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ADS1296R Datasheet(PDF) 5 Page - Texas Instruments

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Part # ADS1296R
Description  Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS1296R Datasheet(HTML) 5 Page - Texas Instruments

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ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com
SBAS459G
– JANUARY 2010 – REVISED FEBRUARY 2011
ELECTRICAL CHARACTERISTICS (continued)
Minimum/maximum specifications apply for all commercial grade (0
°C to +70°C) devices and from –40°C to +85°C for
industrial grades devices. Typical specifications are at +25
°C. All specifications at DVDD = 1.8V, AVDD – AVSS = 3V
(1),
VREF = 2.4V, external fCLK = 2.048MHz, data rate = 500SPS, High-Resolution mode, and gain = 6, unless otherwise noted.
ADS1294, ADS1296, ADS1298
ADS1294R, ADS1296R, ADS1298R
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CHANNEL PERFORMANCE (continued)
AC Performance
Common-mode rejection
fCM = 50Hz, 60Hz
(3)
–105
–115
dB
Power-supply rejection
fPS = 50Hz, 60Hz
90
dB
Crosstalk
fIN = 50Hz, 60Hz
–126
dB
Signal-to-noise ratio (SNR)
fIN = 10Hz input, gain = 6
112
dB
10Hz,
–0.5dBFs
–98
dB
ADS1294R/6R/8R channel 1, 10Hz,
–0.5dBFs
–70
dB
100Hz,
–0.5dBFs(4)
–100
dB
Total harmonic distortion (THD)
ADS1294R/6R/8R channel 1,
–68
dB
100Hz,
–0.5dBFs(4)
ADS1294R/6R/8R channel 1,
–86
dB
100Hz,
–20dBFs(4)
DIGITAL FILTER
–3dB bandwidth
0.262fDR
Hz
Digital filter settling
Full setting
4
Conversions
RIGHT LEG DRIVE (RLD) AMPLIFIER AND PACE AMPLIFIERS
RLD integrated noise
BW = 150Hz
7
μVRMS
PACE integrated noise
BW = 8kHz
20
µVRMS
PACE amplifier crosstalk
Crosstalk between PACE amplifiers
60
dB
Gain bandwidth product
50k
Ω || 10pF load, gain = 1
100
kHz
Slew rate
50k
Ω || 10pF load, gain = 1
0.25
V/
μs
Short-circuit to GND (AVDD = 3V)
270
μA
Short-circuit to supply (AVDD = 3V)
550
μA
PACE and RLD amplifier drive strength
Short-circuit to GND (AVDD = 5V)
490
μA
Short-circuit to supply (AVDD = 5V)
810
μA
Peak swing (AVSS + 0.3V to AVDD + 0.3V)
50
μA
at AVDD = 3V
PACE and RLD current
Peak swing (AVSS + 0.3V to AVDD + 0.3V)
75
μA
at AVDD = 5V
PACE amplifier output resistance
100
Ω
Total harmonic distortion
fIN = 100Hz, gain = 1
–70
dB
Common-mode input range
AVSS + 0.7
AVDD
– 0.3
V
Common-mode resistor matching
Internal 200k
Ω resistor matching
0.1
%
Short-circuit current
±0.25
mA
Quiescent power consumption
Either RLD or PACE amplifier
20
μA
WILSON CENTRAL TERMINAL (WCT) AMPLIFIER
Integrated noise
BW = 150Hz
See Table 5
nV/
√Hz
Gain bandwidth product
See Table 5
kHz
Slew rate
See Table 5
V/s
Total harmonic distortion
fIN = 100Hz
90
dB
Common-mode input range
AVSS + 0.3
AVDD
– 0.3
V
Short-circuit current
Through internal 30k
Ω resistor
±0.25
mA
Quiescent power consumption
See Table 5
μA
(3)
CMRR is measured with a common-mode signal of AVSS + 0.3V to AVDD
– 0.3V. The values indicated are the maximum of the eight
channels.
(4)
Harmonics above the second harmonic are attenuated by the digital filter.
© 2010–2011, Texas Instruments Incorporated
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Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R


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