current to less than 50mA to avoid dam-
age to the MAX11129–MAX11132.
ECHO
When writing to the ADC Configuration register, set
ECHO to 1 in ADC Configuration register to echo back
the configuration data onto DOUT at time n+1 (Figure 8,
Scan Modes
The MAX11129–MAX11132 feature nine scan modes
Manual Mode
The next channel to be selected is identified in each SPI
frame. The conversion results are sent out in the next
frame. The manual mode works with the external clock
only. The FIFO is unused.
Repeat Mode
Repeat scanning channel N for number of times and
store all the conversion results in the FIFO. The number of
scans is programmed in the ADC Configuration register.
The repeat mode works with the internal clock only.
Custom_Int and Custom_Ext
In Custom_Int and Custom_Ext modes, the device scans
preprogrammed channels in ascending order. The chan-
nels to be scanned in sequence are programmed in
the Custom Scan0 or Custom Scan1 registers. A new
I/P MUX is selected every frame on the thirteenth falling
edge of SCLK. Custom_Int works with the internal clock.
Custom_Ext works with the external clock.
Standard_Int and Standard_Ext
In Standard_Int and Standard_Ext modes, the device
scans channels 0 through N in ascending order where
N is the last channel specified in the ADC Mode Control
register. A new I/P MUX is selected every frame on the
thirteenth falling edge of SCLK. Standard_Int works with
the internal clock. Standard_Ext works with the external
clock.
Upper_Int and Upper_Ext
In Upper_Int and Upper_Ext modes, the device scans
channels N through 15/11/7/3 in ascending order where
N is the first channel specified in the ADC Mode Control
register. A new I/P MUX is selected every frame on the
thirteenth falling edge of SCLK. Upper_Int works with the
internal clock. Upper_Ext works with the external clock.
SampleSet
The SampleSet mode of operation allows the definition
of a unique channel sequence combination with maxi-
mum length of 256. SampleSet is supported only in the
external clock mode. SampleSet is ideally suited for mul-
tichannel measurement applications where some analog
inputs must be converted more often than others.
The SampleSet approach provides greater sequencing
flexibility for multichannel applications while alleviating
significant microcontroller or DSP (controlling unit) com-
munication overhead. SampleSet technology allows the
user to exploit available ADC input bandwidth without
need for constant communication between the ADC and
controlling unit. The user may define and load a unique
sequencing pattern into the ADC allowing both high- and
low-frequency inputs to be converted appropriately with-
out interface activity. With the unique sequence loaded
Figure 8. Echo Back the Configuration Data
CS
DIN
t = n-1
DOUT
CONFIGURATION
DATA
CONFIGURATION
DATA
CONFIGURATION
DATA
CONFIGURATION
DATA
CONFIGURATION
DATA
TURN ON ECHO
t = nt = n+1
t = n+2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11131ATI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 16Ch 3Msps Precision 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 |
| MAX11131ATI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 16Ch 3Msps Precision 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 |
| MAX11131AUI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 16 Ch 3Msps Serial 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 |
| MAX11131AUI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 16 Ch 3Msps Serial 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 |
| MAX11131EVKIT# | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX11131 Eval Kit 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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