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ADS1298 Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza ADS1298
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
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ADS1298 Datasheet(HTML) 5 Page - Texas Instruments

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ADS1294
ADS1296
ADS1298
www.ti.com
SBAS459D – JANUARY 2010 – REVISED MAY 2010
ELECTRICAL CHARACTERISTICS (continued)
Minimum/maximum specifications apply from 0°C to +70°C. Typical specifications are at +25°C. All specifications at DVDD =
1.8V, AVDD – AVSS = 3V
(1), V
REF = 2.4V, external fCLK = 2.048MHz, data rate = 500SPS, high resolution mode, and gain =
6, unless otherwise noted.
ADS1294, ADS1296, ADS1298
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 (industrial grade
±5
%
versions only)
Internal oscillator start-up time
20
ms
Internal oscillator power consumption
120
mW
External clock input frequency
CLKSEL pin = 0
0.5
2.048
2.25
MHz
DIGITAL INPUT/OUTPUT (DVDD = 1.65V to 3.6V)
VIH
0.8DVDD
DVDD + 0.1
V
VIL
–0.1
0.2DVDD
V
Logic level
VOH
IOH = –500mA
DVDD – 0.4
V
VOL
IOL = +500mA
0.4
V
Input current (IIN)
0V < VDigitalInput < DVDD
–10
+10
mA
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)
AVDD – AVSS = 3V
2.75
mA
IAVDD
High-
AVDD – AVSS = 5V
3.1
mA
Resolution
DVDD = 3.0V
0.5
mA
mode
IDVDD
DVDD = 1.8V
0.3
mA
AVDD – AVSS = 3V
1.8
mA
IAVDD
AVDD – AVSS = 5V
2.1
mA
Low-Power
mode
DVDD = 3.0V
0.5
mA
IDVDD
DVDD = 1.8V
0.3
mA
Copyright © 2010, Texas Instruments Incorporated
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