參數(shù)資料
型號(hào)： MCP3553E
廠商： Microchip Technology Inc.
英文描述： Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs
中文描述： 低功耗，單通道22位Δ-Σ模數(shù)轉(zhuǎn)換器
文件頁(yè)數(shù)： 17/30頁(yè)
文件大?。?/td> 616K
代理商： MCP3553E
2005 Microchip Technology Inc.
DS21950B-page 17
MCP3551/3
5.2
Controlling Internal Conversions
and the Internal Oscillator
During Shutdown mode, on the falling edge of CS, the
conversion process begins. During this process, the
internal oscillator clocks the delta-sigma modulator and
the SINC filter until a conversion is complete. This
conversion time is t
CONV
and the timing is shown in
Figure 5-2. At the end of t
CONV
, the digital filter has
settled completely and there is no latency involved with
the digital SINC filter of the MCP3551/3.
The two modes of conversion for the MCP3551/3
devices are Single Conversion and Continuous
Conversion. In Single Conversion mode, a consecutive
conversion will not automatically begin. Instead, after a
single conversion is complete and all four filters have
settled, the device puts the data into the output register
and enters shutdown.
In Continuous Conversion mode, a consecutive
conversion will be automatic. In this mode, the device
is continuously converting, independent of the serial
interface. The most recent conversion data will always
be available in the Output register.
When the device exits Shutdown, there is an internal
power-up delay that must be observed.
FIGURE 5-2:
Single Conversion Mode.
FIGURE 5-3:
Continuous Conversion Mode.
CS
Int. Osc
t
CONV
Sleep
Shutdown
SCK (opt)
SDO/RDY
Hi-Z
Hi-Z
x24
CS
Int. Osc
t
CONV
Shutdown
SCK (opt)
t
CONV
t
CONV
SDO/RDY
Hi-Z
x24
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參數(shù)描述
MCP3553-E/MS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MCP3553-E/SN 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MCP3553T 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs
MCP3553T-E/MS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MCP3553T-E/SN 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
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