模拟前端设备, 用于脉搏血氧仪, 2 V至3.6 V, VQFN-40
* Fully-Integrated Analog Front-End for Pulse Oximeter Applications: * Flexible Pulse Sequencing and Timing Control * Transmit: * Integrated LED Driver H-Bridge, Push, or Pull * Dynamic Range: 95 dB * LED Current: * Programmable to 50 mA with 8-Bit Current Resolution * Low Power: * 100 µA + Average LED Current * Programmable LED On-Time * Independent LED2 and LED1 Current Reference * Receive Channel with High Dynamic Range: * 13 Noise-Free Bits * Low Power: * Integrated Digital Ambient Estimation and Subtraction * Flexible Receive Sample Time * Flexible Transimpedance Amplifier with Programmable LED Settings * Integrated Fault Diagnostics: * Photodiode and LED Open and Short Detection * Cable On and Off Detection * Supplies: * Rx = 2.0 V to 3.6 V * Tx = 3.0 V to 5.25 V * Package: Compact VQFN-40 6 mm × 6 mm * Specified Temperature Range: 0°C to 70°C
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