CMS24AD2001 24-bit Sigma-Delta ADC User Manual
■The CMS24AD2001 is a high-precision and low-power analog-to-digital converter (ADC) chip. It supports one differential input channel, one built-in linear voltage regulator (LDO), temperature sensor and high-precision oscillator. The output capacity of LDO is 20mA. The programmable gain amplifier (PGA) of CMS24AD2001 supports selectable gain options of 1, 2, 4, 8, 16, 32, 64, 128 and256. The ADC output data rate (ODR) in the normal mode of CMS24AD2001 is optional: 2.5Hz-2.56KHz, and the default is 5Hz. The CMS24AD2001 employs 2-wire SPI serial interface SCLK, DRDYB/DOUT to communicate with external controllers.
■The CMS24AD2001 can be configured by 2-wire SPI interface for different function such as channel selection, temperature sensing, PGA gain settings, ADC ODR settings, etc.
●Features
■Built-in LDO
■Support single differential input
■Built-in oscillator
■Integrated temperature sensor
■Supports sleep mode
■2-wire SPI interface, the maximum rate is 1.1MHz
■ADC features:
▲24-bit no missing code
▲Optional PGA gain: 1, 2, 4, 8, 16, 32, 64, 128, 256
▲Optional ODR: 2.5Hz-2.56KHz
▲PGA = 128, ODR = 10Hz, SET_LDO = 00, the effective resolution is 20.6-bit
▲PGA = 128, ODR = 10Hz, SET_LDO = 00, the input referred noise is 30nVrms
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24-bit Sigma-Delta ADC 、 high-precision and low-power analog-to-digital converter (ADC) chip 、 high-precision and low-power Sigma-Delta ADC chip |
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[ Weigh scale ][ Liquid chemical analysis ][ gas chemical analysis ][ Instrumentation ][ Industrial process control ][ Sensor signal acquisition ] |
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User's Guide |
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Please see the document for details |
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SOP8 |
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English Chinese Chinese and English Japanese |
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Mar 2022 |
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Rev. 1.12 |
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1.4 MB |
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