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ADS1298IPAGR Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza ADS1298IPAGR
Descripción Electrónicos  Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

ADS1298IPAGR Datasheet(HTML) 1 Page - Texas Instruments

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background image
Control
Oscillator
SPI
TestSignalsand
Monitors
PACE
RLD
Wilson
Terminal
WCT
Reference
REF
ADC7
ADC8
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
A7
A8
A1
A2
A3
A4
A5
A6
MUX
¼
¼
¼
ToChannel
RESP
Resp
RESP
DEMOD
ADS129xR
ADS129xR
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com
SBAS459H
– JANUARY 2010 – REVISED OCTOBER 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
1
FEATURES
performance,
the
ADS1294/6/8/4R/6R/8R
family
23
Eight Low-Noise PGAs and Eight
enables
the
development
of
scalable
medical
High-Resolution ADCs (ADS1298, ADS1298R)
instrumentation systems at significantly reduced size,
Low Power: 0.75mW/channel
power, and overall cost.
Input-Referred Noise: 4
μVPP (150Hz BW, G = 6)
The ADS1294/6/8/4R/6R/8R have a flexible input
multiplexer per channel that can be independently
Input Bias Current: 200pA
connected to the internally-generated signals for test,
Data Rate: 250SPS to 32kSPS
temperature, and lead-off detection. Additionally, any
CMRR:
–115dB
configuration of input channels can be selected for
Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
derivation of the right leg drive (RLD) output signal.
The ADS1294/6/8/4R/6R/8R operate at data rates as
Unipolar or Bipolar Supplies:
high as 32kSPS, thereby allowing the implementation
AVDD = 2.7V to 5.25V, DVDD = 1.65V to 3.6V
of software PACE detection. Lead-off detection can
Built-In Right Leg Drive Amplifier, Lead-Off
be implemented internal to the device, either with a
Detection, WCT, PACE Detection, Test Signals
pull-up/pull-down resistor or an excitation current
sink/source. Three integrated amplifiers generate the
Integrated Respiration Impedance
Wilson Central Terminal (WCT) and the Goldberger
Measurement (ADS1294R/6R/8R only)
Central Terminals (GCT) required for a standard
Digital PACE Detection Capability
12-lead
ECG.
The
ADS1294R/6R/8R
versions
Built-In Oscillator and Reference
include
a
fully-integrated,
respiration
impedance
measurement function.
Flexible Power-Down, Standby Modes
SPI
™-Compatible Serial Interface
Multiple
ADS1294/6/8/4R/6R/8R
devices
can
be
cascaded in high channel count systems in a
Operating Temperature Range:
daisy-chain configuration.
–40°C to +85°C
Package options include a tiny 8mm
× 8mm, 64-ball
APPLICATIONS
BGA and a TQFP-64. The ADS1294/6/8 BGA version
is specified over the commercial temperature range of
Medical Instrumentation (ECG, EMG and EEG):
0
°C to +70°C. The ADS1294R/6R/8R BGA and
Patient monitoring; Holter, event, stress, and
ADS1294/6/8 TQFP versions are specified over the
vital signs including ECG, AED, telemedicine
industrial temperature range of
–40°C to +85°C.
Bispectral index (BIS), Evoked audio potential
(EAP), Sleep study monitor
High-Precision, Simultaneous, Multichannel
Signal Acquisition
DESCRIPTION
The
ADS1294/6/8/4R/6R/8R
are
a
family
of
multichannel,
simultaneous
sampling,
24-bit,
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
that
are
commonly
required
in
medical
electrocardiogram (ECG) and electroencephalogram
(EEG) applications.
1
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.
2
SPI is a trademark of Motorola.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
© 2010–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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