ADS1191

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 FEATURES 1 23 Two Low-Noise PGAs and Two High-Resolution ADCs (ADS1192) Low Power: 335 μW/channel Input-Referred Noise: 24 μVPP (150-Hz BW, G = 6) Input Bias Current: 1 nA Data Rate: 125 SPS to 8 kSPS CMRR: –95 dB Programmable Gain: 1, 2, 3, 4, 6, 8, or 12 Supplies: Unipolar or Bipolar – Analog: 2.7 V to 5.25 V – Digital: 1.7 V to 3.6 V Built-In Right Leg Drive Amplifier, Lead-Off Detection, Test Signals Built-In Oscillator and Reference Flexible Power-Down, Standby Mode 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. The ADS1191/2 incorporate all of the features that are commonly required in portable, low-power medical electrocardiogram (ECG), sports, and fitness applications. With its high levels of integration and exceptional performance, the ADS1191/2 family enables the creation of scalable me...