24-Bit Analog Front-End
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ADS1294, ADS...
Description
Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
Reference Design
ADS1294, ADS1294R, ADS1296, ADS1296R, ADS1298, ADS1298R
SBAS459K – JANUARY 2010 – REVISED AUGUST 2015
ADS129x Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
1 Features
1 Eight Low-Noise PGAs and Eight High-Resolution ADCs (ADS1298, ADS1298R)
Low Power: 0.75 mW/channel Input-Referred Noise: 4 μVPP (150 Hz BW, G = 6) Input Bias Current: 200 pA Data Rate: 250 SPS to 32 kSPS CMRR: –115 dB Programmable Gain: 1, 2, 3, 4, 6, 8, or 12 Supports systems meeting AAMI EC11, EC13,
IEC60601-1, IEC60601-2-27, and IEC60601-2-51 Standards Unipolar or Bipolar Supplies: – AVDD = 2.7 V to 5.25 V – DVDD = 1.65 V to 3.6 V Built-In Right Leg Drive Amplifier, Lead-Off Detection, Wilson Center Terminal, Pace Detection, Test Signals Integrated Respiration Impedance Measurement Digital Pace Detection Capability Built-In Oscillator and Reference SPI™-Compatible Serial Interface
2 Applications
Medical Instrumentation (ECG, EMG, and EEG): Patient Monitoring; Holter, Event, Stress, and Vital Signs Including ECG, AED, Telemedicine Bispectral Index (BIS), Evoked Audio Potential (EAP), Sleep Study Monitor
SPI
Simplified Schematic
REF
Test Signals and Monitors
ADS129xR
Reference
A1
RESP DEMOD
ADC1
A2
ADC2
A3
ADC3
A4 MUX
A5
ADC4 ADC5
Control
A6
ADC6
A7
ADC7
SPI Oscillator
CLK
INPUTS
3 Description
The ADS1294, ADS1296, ADS1...
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