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ADS1293CISQ Arkusz danych(PDF) 1 Page - Texas Instruments

Numer części ADS1293CISQ
Szczegółowy opis  ADS1293 Low Power, 3-Channel, 24-Bit Analog Front End for Biopotential Measurements
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ADS1293CISQ Arkusz danych(HTML) 1 Page - Texas Instruments

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CH1-ECG
CH2-ECG
CH3-ECG
Lead off
detect
-
+
EMI
filter
CSB
SCLK
SDI
SDO
OSC
IN1
Flexible
Routing
Switch
Test
Ref
EMI
filter
IN2
EMI
filter
IN3
EMI
filter
IN4
EMI
filter
IN5
EMI
filter
IN6
Batt.
Mon
POR
DRDYB
CLK
ALARMB
DIGITAL
CONTROL AND
POWER
MANAGEMENT
Wilson
ref.
CM
Detect
Digital
Filter
Σ∆
Modulator
Digital
Filter
Σ∆
Modulator
-
+
-
+
InA
InA
InA
WCT
-
+
CH4- Analog Pace
WILSON_EN
CMDET_EN
REF
LOD_EN
CH1-Pace
CH2-Pace
CH3-Pace
Digital
Filter
Σ∆
Modulator
REF for
CM & RLD
RLD
Amp.
PACE2
RLDIN
PACE2WCT
WILSON_CN
CH1
CH2
CH3
CH4
InA
ADS1293
www.ti.com
SNAS602B – FEBRUARY 2013 – REVISED MARCH 2013
ADS1293 Low Power, 3-Channel, 24-Bit Analog Front End for Biopotential Measurements
Check for Samples: ADS1293
1
FEATURES
DESCRIPTION
The ADS1293 incorporates all features commonly
3 High Resolution Digital ECG Channels with
required in portable, low-power medical, sports, and
Simultaneous Pace Output
fitness electrocardiogram (ECG) applications. With
EMI Hardened Inputs
high
levels
of
integration
and
exceptional
Low Power: 0.3mW/channel
performance, the ADS1293 enables the creation of
scalable
medical
instrumentation
systems
at
Input-Referred Noise: 7µVpp (40Hz Bandwidth)
significantly reduced size, power, and overall cost.
Input Bias Current: 175pA
The ADS1293 features three high-resolution channels
Data Rate: Up to 25.6ksps
capable of operating up to 25.6ksps. Each channel
Differential Input Voltage Range: ±400mV
can be independently programmed for a specific
Analog Supply Voltage: 2.7V to 5.5V
sample rate and bandwidth allowing users to optimize
the configuration for performance and power. All input
Digital I/O Supply Voltage: 1.65V to 3.6V
pins incorporate an EMI filter and can be routed to
Right Leg Drive Amplifier
any channel via a flexible routing switch. Flexible
AC and DC Lead-Off Detection
routing also allows independent lead-off detection,
right leg drive, and Wilson/Goldberger reference
Wilson and Goldberger Terminals
terminal generation without the need to reconnect
ALARMB Pin for Interrupt Driven Diagnostics
leads externally. A fourth channel allows external
Battery Voltage Monitoring
analog pace detection for applications that do not
utilize digital pace detection.
Built-In Oscillator and Reference
Flexible Power-Down and Standby Modes
The ADS1293 incorporates a self-diagnostics alarm
system to detect when the system is out of the
operating conditions range. Such events are reported
APPLICATIONS
to error flags. The overall status of the error flags is
Portable 1/2/3/5/6/7/8/12-Lead ECG
available as a signal on a dedicated ALARMB pin.
Patient vital sign monitoring: holter, event,
The device is packaged in a 5-mm × 5-mm × 0.8-mm,
stress, and telemedicine
28-pin LLP. Operating temperature ranges from
Automated External Defibrillator
–20°C to 85°C.
Sports and fitness (heart rate and ECG)
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2013, 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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