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AFE4300PN, Analog Front End - AFE Weigh Scale/Body Comp AFE
Semiconductors\Data Converter ICs\Analog Front End - AFEAFE4300 Analog Front End
Texas 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.
| 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 |
| Factory Pack Quantity | 119 |
| Product | Analog Front Ends |
| RoHS | Details |
| Вес, г | 0.64 |
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