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ADS1298CZXGR-ADS1298CZXGT
8-Channel, 24-Bit Analog-To-Digital Converter With Integrated ECG Front End
Control
CLK
Oscillator
SPI
Test Signals and
Monitors
SPI
Reference
REF
ADC1
ADC2
ADC3
ADC4
RESP
DEMOD
ADS129xR
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ADS1294, ADS1294R, ADS1296, ADS1296R, ADS1298, ADS1298RSBAS459K –JANUARY 2010–REVISED AUGUST 2015
ADS129x Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements Features 3 DescriptionThe ADS1294, Eight Low-Noise PGAs and Eight High-Resolution ADS1294R,ADCs (ADS1298, ADS1298R) a family• Low Power: 0.75 mW/channel 24-bit, Input-Referred Noise:4 μVPP (150 Hz• Input Bias Current: 200 pA• Data Rate: 250 SPSto 32 kSPS• CMRR: –115 dB
(EEG)• Programmable Gain:1,2,3,4,6,8,or12
and exceptional• Supports systems meeting AAMI EC11, EC13, ADS129xRIEC60601-1, IEC60601-2-27, and IEC60601-2-51 medicalStandards reduced Unipolaror Bipolar Supplies: The ADS129x– AVDD= 2.7Vto 5.25V DVDD= 1.65Vto 3.6V• Built-In Right Leg Drive Amplifier, Lead-OffDetection, Wilson Center Terminal, PaceDetection, Test Signals output• Integrated Respiration Impedance Measurement at data
the implementation• Digital Pace Detection Capability
off detection• Built-In Oscillator and Reference device, either witha pullupor pulldown resistor,oran• SPI™-Compatible Serial Interface excitation current sink or source. Three integrated
amplifiers generate the Wilson central terminal (WCT)
2 Applications and the Goldberger central terminals (GCT) required
fora standard 12-lead ECG. The ADS129xR versions• Medical Instrumentation (ECG, EMG, and EEG): includea fully integrated, respiration impedancePatient Monitoring; Holter, Event, Stress, and Vital measurement function. Multiple ADS129x andSigns Including ECG, AED, Telemedicine ADS129xR devices can be cascadedin high channelBispectral Index (BIS), Evoked Audio Potential count systemsina daisy-chain configuration.(EAP), Sleep Study Monitor
Package options includea tiny 8-mm× 8-mm,
64-ball BGA, anda TQFP-64. The ADS129x BGA
Simplified Schematicversionis specified over the commercial temperature
range of 0°C to 70°C. The ADS129xR BGA and
ADS129x TQFP versions are specified over the
industrial temperature rangeof –40°Cto +85°C.
Device Information(1)
