Overview
The Texas Instruments ADS1299IPAGR is a low-noise, 8-channel, 24-bit analog-to-digital converter (ADC) designed specifically for biopotential measurements such as electroencephalography (EEG) and electrocardiography (ECG). This device is part of the ADS1299 family, which includes four-, six-, and eight-channel variants. It integrates all the necessary features for medical instrumentation systems, offering high levels of integration, exceptional performance, and reduced size, power, and overall cost.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 8 | - |
| Resolution | 24 Bits | - |
| Data Rate | 250 SPS to 16 kSPS | - |
| Input-Referred Noise | 1 μVPP (70-Hz BW) | - |
| Input Bias Current | ±300 pA | - |
| CMRR | –110 dB | - |
| Programmable Gain | 1, 2, 4, 6, 8, 12, or 24 | - |
| Analog Supply Voltage | 4.75 V to 5.25 V | V |
| Digital Supply Voltage | 1.8 V to 3.6 V | V |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package | TQFP-64 | - |
Key Features
- Up to eight low-noise programmable gain amplifiers (PGAs) and eight high-resolution simultaneous-sampling ADCs.
- Built-in bias drive amplifier, lead-off detection, and test signals.
- Built-in oscillator and internal or external reference options.
- Flexible power-down and standby modes.
- PIN-compatible with the ADS129x family.
- SPI-compatible serial interface.
- Unipolar or bipolar supplies supported.
- Flexible input multiplexer per channel for test, temperature, and lead-off detection.
Applications
The ADS1299IPAGR is primarily designed for biopotential measurements, including:
- Electroencephalography (EEG)
- Electrocardiography (ECG)
- Other medical instrumentation systems requiring high-resolution and low-noise ADCs.
Q & A
- What is the resolution of the ADS1299IPAGR?
The ADS1299IPAGR has a resolution of 24 bits. - What are the data rate options for the ADS1299IPAGR?
The data rate can range from 250 SPS to 16 kSPS. - What is the input-referred noise of the ADS1299IPAGR?
The input-referred noise is 1 μVPP (70-Hz BW). - What are the programmable gain settings for the ADS1299IPAGR?
The gain can be set to 1, 2, 4, 6, 8, 12, or 24. - What is the operating temperature range of the ADS1299IPAGR?
The operating temperature range is –40°C to +85°C. - What type of package does the ADS1299IPAGR come in?
The ADS1299IPAGR comes in a TQFP-64 package. - Does the ADS1299IPAGR support cascading for high channel count systems?
Yes, multiple ADS1299 devices can be cascaded in a daisy-chain configuration for high channel count systems. - What are the supply voltage ranges for the ADS1299IPAGR?
The analog supply voltage range is 4.75 V to 5.25 V, and the digital supply voltage range is 1.8 V to 3.6 V. - Does the ADS1299IPAGR have built-in lead-off detection?
Yes, the ADS1299IPAGR has built-in lead-off detection capabilities. - What type of serial interface does the ADS1299IPAGR use?
The ADS1299IPAGR uses an SPI-compatible serial interface.
