ADX911AQFN32
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                                        A low-noise PGA and a 16-bit high-precision ADC analog ECG front-end 
Product details
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                                            Parameters 
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                                            Characteristics 
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                                            Package 
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                                            Description 
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                                                        One PGA and one 16-bit high-precision ADC. 
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                                                        SPI communication with a sampling rate of 8 Ksps. 
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                                                        -40°C to +85°C 
 
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                                                        • Three low-noise PGAs and two high-resolution ADCs. 
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                                                        • Input-referred noise: 24 μVPP (Gain = 6). 
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                                                        • Input bias current: 800 pA. 
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                                                        • Data rate: 125 SPS to 8 kSPS. 
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                                                        • Common Mode Rejection Ratio -100dB 
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                                                        • Programmable gain: 1, 2, 3, 4, 6, 8, or 12 
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                                                        • Power supply: Single or dual rail. 
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                                                        Analog power supply 2.7V to 5.5V 
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                                                        digital power supply 1.65V to 3.6V 
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                                                        • Built-in right leg drive amplifier, lead-off detection, test signal. 
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                                                        • Integrated Analog PACE Measurement (ADX912) 
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                                                        • Built-in Oscillator and Reference 
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                                                        • Power supply monitoring, internal temperature sensor, and over-range detection 
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                                                        • Flexible power-down and standby modes 
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                                                        • SPI™ compatible serial interface with timeout reset functionality 
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                                                        • Supports systems compliant with IEC 60601-2-47 standard 
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                                                        • Operating temperature range -40°C to 85°C 
 
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                                                        QFN32 4mm x 4mm 
 
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                                            The ADX911/2 is a multi-channel, simultaneous sampling, 16-bit Delta-Sigma (ΔΣ) analog-to-digital converter (ADC) featuring an integrated programmable gain amplifier (PGA), internal reference, and onboard oscillator. The ADX911/2 incorporates all the functionalities typically required in portable, low-power medical electrocardiogram (ECG) applications, as well as in sports and fitness monitoring. With its high level of integration and exceptional performance, the ADX911/2 significantly reduces the size, power consumption, and overall cost of creating scalable medical instrumentation systems. Each channel of the ADX911/2 is equipped with a flexible input multiplexer, allowing independent connection to internally generated signals for testing, temperature monitoring, and lead-off detection. Additionally, any input channel can be configured to capture the right leg drive (RLD) output signal. The device supports data rates of up to 8 kSPS. Lead-off detection is implemented internally using a current excitation source. The operating temperature range of the ADX911/2 is -40°C to 85°C. 
Related applications
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