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ADS1296R Arkusz danych(PDF) 7 Page - Texas Instruments

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Numer części ADS1296R
Szczegółowy opis  Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

ADS1296R Arkusz danych(HTML) 7 Page - Texas Instruments

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ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com
SBAS459H
– JANUARY 2010 – REVISED OCTOBER 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
CLOCK
Internal oscillator clock frequency
Nominal frequency
2.048
MHz
TA = +25°C
±0.5
%
0
°C ≤ TA ≤ +70°C
±2
%
Internal clock accuracy
–40°C ≤ TA ≤ +85°C,
±2.5
%
ADS1298I industrial grade version only
Internal oscillator start-up time
20
μs
Internal oscillator power consumption
120
μW
External clock input frequency
CLKSEL pin = 0
1.94
2.048
2.25
MHz
DIGITAL INPUT/OUTPUT (DVDD = 1.65V to 3.6V)
Logic level
VIH
0.8DVDD
DVDD + 0.1
V
VIL
–0.1
0.2DVDD
V
VOH
IOH = –500μA
DVDD
– 0.4
V
VOL
IOL = +500μA
0.4
V
Input current (IIN)
0V
< VDigitalInput < DVDD
–10
+10
μA
POWER-SUPPLY REQUIREMENTS
Analog supply (AVDD
– AVSS)
2.7
3.0
5.25
V
Digital supply (DVDD)
1.65
1.8
3.6
V
AVDD
– DVDD
–2.1
3.6
V
SUPPLY CURRENT (RLD, WCT, and PACE Amplifiers Turned Off)
High-Resolution mode (ADS1298)
AVDD
– AVSS = 3V
2.75
mA
IAVDD
AVDD
– AVSS = 5V
3.1
mA
DVDD = 3.0V
0.5
mA
IDVDD
DVDD = 1.8V
0.3
mA
Low-Power mode (ADS1298)
AVDD
– AVSS = 3V
1.8
mA
IAVDD
AVDD
– AVSS = 5V
2.1
mA
DVDD = 3.0V
0.5
mA
IDVDD
DVDD = 1.8V
0.3
mA
POWER DISSIPATION (Analog Supply = 3V, RLD, WCT, and PACE Amplifiers Turned Off)
Quiescent power dissipation
High-Resolution mode
8.8
9.5
mW
ADS1298/8R
Low-Power mode (250SPS)
6.0
7.0
mW
High-Resolution mode
7.2
7.9
mW
ADS1296/6R
Low-Power mode
5.3
6.6
mW
High-Resolution mode
5.4
6
mW
ADS1294/4R
Low-Power mode
4.1
4.4
mW
Power-down
10
μW
Standby mode
2
mW
Quiescent channel power
PGA + ADC
818
μW
Copyright
© 2010–2011, Texas Instruments Incorporated
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Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R


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