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ADS1292IPBSR Datasheet(PDF) 1 Page - Texas Instruments

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Part # ADS1292IPBSR
Description  Low-Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS1292IPBSR Datasheet(HTML) 1 Page - Texas Instruments

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Control
Oscillator
SPI
TestSignalsand
Monitors
RLD
Reference
REF
ADC1
ADC2
A1
A2
MUX
¼
¼
ToChannel
RESP
RESP
DEMOD
(ADS1292R)
RESP
MOD
(ADS1292R)
ADS1291
ADS1292
ADS1292R
www.ti.com
SBAS502A – DECEMBER 2011 – REVISED MARCH 2012
Low-Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements
Check for Samples: ADS1291, ADS1292 , ADS1292R
The
ADS1291,
ADS1292,
and
ADS1292R
1
FEATURES
incorporate
all
features
commonly
required
in
23
Two Low-Noise PGAs and
portable,
low-power
medical
electrocardiogram
Two High-Resolution ADCs
(ECG), sports, and fitness applications.
(ADS1292 and ADS1292R)
With high levels of integration and exceptional
Low Power: 335
μW/channel
performance,
the
ADS1291,
ADS1292,
and
Input-Referred Noise: 8
μVPP
ADS1292R enable the creation of scalable medical
(150-Hz BW, G = 6)
instrumentation systems at significantly reduced size,
power, and overall cost.
Input Bias Current: 200 pA
Data Rate: 125 SPS to 8 kSPS
The ADS1291, ADS1292, and ADS1292R have a
flexible input multiplexer per channel that can be
CMRR: –105 dB
independently connected to the internally-generated
Programmable Gain: 1, 2, 3, 4, 6, 8, or 12
signals for test, temperature, and lead-off detection.
Supplies: Unipolar or Bipolar
Additionally, any configuration of input channels can
be selected for derivation of the right leg drive (RLD)
Analog: 2.7 V to 5.25 V
output
signal.
The
ADS1291,
ADS1292,
and
Digital: 1.7 V to 3.6 V
ADS1292R operate at data rates up to 8 kSPS. Lead-
Built-In Right Leg Drive Amplifier, Lead-Off
off detection can be implemented internal to the
Detection, Test Signals
device, using the device internal excitation current
sink/source. The ADS1292R version includes a fully
Integrated Respiration Impedance
integrated
respiration
impedance
measurement
Measurement (ADS1292R)
function.
Built-In Oscillator and Reference
The devices are packaged in a 5-mm × 5-mm, 32-pin
Flexible Power-Down, Standby Mode
thin quad flat pack (TQFP). Operating temperature is
SPI™-Compatible Serial Interface
specified from –40°C to +85°C.
Operating Temperature Range: –40°C to +85°C
APPLICATIONS
Medical Instrumentation (ECG) including:
Patient monitoring: Holter, event, stress,
and vital signs including ECG, AED, and
telemedicine
Sports and fitness
(heart rate, respiration, and ECG)
High-Precision, Simultaneous, Multichannel
Signal Acquisition
DESCRIPTION
The
ADS1291,
ADS1292,
and
ADS1292R
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.
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 © 2011–2012, 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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