Low-Noise, 8-Channel, 24-Bit Analog-to-Digital Converter for Biopotential Measurements
Product details
Parameters
Package | Pins | Size
Features
- Up to Eight Low-Noise PGAs and Eight High-Resolution Simultaneous-Sampling ADCs
- Input-Referred Noise: 1 µVPP (70-Hz BW)
- Input Bias Current: 300 pA
- Data Rate: 250 SPS to 16 kSPS
- CMRR: –110 dB
- Programmable Gain: 1, 2, 4, 6, 8, 12, or 24
- Unipolar or Bipolar Supplies:
- Analog: 4.75 V to 5.25 V
- Digital: 1.8 V to 3.6 V
- Built-In Bias Drive Amplifier,
Lead-Off Detection, Test Signals - Built-In Oscillator
- Internal or External Reference
- Flexible Power-Down, Standby Mode
- Pin-Compatible with the ADS129x
- SPI-Compatible Serial Interface
- Operating Temperature Range: –40°C to +85°C
Description
The ADS1299-4, ADS1299-6, and ADS1299 devices are a family of four-, six-, and eight-channel, low-noise, 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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ADS1299-x Low-Noise, 4-, 6-, 8-Channel, 24-Bit, Analog-to-Digital Converter for EEG and Biopotential Measurements datasheet (Rev. C) | Jan. 25, 2017 |
E-book | Fundamentals of Precision ADC Noise Analysis | Jun. 19, 2020 | |
Application note | Digital Filter Types in Delta-Sigma ADCs | Jun. 27, 2017 | |
Technical articles | Smart sensing with ultra-low-power MCUs – part 4: Holter monitor | May 08, 2017 | |
User guide | ADS1299EEG-FE EEG Front-End Performance Demonstration Kit (Rev. B) | Jan. 21, 2016 | |
Technical articles | TI technology breaks down the barriers of sign language | Oct. 08, 2015 | |
Technical articles | Offset correction improves the next generation of heart-rate smart watches | Aug. 24, 2015 | |
Technical articles | My New Year’s Resolution: Benefit from the high resolution delta-sigma ADCs | Jan. 06, 2015 | |
Application note | Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier | Jul. 06, 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADS1299EEGFE-PDK is a demonstration kit for the ADS1299, an eight channel, simultaneous sampling, 24-bit, delta-sigma (Δ Σ) analog-to-digital converter (ADC) with a built-in programmable gain amplifier (PGA), internal reference, and an on-board oscillator. The ADS1299 contains the (...)
Features
- Easy-to-use evaluation software for Microsoft™ Windows XP or Windows 7
- Built-in analysis tools including oscilloscope, FFT, and histogram displays
- Flexible input configurations and data rate options
- Ability to export data in simple test files for post processing
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TQFP (PAG) | 64 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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