Datasheet > ADS1294_14

ADS1294_14

更新时间： 2024-11-26 02:58:35

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德州仪器 - TI		/
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Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements

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ADS1294_14 数据手册

ADS1294, ADS1294R

ADS1296, ADS1296R

ADS1298, ADS1298R

www.ti.com

SBAS459G –JANUARY 2010–REVISED FEBRUARY 2011

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

FEATURES

performance, the ADS1294/6/8/4R/6R/8R family

enables the development of scalable medical

instrumentation systems at significantly reduced size,

power, and overall cost.

•

Eight Low-Noise PGAs and Eight

High-Resolution ADCs (ADS1298, ADS1298R)

•

Low Power: 0.75mW/channel

Input-Referred Noise: 4μV_PP(150Hz BW, G = 6)

Input Bias Current: 200pA

The ADS1294/6/8/4R/6R/8R have a flexible input

multiplexer per channel that can be independently

connected to the internally-generated signals for test,

temperature, and lead-off detection. Additionally, any

configuration of input channels can be selected for

derivation of the right leg drive (RLD) output signal.

The ADS1294/6/8/4R/6R/8R operate at data rates as

high as 32kSPS, thereby allowing the implementation

of software PACE detection. Lead-off detection can

be implemented internal to the device, either with a

pull-up/pull-down resistor or an excitation current

sink/source. Three integrated amplifiers generate the

Wilson Central Terminal (WCT) and the Goldberger

Central Terminals (GCT) required for a standard

12-lead ECG. The ADS1294R/6R/8R versions

Data Rate: 250SPS to 32kSPS

CMRR: –115dB

Programmable Gain: 1, 2, 3, 4, 6, 8, or 12

Unipolar or Bipolar Supplies:

AVDD = 2.7V to 5.25V, DVDD = 1.65V to 3.6V

•

Built-In Right Leg Drive Amplifier, Lead-Off

Detection, WCT, PACE Detection, Test Signals

Integrated Respiration Impedance

Measurement (ADS1294R/6R/8R only)

•

Digital PACE Detection Capability

Built-In Oscillator and Reference

Flexible Power-Down, Standby Modes

SPI™-Compatible Serial Interface

include

a fully-integrated, respiration impedance

measurement function.

Multiple ADS1294/6/8/4R/6R/8R devices can be

cascaded in high channel count systems in a

daisy-chain configuration.

Operating Temperature Range:

–40°C to +85°C

•

Non-Magnetic BGA Package (ADS1294/6/8 and

ADS1194/6/8)

Package options include a tiny 8mm × 8mm, 64-ball

BGA and a TQFP-64. The ADS1294/6/8 BGA version

is specified over the commercial temperature range of

0°C to +70°C. The ADS1294R/6R/8R BGA and

ADS1294/6/8 TQFP versions are specified over the

industrial temperature range of –40°C to +85°C.

APPLICATIONS

•

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

High-Precision, Simultaneous, Multichannel

Signal Acquisition

REF

Test Signals and

Monitors

Reference

ADC1

ADC2

ADC3

ADC4

ADC5

ADC6

ADC7

ADC8

ADS129xR

RESP

DEMOD

SPI

•

Oscillator

DESCRIPTION

MUX

Control

The ADS1294/6/8/4R/6R/8R are

multichannel,

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

family of

simultaneous

sampling, 24-bit,

To Channel

RESP

Wilson

Terminal

WCT

Resp

that

are

commonly

required

medical

ADS129xR

electrocardiogram (ECG) and electroencephalogram

(EEG) applications.

RLD

PACE

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.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...87

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与ADS1294_14相关器件

型号	品牌	获取价格	描述	数据表
ADS1294_15	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294CZXGR	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294CZXGT	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294I	TI	获取价格	Low-Power 8-Channel 16-Bit Analog Front-End for Biopotential Measurements
ADS1294IPAG	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294IPAGR	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294R	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294RIZXGR	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1294RIZXGT	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
ADS1296	TI	获取价格	Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements

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