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| 型号： | MAX11040GUU+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/35页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 4CH 38-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 64k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 4 |
| 功率耗散（最大）： | 108mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 38-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 4 个差分，双极 |
| 配用： | MAXSPCSPARTAN6+-ND - ADC and DAC Eval Expansion Board |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11040GUU/GH9 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX11040GUU+ | 功能描述:模数转换器 - ADC 24Bit 4Ch Simul-Samp Cascadable Sig Delt 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 |
| MAX11040GUU+T | 功能描述:模数转换器 - ADC 24Bit 4Ch Simul-Samp Cascadable Sig Delt 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 |
| MAX11040K | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:24-/16-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADCs |
| MAX11040K_1111 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:24-/16-Bit, 4-Channel, Simultaneous-Sampling, Cascadable, Sigma-Delta ADCs |
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