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參數(shù)資料
| 型號： | MAX11040KDBEVKIT# |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/35頁 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX11040 W/FMC CONN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 軟件下載： | MAX11040KEVKIT |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 4 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 3.07M |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 輸入范圍： | ±2.2 V |
| 工作溫度： | -40°C ~ 105°C |
| 已用 IC / 零件： | MAX11040K |
| 已供物品： | 板 |
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MAX11040K/MAX11060
24-/16-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADCs
15
Maxim Integrated
When the analog input voltage changes between the
ADC full scale and the fault threshold faster than the
latency of the converter, OVRFLW goes low with the
FAULT output. OVRFLW remains invalid until a valid
clock frequency is available at XIN.
Overvoltage-Fault Detection and Recovery (
FAULT)
With overvoltage-fault protection enabled (FAULTDIS =
0), FAULT immediately transitions from a high to low
when any of the analog inputs go outside the voltage
range bounded by the fault-detection thresholds VPFT
and VNFT.
Once the analog inputs return back within the fault
thresholds, the FAULT interrupt output goes high after a
delay called the fault-recovery time. The fault-recovery
time is:
20 x tDOUT < fault-recovery time < 25 x tDOUT
where tDOUT is the data output period determined by
fXINCLOCK and the selected output data rate.
In the event the analog input voltage changes between
the ADC full scale and the fault threshold faster than
the latency of the converter, the ADC conversion result
prematurely jumps to the full-scale value when a fault is
detected (see Detection Discontinuity in Figure 4).
During a fault condition and the subsequent fault-
recovery time, the ADC conversion result remains at full
scale. This creates a discontinuity in the digital conver-
sion result only if the fault recovery time is greater than
the latency plus the time that the input changes
between the fault threshold and the ADC full scale (see
Recovery Discontinuity in Figure 4). Neither of these
steps occur if the fault-protection circuitry is disabled
(FAULTDIS = 1), or if the input is slow relative to the
above descriptions (see Figure 5).
For data rates faster than 32ksps (FSAMPC = 111), the
converter output may contain invalid data for up to
188μs after FAULT returns high. To prevent this behav-
ior, disable the overvoltage-fault protection by setting
the FAULTDIS bit in the configuration register to 1 when
using FSAMPC = 111, and limit the analog input swing
to ±3.5V.
|AIN+ - AIN-|
LATENCY
DETECTION
DISCONTINUITY
RECOVERY
DISCONTINUITY
FULL SCALE
(|0.88VREF|)
FAULT-DETECTION
THRESHOLD
(VPFT OR |VNFT|)
RECOVERY TIME
LATENCY
FAULT
OVRFLW
DIGITAL OUTPUT
DATA AT DOUT
Figure 4. High-Frequency Analog Input Overvoltage Detection and Recovery
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11040KDBEVKIT# | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX5135/11040/11612 Eval Kit w/ FMC 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 |
| MAX11040KEVKIT | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:MAX11040K Evaluation Kit/Daughterboard |
| MAX11040KEVKIT# | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX5135/11040/11612 Eval Kit w/ FMC 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 |
| MAX11040KGUU | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:24-/16-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADCs |
| MAX11040KGUU/GG8 | 制造商:Maxim Integrated Products 功能描述:24-BIT, 4-CHANNEL, SIMULTANEOUS-SAMPLING, CASCADABLE, SIGMA- - Rail/Tube |
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