Specifications
| Type | Description |
|---|---|
| Part Number | ADS124S08 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | 32-pin VQFN, 5.0 mm x 5.0 mm; 32-pin TQFP, 5.0 mm x 5.0 mm |
| Resolution | 24 bits |
| ADC Architecture | Delta-sigma ADC |
| Maximum Data Rate | 4 kSPS |
| Programmable Data Rate Range | 2.5 SPS to 4 kSPS |
| Number of Analog Inputs | 12 analog inputs |
| Analog Input Multiplexer | 12 independently selectable inputs |
| Common Analog Input | AINCOM |
| Programmable Gain | 1 to 128 |
| PGA Noise | 19 nV RMS, gain = 128 |
| Power Consumption | As low as 280 uA |
| Digital Filter Rejection | Simultaneous 50-Hz and 60-Hz rejection at data rate <= 20 SPS with low-latency digital filter |
| Excitation Current Sources | 2 matched programmable current sources |
| Excitation Current Range | 10 uA to 2000 uA |
| Internal Voltage Reference | 2.5 V |
| Internal Reference Drift | 10 ppm/°C max |
| Internal Oscillator Frequency | 4.096 MHz |
| Internal Oscillator Accuracy | 1.5% |
| Temperature Sensor | Internal temperature sensor included |
| General-Purpose I/O Count | 4 GPIOs |
| Interface | SPI-compatible interface |
| CRC Support | Optional CRC |
| Analog Supply Voltage, Unipolar | 2.7 V to 5.25 V |
| Analog Supply Voltage, Bipolar | ±2.5 V |
| Digital Supply Voltage | 2.7 V to 3.6 V |
| Operating Temperature Range | -50°C to +125°C |
| Calibration Features | Self offset and system calibration |
| Fault Detection | Extended fault detection circuits |
| Burn-Out Detection | Burnout detect included |
| PGA Rail Detection | PGA rail detection included |
| Pin Count | 32 pins |
| Datasheet Status | request_only |
Product Overview
The ADS124S08 is a Texas Instruments 24-bit delta-sigma ADC for Signal_Chain measurement designs. It combines a 12-input analog multiplexer, AINCOM common analog input for single-ended measurements, and an integrated low-noise PGA with programmable gain from 1 to 128. At gain 128, the PGA noise is specified as 19 nV RMS.
Conversion data rates are programmable from 2.5 SPS to 4 kSPS. When using the low-latency digital filter at data rates of 20 SPS or below, the device supports simultaneous 50-Hz and 60-Hz rejection. Integrated support blocks include two matched programmable excitation current sources from 10 uA to 2000 uA, a 2.5 V internal reference with 10 ppm/°C maximum drift, a 4.096 MHz oscillator with 1.5% accuracy, and an internal temperature sensor.
The device supports unipolar analog supply operation from 2.7 V to 5.25 V, bipolar analog supply operation at ±2.5 V, and a 2.7 V to 3.6 V digital supply. It is available in 32-pin VQFN and 32-pin TQFP packages, each 5.0 mm x 5.0 mm, with SPI-compatible communication, optional CRC, four GPIOs, calibration functions, and fault-detection circuitry.
Key Features
- 24-bit delta-sigma ADC architecture
- Programmable data rates from 2.5 SPS to 4 kSPS
- 12 analog inputs with independently selectable multiplexer paths
- AINCOM input supports single-ended measurement configurations
- Integrated low-noise PGA with gain from 1 to 128
- 19 nV RMS PGA noise at gain 128
- Dual matched programmable current sources, 10 uA to 2000 uA
- 2.5 V internal reference with 10 ppm/°C maximum drift
- SPI-compatible interface with optional CRC support
- Self offset, system calibration, and extended fault detection
Typical Applications
- Precision sensor measurement channels
- Single-ended analog input measurements
- Sensor excitation measurement systems
- Low-data-rate line-frequency rejection measurements
- Temperature-monitored signal acquisition
- SPI-connected data acquisition modules
- GPIO-assisted mixed-signal measurement designs
Procurement Notes
When requesting a quote for ADS124S08, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of converter is the ADS124S08?
The ADS124S08 is a 24-bit delta-sigma ADC from Texas Instruments in the Signal_Chain category. It supports programmable data rates from 2.5 SPS to 4 kSPS and includes integrated measurement support functions.
How many analog inputs does ADS124S08 provide?
The ADS124S08 provides 12 analog inputs. Its analog input multiplexer has 12 independently selectable inputs, and the device also includes AINCOM as a common analog input for single-ended measurements.
What integrated reference and oscillator are included?
The device includes a 2.5 V internal voltage reference with 10 ppm/°C maximum drift. It also integrates a 4.096 MHz oscillator with 1.5% accuracy, according to the extracted datasheet facts.
Which packages are listed for ADS124S08?
ADS124S08 is listed in 32-pin VQFN and 32-pin TQFP package options. Both package formats are specified as 5.0 mm x 5.0 mm and use a 32-pin pin count.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.