ADS1194,ADS1196,ADS1198

Part No.:
ADS1194,ADS1196,ADS1198
Download:
Download
Description:
Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
File Size:
963 K
Page:
75 Pages
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Maker:
TI [ TEXAS INSTRUMENTS ]
PCB Prototype

July 19, 2018:

ADS54T01

ADSP-21366SKBC-ENG

ADT7302ARTZ-REEL7

ADT7485AARMZ-REEL7

ADUM5400CRWZ2

ADV7850KBCZ-5

AEQ75Y48N-63

AEZ1000RE

AK8130A

AM50-0006V2

AM55-0003TR

AN-6206

PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1
ADS1294
ADS1296
ADS1298
www.ti.com
SBAS459D – JANUARY 2010 – REVISED MAY 2010
Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
Check for Samples:
ADS1294, ADS1296, ADS1298
1
FEATURES
Eight Low-Noise PGAs and
Eight High-Resolution ADCs (ADS1298)
Low Power: 0.75mW/channel
Input-Referred Noise: 4mV
PP
(150Hz BW, G = 6)
Input Bias Current: 200pA
Data Rate: 250SPS to 32kSPS
CMRR: –115dB
Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
Supplies: Unipolar or Bipolar
– Analog: 2.7V to 5.25V
– Digital: 1.65V to 3.6V
Built-In Right Leg Drive Amplifier, Lead-Off
Detection, WCT, Test Signals
Pace Detection
Digital Pace Detection Capability
Built-In Oscillator and Reference
Flexible Power-Down, Standby Mode
SPI™-Compatible Serial Interface
Operating Temperature Range: 0°C to +70°C
(–40°C to +85°C grade available soon)
23
With its high levels of integration and exceptional
performance, the ADS1294/6/8 family enables the
creation of scalable medical instrumentation systems
at significantly reduced size, power, and overall cost.
The ADS1294/6/8 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
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.
Multiple ADS1294/6/8 devices can be cascaded in
high channel count systems in a daisy-chain
configuration.
Package options include a tiny 8mm × 8mm, 64-ball
BGA and a TQFP-64. Both packages are specified
from 0°C to +70°C (–40°C to +85°C for TQFP
industrial grade version available soon).
REF
Test Signals and
Monitors
APPLICATIONS
Medical Instrumentation (ECG and EEG)
including:
– Patient monitoring; Holter, event, stress,
and vital signs ECG, AED, telemedicine,
fetal ECG
– Bispectral index (BIS), Evoked audio
potential (EAP), Sleep study monitor
High-Precision, Simultaneous, Multichannel
Signal Acquisition
Reference
SPI
A1
ADC1
SPI
A2
ADC2
A3
ADC3
CLK
INPUTS
A4
MUX
ADC4
Control
Oscillator
A5
ADC5
GPIO AND CONTROL
A6
ADC6
DESCRIPTION
A7
ADC7
The ADS1294/6/8 are a family of 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
ADS1294/6/8 incorporate all of the features that are
commonly required in medical electrocardiogram
(ECG) and electroencephalogram (EEG) applications.
1
A8
To Channel
WCT
Wilson
Terminal
ADC8
RESP
¼
¼
¼
RLD
PACE
2
3
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.
Copyright © 2010, Texas Instruments Incorporated
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.