AnalogySemi ADX923
The ADX920/1/2/3 devices are 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 ADX920/1/2/3 devices incorporate all features commonly required in portable, lowpower medical electrocardiogram (ECG), sports, and fitness applications. With high levels of integration and exceptional performance, the ADX920/1/2/3 devices enable the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.| Part No. | ADX923 |
|---|---|
| Datasheet | ADX923 Download |
| Manufacturer | AnalogySemi |
| Description | 24-Bit Analog Front-End |
| Buy | Stock & Price |
FEATURES
● Three low-noise (ADX923) PGAs and two highresolution ADCs (ADX922/3)● Input-referred noise: 8.6μVPP (G = 6)
● Input bias current: 100pA
● Data rate: 125SPS to 8kSPS
● CMRR: 117dB; THD: –107dB
● Programmable gain: 1, 2, 3, 4, 6, 8, or 12
● Supplies: unipolar or bipolar Analog: 2.7V to 5.5V Digital: 1.65V to 3.6V
● Built-in right leg drive amplifier, lead-off detection, test signals
● Integrated respiration impedance measurement (ADX922/3)
● Electrode Rotation mode (ERM) to implement time-division multiplexing LEAD-I, LEAD-II, and LEAD-III measurements (ADX923)
● Integrated digital AC lead-off measurement and software AC lead-off measurement (ADX922/3)
● Integrated analog PACE measurement (ADX921/2/3)
● Flexible power mode High Resolution mode High Speed mode (ADX921/2/3)
● Built-in oscillator and reference
● Supply monitor, internal temp sensor, OSC fault detection, overrange detection
● Flexible power-down, standby mode
● SPI™-compatible serial interface, timeout reset
● Cy...
