CBM24AD98Q 8-Channel 24-bit ADC With Integrated ECG Front End

The CBM24AD98Q chip is a low-noise, 24-bit synchronized sampling Δ-Σ analog-to-digital converter (ADC), featuring an integrated programmable gain amplifier (PGA), internal voltage reference, and internal oscillator. The CBM24AD98Q encompasses all common functionalities required for electrocardiogram (ECG) and extracranial electroencephalogram (EEG) applications. With its high level of integration and superior performance, the CBM24AD98Q enables the creation of scalable medical instrumentation systems with significantly reduced size, power consumption, and overall cost.Each channel of the CBM24AD98Q includes a flexible input multiplexer, which can be independently connected to internally generated signals for testing, temperature measurements, and lead-off detection. Furthermore, the chip allows for flexible configuration in generating the right leg drive signal. Integrated within the chip are three amplifiers used to generate the Wilson Central Terminal (WCT) and Goldberger Central Terminal (GCT) required for standard 12-lead ECGs.The CBM24AD98Q supports both low-power and high-precision modes, with data sampling rates ranging from 250 samples per second (SPS) up to 32 kilosamples per second (kSPS). For high-channel count systems, multiple CBM24AD98Q chips can be cascaded in a daisy-chain configuration.The CBM24AD98Q is available in either a TQFP-64 package (10mm10mm) or a QFN-64 package (9mm9mm), with an operating temperature range rated from –40°C to +85°C.

Parameters
Features
Applications

Resolution (Bits):24
Channels:8
Interface type:SPI
Power Consumption:17.5 mW

Eight Low-Noise PGAs and Eight High-Resolution ADCs
Input-Referred Noise: 4 μVPP (150 Hz BW, G = 6)
Input Bias Current: 200 pA
Data Rate: 250 SPS to 32 kSPS
CMRR: –115 dB
Programmable Gain: 1, 2, 4, 6, 8, 12, or 24
Unipolar or Bipolar Supplies:
- AVDD = 2.7 V to 5.5 V
- DVDD = 1.7 V to 3.3 V
Built-In Right Leg Drive Amplifier, Lead-Off Detection, Wilson Center Terminal, Pace Detection, Test Signals
Integrated Respiration Impedance Measurement
Digital Pace Detection Capabilit
Built-In Oscillator and Reference
SPI™-Compatible Serial Interface
ADS1298 Pin Compatible and Program Compatible
Operating Temperature Range: -40 ℃ to +85 ℃

Medical Instrumentation (ECG, EMG, and EEG)
Patient Monitoring; Holter, Event, Stress, and Vital Signs Including ECG
AED, Telemedicine Bispectral Index (BIS)
Evoked Audio Potential (EAP), Sleep Study Monitor

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计算工具

ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算的列表（从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件）。除了可用作单独的工具之外，该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。

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Product number	Rating	Inventory(pcs)	Price	Package	MSL	RoHS	MPQ	Operating Temperature Range (℃)	Order
CBM24AD98Q	Industrial Grade	3000	1~159 \| $ 20.37  160~319$13.91 320~479$11.94 480+$11.24	TQFP-64	MSL 3	RoHS	Tray, 160	-40 to 85	- + Requested quantity exceeds in stock amount Add to cart