ADS1178IPAPR ,Octal, Simultaneous Sampling, 16-Bit Analog-to-Digital Converter 64-HTQFP -40 to 85FEATURES DESCRIPTION234• Simultaneously Sample Four/Eight ChannelsThe ADS1174 (quad) and ADS1178 (o ..
ADS1178IPAPT ,Octal, Simultaneous Sampling, 16-Bit Analog-to-Digital Converter 64-HTQFP -40 to 85ELECTRICAL CHARACTERISTICSLimit specifications at T = –40°C to +105°C. Typical specifications at T ..
ADS1178IPAPT ,Octal, Simultaneous Sampling, 16-Bit Analog-to-Digital Converter 64-HTQFP -40 to 85MAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedPARAMETER ADS1174 ..
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ADS1198CPAGR ,Low-Noise, 8 Channel, 16 Bit Analog Front End for ECG/EEG Measurements 64-TQFP 0 to 70ELECTRICAL CHARACTERISTICSMinimum/maximum specifications apply from 0°C to +70°C. Typical specifica ..
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ADS1178IPAPR-ADS1178IPAPT
Octal, Simultaneous Sampling, 16-Bit Analog-to-Digital Converter
ADS1174 ADS1178
1FEATURES
APPLICATIONSTEST[1:0]
FORMAT[2:0]
CLK
SYNC
PWDN[8:1]
CLKDIV
IOVDD
DGNDAGND
DRDY/FSYNC
SCLK
DOUT[8:1]
DIN
Input8
PWDN[4:1]
ADS1178Four
Digital
Filters
AVDD DVDD
TEST[1:0]
FORMAT[2:0]
CLK
SYNC
CLKDIV
Control
Logic
SPI
and
Frame-
Sync
Interface
IOVDD
DGNDAGND
DRDY/FSYNC
SCLK
DOUT[4:1]
DIN
ADS1174MODEMODE
VREFP VREFN
Input2
Input1
Input4
Input3
ADS1174
ADS1178
www.ti.com........................................................................................................................................ SBAS373B–OCTOBER 2007–REVISED SEPTEMBER 2008
Quad/Octal, Simultaneous Sampling, 16-Bit Analog-to-Digital Converters
234• Simultaneously Sample and ADS1178 analog-to-digital•
Selectable Operatingupto 52k samples-per-second
High-Speed: 52kSPS Data Rate, 31mW/ch sampling
Low-Power: 10kSPS devices•
AC Performance: also compatible
25kHz Bandwidth ADS1274 and
97dB SNR–105dB THD offers near•
DC Performance: SNR, –105dB
2μV/°C Offset Drift 0.005dB passband
2ppm/°C Gain Drift Digital Filter:Linear Phase Response (2μV/°C offset,
Passband Ripple: ±0.005dB The on-chip
Stop Band Attenuation: provides a usable signal the Nyquist rate•
Selectable SPI™or while suppressing
Interface•
Simple Pin-Driven Control for optimization•
Low Sampling Aperture Error mode (31mW/Ch•
Specified from –40°Cto +105°Cat 10kSPS).•
Analog Supply: 5V pin allows•
I/O Supply: 1.8Vto 3.3V and synchronized•
Digital Core Supply: 1.8V Frame-Sync serialis fully specified (–40°Cto +105°C) PowerPAD™•
3-Phase Power Monitors Defibrillators and ECG Monitors Coriolis Flow Meters Vibration/Modal Analysis