Datasheet

DRDY
CLK
CLKSEL
START
MUX
Oscillator
Power-SupplySignal
SPI
DVDD
DGND
BIAS
INV
BIAS
OUT
BIAS
REF
Lead-OffExcitation Source
GPIO1
GPIO4
GPIO3
CS
SCLK
DIN
DOUT
GPIO2
IN8P
IN8N
IN7P
IN7N
IN6P
IN6N
IN5P
IN5N
IN4P
IN4N
IN3P
IN3N
IN2P
IN2N
IN1P
IN1N
Low-Noise
PGA1
DS
ADC1
TemperatureSensorInput
BIAS
Amplifier
Reference
VREFP VREFN
Control
PWDN
RESET
DS
ADC2
DS
ADC3
DS
ADC4
DS
ADC5
DS
ADC6
DS
ADC7
DS
ADC8
AVDD
AVDD1
AVSS AVSS1
TestSignal
BIASIN
SRB2
SRB1
Low-Noise
PGA8
Low-Noise
PGA7
Low-Noise
PGA6
Low-Noise
PGA5
Low-Noise
PGA4
Low-Noise
PGA3
Low-Noise
PGA2
ADS1299
www.ti.com SBAS499A –JULY 2012–REVISED AUGUST 2012
Figure 18. Functional Block Diagram
Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): ADS1299