AFE4300PN, Analog Front End - AFE Weigh Scale/Body Comp AFE
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Описание
Semiconductors\Data Converter ICs\Analog Front End - AFE
AFE4300 Analog Front EndTexas Instruments AFE4300 Analog Front End incorporates two separate signal chains for weight-scale measurement and body composition measurement analysis. A 16-bit, 860-SPS analog-to-digital converter is multiplexed between both chains. The weight measurement chain of the TI AFE includes an instrumentation amplifier with the gain set by an external resistor, followed by a 6-bit digital-to-analog converter for offset correction, and a circuit to drive the external bridge/load cell with a fixed 1.7V for ratiometric measurements. AFE4300 can also measure body composition by applying a sinusoidal current into the body. The sinusoidal current is generated with an internal pattern generator and a 6-bit, 1-MSPS DAC. A voltage-to-current converter applies this sinusoidal current into the body, between two terminals. The voltage created across these two terminals as a result of the impedance of the body is measured back with a differential amplifier, rectified, and its amplitude is extracted and measured by the 16-bit ADC.
Технические параметры
Analog Supply Voltage: | 2 V to 3.6 V |
Brand: | Texas Instruments |
Factory Pack Quantity: Factory Pack Quantity: | 119 |
Features: | Biosensing |
Manufacturer: | Texas Instruments |
Maximum Operating Temperature: | +70 C |
Minimum Operating Temperature: | 0 C |
Moisture Sensitive: | Yes |
Mounting Style: | SMD/SMT |
Operating Supply Voltage: | 2 V to 3.6 V |
Package / Case: | LQFP-80 |
Packaging: | Tray |
Product Category: | Analog Front End-AFE |
Product Type: | Analog Front End-AFE |
Resolution: | 16 bit |
Series: | AFE4300 |
Subcategory: | Data Converter ICs |
Analog Supply Voltage | 2 V to 3.6 V |
Brand | Texas Instruments |
Factory Pack Quantity | 119 |
Manufacturer | Texas Instruments |
Maximum Operating Temperature | +70 C |
Minimum Operating Temperature | 0 C |
Mounting Style | SMD/SMT |
Operating Supply Voltage | 2 V to 3.6 V |
Package / Case | LQFP-80 |
Packaging | Tray |
Product | Analog Front Ends |
Product Category | Analog Front End-AFE |
Resolution | 16 bit |
RoHS | Details |
Series | AFE4300 |
Вес, г | 0.64 |
Техническая документация
Datasheet AFE4300PNR
pdf, 679 КБ