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ADS1191IPBS Datasheet(PDF) 1 Page - Texas Instruments |
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ADS1191IPBS Datasheet(HTML) 1 Page - Texas Instruments |
1 / 68 page Control Oscillator SPI Test Signals and Monitors RLD Reference REF ADC1 ADC2 A1 A2 MUX To Channel ADS1191 ADS1192 www.ti.com SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012 Low-Power, 2-Channel, 16-Bit Analog Front-End for Biopotential Measurements Check for Samples: ADS1191, ADS1192 The ADS1191/2 incorporate all of the features that 1 FEATURES are commonly required in portable, low-power 23 • Two Low-Noise PGAs and medical electrocardiogram (ECG), sports, and fitness Two High-Resolution ADCs (ADS1192) applications. • Low Power: 335 μW/channel With its high levels of integration and exceptional • Input-Referred Noise: 24 μVPP performance, the ADS1191/2 family enables the (150-Hz BW, G = 6) creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost. • Input Bias Current: 1 nA • Data Rate: 125 SPS to 8 kSPS The ADS1191/2 have a flexible input multiplexer per channel that can be independently connected to the • CMRR: –95 dB internally-generated signals for test, temperature, and • Programmable Gain: 1, 2, 3, 4, 6, 8, or 12 lead-off detection. Additionally, any configuration of • Supplies: Unipolar or Bipolar input channels can be selected for derivation of the right leg drive (RLD) output signal. The ADS1191/2 – Analog: 2.7 V to 5.25 V operate at data rates up to 8 kSPS. Lead-off – Digital: 1.7 V to 3.6 V detection can be implemented internal to the device, • Built-In Right Leg Drive Amplifier, Lead-Off using the device internal excitation current Detection, Test Signals sink/source. • Built-In Oscillator and Reference The devices are packaged in a 5-mm × 5-mm, 32-pin • Flexible Power-Down, Standby Mode thin quad flat pack (TQFP). Operating temperature is specified from –40°C to +85°C. • SPI™-Compatible Serial Interface • Operating Temperature Range: –40°C to +85°C APPLICATIONS • Medical Instrumentation (ECG) including: – Patient monitoring; Holter, event, stress, and vital signs including ECG, AED, telemedicine – Sports and fitness (heart rate, respiration, and ECG) DESCRIPTION The ADS1191/2 are a family of multichannel, simultaneous sampling, 16-bit, delta-sigma ( ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. 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 © 2011–2012, 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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