ADS1299

ACTIVE

Low-Noise, 8-Channel, 24-Bit Analog-to-Digital Converter for Biopotential Measurements

Product details

Applications BIS, EAP, EEG, Fetal ECG, Sleep study monitor Number of input channels 8 Resolution (Bits) 24 Number of LEDs 0 Interface type SPI Operating temperature range (°C) -40 to 85 Rating Catalog
Applications BIS, EAP, EEG, Fetal ECG, Sleep study monitor Number of input channels 8 Resolution (Bits) 24 Number of LEDs 0 Interface type SPI Operating temperature range (°C) -40 to 85 Rating Catalog
TQFP (PAG) 64 144 mm² 12 x 12
  • 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
  • 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

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.

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.

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Technical documentation

Design & development

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Evaluation board

ADS1299EEGFE-PDK — ADS1299 Performance Demonstration Kit

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 (...)

User guide: PDF
Simulation model

ADS129x IBIS Model. (Rev. A)

SBAM163A.ZIP (145 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
TQFP (PAG) 64 View options

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