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.
| Resolution (Bits) |
| Sample Rate (Max) (kSPS) |
| # Input Channels |
| Interface |
| Operating Temperature Range (C) |
| Package Group |
| Approx. Price (US$) |
| Power Consumption (Typ) (mW) |
| Package Size: mm2:W x L (PKG) |
| Architecture |
| Input Type |
| Multi-Channel Configuration |
| Reference Mode |
| Features |
| Input Range (Max) (V) |
| Input Range (Min) (V) |
| Analog Voltage AVDD (Min) (V) |
| Analog Voltage AVDD (Max) (V) |
| Digital Supply (Min) (V) |
| Digital Supply (Max) (V) |
| INL (Max) (+/-LSB) |
| SNR (dB) |
| THD (Typ) (dB) |
| Rating |
| Sample Rate (Max) (MSPS) |
| ADS1299-6 | ADS1299 | ADS1299-4 |
|---|---|---|
| 24 | 24 | 24 |
| 16 | 16 | 16 |
| 6 | 8 | 4 |
| SPI | SPI | SPI |
| -40 to 85 | -40 to 85 | -40 to 85 |
| TQFP | TQFP | TQFP |
| 27.00 | 1ku | 36.00 | 1ku | 18.00 | 1ku |
| 5 | 41 | 5 |
| 64TQFP: 144 mm2: 12 x 12(TQFP) | 64TQFP: 144 mm2: 12 x 12(TQFP) | 64TQFP: 144 mm2: 12 x 12(TQFP) |
| Delta-Sigma | Delta-Sigma | Delta-Sigma |
| Differential | Differential | Differential |
| Simultaneous Sampling | Simultaneous Sampling | Simultaneous Sampling |
| Ext Int | Ext Int | Ext Int |
| Daisy-Chainable GPIO Oscillator PGA | Daisy-Chainable GPIO Oscillator PGA | Daisy-Chainable GPIO Oscillator PGA |
| 5.25 | 5.25 | 5.25 |
| 0 | 0 | 0 |
| 4.75 | 4.75 | 4.75 |
| 5.25 | 5.25 | 5.25 |
| 1.8 | 1.8 | 1.8 |
| 3.6 | 3.6 | 3.6 |
| 8 | 8 | |
| 121 | 121 | 121 |
| -99 | -99 | -99 |
| Catalog | Catalog | Catalog |
| 0.016 | 0.016 | 0.016 |
| Order Now | Order Now | Order Now |
