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ADS1293CISQ Arkusz danych(PDF) 1 Page - Texas Instruments |
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ADS1293CISQ Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 75 page CH1-ECG CH2-ECG CH3-ECG Lead off detect - + EMI filter CSB SCLK SDI SDO OSC IN1 Flexible Routing Switch Test Ref EMI filter IN2 EMI filter IN3 EMI filter IN4 EMI filter IN5 EMI filter IN6 Batt. Mon POR DRDYB CLK ALARMB DIGITAL CONTROL AND POWER MANAGEMENT Wilson ref. CM Detect Digital Filter Σ∆ Modulator Digital Filter Σ∆ Modulator - + - + InA InA InA WCT - + CH4- Analog Pace WILSON_EN CMDET_EN REF LOD_EN CH1-Pace CH2-Pace CH3-Pace Digital Filter Σ∆ Modulator REF for CM & RLD RLD Amp. PACE2 RLDIN PACE2WCT WILSON_CN CH1 CH2 CH3 CH4 InA ADS1293 www.ti.com SNAS602B – FEBRUARY 2013 – REVISED MARCH 2013 ADS1293 Low Power, 3-Channel, 24-Bit Analog Front End for Biopotential Measurements Check for Samples: ADS1293 1 FEATURES DESCRIPTION The ADS1293 incorporates all features commonly • 3 High Resolution Digital ECG Channels with required in portable, low-power medical, sports, and Simultaneous Pace Output fitness electrocardiogram (ECG) applications. With • EMI Hardened Inputs high levels of integration and exceptional • Low Power: 0.3mW/channel performance, the ADS1293 enables the creation of scalable medical instrumentation systems at • Input-Referred Noise: 7µVpp (40Hz Bandwidth) significantly reduced size, power, and overall cost. • Input Bias Current: 175pA The ADS1293 features three high-resolution channels • Data Rate: Up to 25.6ksps capable of operating up to 25.6ksps. Each channel • Differential Input Voltage Range: ±400mV can be independently programmed for a specific • Analog Supply Voltage: 2.7V to 5.5V sample rate and bandwidth allowing users to optimize the configuration for performance and power. All input • Digital I/O Supply Voltage: 1.65V to 3.6V pins incorporate an EMI filter and can be routed to • Right Leg Drive Amplifier any channel via a flexible routing switch. Flexible • AC and DC Lead-Off Detection routing also allows independent lead-off detection, right leg drive, and Wilson/Goldberger reference • Wilson and Goldberger Terminals terminal generation without the need to reconnect • ALARMB Pin for Interrupt Driven Diagnostics leads externally. A fourth channel allows external • Battery Voltage Monitoring analog pace detection for applications that do not utilize digital pace detection. • Built-In Oscillator and Reference • Flexible Power-Down and Standby Modes The ADS1293 incorporates a self-diagnostics alarm system to detect when the system is out of the operating conditions range. Such events are reported APPLICATIONS to error flags. The overall status of the error flags is • Portable 1/2/3/5/6/7/8/12-Lead ECG available as a signal on a dedicated ALARMB pin. • Patient vital sign monitoring: holter, event, The device is packaged in a 5-mm × 5-mm × 0.8-mm, stress, and telemedicine 28-pin LLP. Operating temperature ranges from • Automated External Defibrillator –20°C to 85°C. • Sports and fitness (heart rate and ECG) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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