1 Features

• Integrated Signal Chain for ECG, Pace Detection, and Respiration Measurement

• ECG Receiver

– Eight high resolution channels at low power of 0.37mW/channel

– Flexible eight leads selectable from ten electrodes

– Programmable gain: 1.25 to 9

– Noise: 4.7μVPP in 150Hz with Gain = 4

– Differential input range: ±1V with Gain = 4

– CMRR: -140dB

– Data rate: 125SPS to 128kSPS

• Pace Detection

– On-chip digital pace detection algorithm on programmable four leads

– High-speed 128kSPS pace output on four channels for software pace detection

• Respiration

– Low-noise of 16mΩPP with 2kΩ body impedance and 1kΩ defibrillator protection resistor on each electrode

– Supports Sine and Square wave excitation

• Other Features

– Built-in right leg drive amplifier steerable to any electrode

– DC lead-off detection, AC lead impedance detection, Wilson Center Terminal (WCT), Goldberger Central Terminals (GCT), test signals

– Battery voltage monitoring

– Flexible power-down and standby modes

– Built-in oscillator, PLL, and reference

– 1k sample main FIFO and 2k sample pace FIFO

– SPI-compatible serial interface

– Analog supply voltage 1: 3.15V to 5.25V

– Analog supply voltage 2: 1.7V to 1.9V

– I/O supply voltage: 1.65V to 3.6V

• Supports systems meeting AAMI EC11, AMI EC13, AMI EC38, IEC60601-1, IEC60601-2-25, IEC60601-2-27, and IEC60601-2-51 standards