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ADS1298IPAG Datasheet(PDF) 1 Page - Texas Instruments |
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ADS1298IPAG Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 80 page  Control Oscillator SPI TestSignalsand Monitors PACE RLD Wilson Terminal WCT Reference REF ADC7 ADC8 ADC1 ADC2 ADC3 ADC4 ADC5 ADC6 A7 A8 A1 A2 A3 A4 A5 A6 MUX ¼ ¼ ¼ ToChannel RESP ADS1294 , ADS1296 ADS1298 www.ti.com SBAS459E – JANUARY 2010 – REVISED AUGUST 2010 Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements Check for Samples: ADS1294, ADS1296, ADS1298 With its high levels of integration and exceptional 1 FEATURES performance, the ADS1294/6/8 family enables the 23 • Eight Low-Noise PGAs and creation of scalable medical instrumentation systems Eight High-Resolution ADCs (ADS1298) at significantly reduced size, power, and overall cost. • Low Power: 0.75mW/channel The ADS1294/6/8 have a flexible input multiplexer • Input-Referred Noise: 4mVPP (150Hz BW, G = 6) per channel that can be independently connected to • Input Bias Current: 200pA the internally-generated signals for test, temperature, and lead-off detection. Additionally, any configuration • Data Rate: 250SPS to 32kSPS of input channels can be selected for derivation of the • CMRR: –115dB right leg drive (RLD) output signal. The ADS1294/6/8 • Programmable Gain: 1, 2, 3, 4, 6, 8, or 12 operate at data rates as high as 32kSPS, thereby allowing the implementation of software pace • Supplies: Unipolar or Bipolar detection. Lead-off detection can be implemented – Analog: 2.7V to 5.25V internal to the device, either with a pull-up/pull-down – Digital: 1.65V to 3.6V resistor or an excitation current sink/source. Three integrated amplifiers generate the Wilson Central • Built-In Right Leg Drive Amplifier, Lead-Off Terminal (WCT) and the Goldberger Central Detection, WCT, Test Signals Terminals (GCT) required for a standard 12-lead • Pace Detection ECG. • Digital Pace Detection Capability Multiple ADS1294/6/8 devices can be cascaded in • Built-In Oscillator and Reference high channel count systems in a daisy-chain • Flexible Power-Down, Standby Mode configuration. • SPI™-Compatible Serial Interface Package options include a tiny 8mm × 8mm, 64-ball • Operating Temperature Range: –40°C to +85°C BGA and a TQFP-64. The BGA version is specified over the commercial temperature range of 0°C to +70°C. The TQFP version is specified over the APPLICATIONS industrial temperature range of –40°C to +85°C. • Medical Instrumentation (ECG and EEG) including: – Patient monitoring; Holter, event, stress, and vital signs including ECG, AED, telemedicine, fetal ECG – Bispectral index (BIS), Evoked audio potential (EAP), Sleep study monitor • High-Precision, Simultaneous, Multichannel Signal Acquisition DESCRIPTION The ADS1294/6/8 are a family of multichannel, simultaneous sampling, 24-bit, delta-sigma ( ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. The ADS1294/6/8 incorporate all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications. 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. 2 SPI is a trademark of Motorola. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2010, 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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