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ADS1294RIZXGR Datasheet(PDF) 1 Page - Texas Instruments |
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ADS1294RIZXGR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 88 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 Resp RESP DEMOD ADS129xR ADS129xR ADS1294, ADS1294R ADS1296, ADS1296R ADS1298, ADS1298R www.ti.com SBAS459I – JANUARY 2010 – REVISED JANUARY 2012 Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements Check for Samples: ADS1294, ADS1294R, ADS1296, ADS1296R, ADS1298, ADS1298R With its high levels of integration and exceptional 1 FEATURES performance, the ADS1294/6/8/4R/6R/8R family 23 • Eight Low-Noise PGAs and Eight enables the development of scalable medical High-Resolution ADCs (ADS1298, ADS1298R) instrumentation systems at significantly reduced size, • Low Power: 0.75mW/channel power, and overall cost. • Input-Referred Noise: 4 μVPP (150Hz BW, G = 6) The ADS1294/6/8/4R/6R/8R have a flexible input multiplexer per channel that can be independently • Input Bias Current: 200pA connected to the internally-generated signals for test, • Data Rate: 250SPS to 32kSPS temperature, and lead-off detection. Additionally, any • CMRR: –115dB configuration of input channels can be selected for • Programmable Gain: 1, 2, 3, 4, 6, 8, or 12 derivation of the right leg drive (RLD) output signal. The ADS1294/6/8/4R/6R/8R operate at data rates as • Supports AAMI EC11, EC13, IEC60601-1, high as 32kSPS, thereby allowing the implementation IEC60601-2-27, and IEC60601-2-51 Standards of software PACE detection. Lead-off detection can • Unipolar or Bipolar Supplies: be implemented internal to the device, either with a AVDD = 2.7V to 5.25V, DVDD = 1.65V to 3.6V pull-up/pull-down resistor or an excitation current sink/source. Three integrated amplifiers generate the • Built-In Right Leg Drive Amplifier, Lead-Off Wilson Central Terminal (WCT) and the Goldberger Detection, WCT, PACE Detection, Test Signals Central Terminals (GCT) required for a standard • Integrated Respiration Impedance 12-lead ECG. The ADS1294R/6R/8R versions Measurement (ADS1294R/6R/8R only) include a fully-integrated, respiration impedance • Digital PACE Detection Capability measurement function. • Built-In Oscillator and Reference Multiple ADS1294/6/8/4R/6R/8R devices can be • Flexible Power-Down, Standby Modes cascaded in high channel count systems in a daisy-chain configuration. • SPI ™-Compatible Serial Interface Package options include a tiny 8mm × 8mm, 64-ball • Operating Temperature Range: BGA and a TQFP-64. The ADS1294/6/8 BGA version –40°C to +85°C is specified over the commercial temperature range of 0 °C to +70°C. The ADS1294R/6R/8R BGA and APPLICATIONS ADS1294/6/8 TQFP versions are specified over the • Medical Instrumentation (ECG, EMG and EEG): industrial temperature range of –40°C to +85°C. Patient monitoring; Holter, event, stress, and vital signs including ECG, AED, telemedicine Bispectral index (BIS), Evoked audio potential (EAP), Sleep study monitor • High-Precision, Simultaneous, Multichannel Signal Acquisition DESCRIPTION The ADS1294/6/8/4R/6R/8R are a family of multichannel, simultaneous sampling, 24-bit, delta-sigma ( ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain amplifiers (PGAs), internal reference, and an onboard oscillator. The ADS1294/6/8/4R/6R/8R 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 © 2010–2012, 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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