ADS1299-4PAG

The ADS1299-4, ADS1299-6, and ADS1299 devices
are a family of four-, six-, and eight-channel, lownoise, 24-bit, simultaneous-sampling delta-sigma (ΔΣ)
analog-to-digital converters (ADCs) with a built-in
programmable gain amplifier (PGA), internal
reference, and an onboard oscillator. The ADS1299-x
incorporates all commonly-required features for
extracranial electroencephalogram (EEG) and
electrocardiography (ECG) applications. With its high
levels of integration and exceptional performance, the
ADS1299-x enables the creation of scalable medical
instrumentation systems at significantly reduced size,
power, and overall cost.
The ADS1299-x has a flexible input multiplexer per
channel that can be independently connected to the
internally-generated signals for test, temperature, and
lead-off detection. Additionally, any configuration of
input channels can be selected for derivation of the
patient bias output signal. Optional SRB pins are
available to route a common signal to multiple inputs
for a referential montage configuration. The
ADS1299-x operates at data rates from 250 SPS to
16 kSPS. Lead-off detection can be implemented
internal to the device using an excitation current sink
or source.
Multiple ADS1299-4, ADS1299-6, or ADS1299
devices can be cascaded in high channel count
systems in a daisy-chain configuration. The
ADS1299-x is offered in a TQFP-64 package
specified from –40°C to +85°C.