The ADS1299-6PAGR is a low-noise, 6-channel, 24-bit analog-to-digital converter (ADC) manufactured by Texas Instruments (TI). Belonging to the ADS1299 series, this device is specifically designed for biopotential measurement applications, including electroencephalography (EEG), electrocardiography (ECG), and other precision biomedical signal acquisition systems.
The ADS1299-6PAGR integrates six high-resolution simultaneous-sampling delta-sigma (Δ-Σ) ADC channels and programmable gain amplifiers (PGAs), providing a highly integrated solution for low-level analog signal acquisition. Its 24-bit resolution enables precise measurement of small biological electrical signals, making it suitable for applications requiring high accuracy and low-noise performance.
The device features an input-referred noise of 1μVPP within a 70Hz bandwidth and a common-mode rejection ratio (CMRR) of -110dB. Its low input bias current of 300pA helps minimize loading effects on high-impedance signal sources, supporting accurate acquisition of sensitive biopotential signals.
The integrated programmable gain amplifier provides selectable gain settings of 1, 2, 4, 6, 8, 12, and 24, allowing flexible signal amplification according to different input signal levels. The device supports data rates ranging from 250 samples per second (SPS) to 16,000 samples per second (SPS), accommodating various biomedical signal acquisition requirements.
The ADS1299-6PAGR incorporates a flexible input multiplexer for each channel, allowing inputs to be connected to internally generated test signals, temperature monitoring signals, and lead-off detection circuits. It also integrates a bias drive amplifier to help manage common-mode interference and improve signal acquisition performance.
Additional integrated features include an internal oscillator, internal or external voltage reference selection, lead-off detection, test signal generation, and flexible power-down and standby modes. These functions help simplify circuit design and reduce the need for external components.
The device communicates through an SPI-compatible serial interface, providing convenient integration with microcontrollers, digital signal processors (DSPs), and embedded processing systems. Multiple ADS1299 devices can also be connected in a daisy-chain configuration to support systems requiring a higher number of acquisition channels.
The ADS1299-6PAGR supports analog supply voltages from 4.75V to 5.25V and digital supply voltages from 1.8V to 3.6V. It operates across an industrial temperature range of -40°C to +85°C.
The device comes in a 64-pin TQFP (PAG) surface-mount package with a nominal body size of 10 × 10mm, making it suitable for compact and high-performance electronic measurement systems.
The Texas Instruments ADS1299-6PAGR is suitable for EEG monitoring systems, ECG acquisition equipment, sleep study monitors, fetal ECG instruments, bispectral index (BIS) monitoring systems, evoked auditory potential (EAP) measurement equipment, and other precision biopotential measurement applications.
Key Features:
- Manufacturer: Texas Instruments (TI)
- Part Number: ADS1299-6PAGR
- Product Series: ADS1299
- Product Type: Low-Noise Biopotential Analog-to-Digital Converter
- ADC Resolution: 24-Bit
- Number of Input Channels: 6
- ADC Architecture: Delta-Sigma (Δ-Σ)
- Sampling Mode: Simultaneous Sampling
- Data Rate: 250 SPS to 16 kSPS
- Input-Referred Noise: 1μVPP (70Hz Bandwidth)
- Programmable Gain: 1, 2, 4, 6, 8, 12, 24
- Common-Mode Rejection Ratio: -110dB
- Input Bias Current: 300pA
- Analog Supply Voltage: 4.75V to 5.25V
- Digital Supply Voltage: 1.8V to 3.6V
- Communication Interface: SPI
- Integrated Functions: PGA, Internal Reference, Onboard Oscillator
- Additional Features: Lead-Off Detection, Bias Drive Amplifier, Test Signal Generation
- Package: TQFP-64 (PAG)
- Package Body Size: 10 × 10mm
- Number of Pins: 64
- Operating Temperature: -40°C to +85°C
- Mounting Type: Surface Mount (SMD/SMT)
- Packaging: Large Tape and Reel
- Standard Reel Quantity: 1,500 Pieces
- Environmental Compliance: RoHS / REACH Compliant
Typical Applications:
- Electroencephalography (EEG) systems
- Electrocardiography (ECG) equipment
- Biopotential measurement systems
- Sleep study monitoring equipment
- Fetal ECG monitoring
- Bispectral index (BIS) monitoring
- Evoked auditory potential (EAP) measurement
- Biomedical signal acquisition
- Precision medical instrumentation
- Multi-channel physiological monitoring systems
The Texas Instruments ADS1299-6PAGR combines 6-channel, 24-bit simultaneous-sampling conversion, low input-referred noise, and integrated programmable gain amplifiers in a highly integrated analog front end. Its flexible input configuration, built-in bias drive circuitry, lead-off detection, and SPI interface make it a practical solution for electronic manufacturers, biomedical equipment developers, hardware engineers, and procurement teams seeking high-resolution biopotential signal acquisition components.
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