Specifications
| Type | Description |
|---|---|
| Part Number | ADS131M08 |
| Manufacturer | Texas Instruments |
| Product Type | Delta-Sigma ADC |
| Category | Signal Chain |
| Package Case | 32-pin TQFP 5.00 mm x 5.00 mm; 32-pin WQFN 4.00 mm x 4.00 mm |
| Resolution | 24-bit |
| Number of Input Channels | 8 |
| Input Type | Differential |
| Maximum Programmable Data Rate | 32 kSPS |
| Programmable Gain Range | 1 to 128 |
| Dynamic Range, Gain = 1, Data Rate = 4 kSPS | 102 dB |
| Dynamic Range, Gain = 64, Data Rate = 4 kSPS | 80 dB |
| Total Harmonic Distortion | -100 dB |
| Input Impedance, Gain = 1, 2, or 4 | 330 kOhm |
| Input Impedance, Gain = 8, 16, 32, 64, or 128 | >= 1 MOhm |
| Channel-to-Channel Phase Delay Calibration Resolution | 244 ns |
| Startup Time to First Data | 0.5 ms |
| Crosstalk Between Channels | -120 dB |
| Internal Voltage Reference | 1.2 V |
| Analog Supply Voltage Range | 2.7 V to 3.6 V |
| Digital Supply Voltage Range | 2.7 V to 3.6 V |
| Power Consumption | 6.0 mW |
| Operating Temperature Range | -40°C to +125°C |
| Communication Integrity Feature | CRC on data input, data output, and register map |
| Input Signal Below Ground Support | Supported |
| Package Option, PBS | TQFP-32, 5.00 mm x 5.00 mm |
| Package Option, RSN | WQFN-32, 4.00 mm x 4.00 mm |
| Analog Input Pins | AIN0P/AIN0N through AIN7P/AIN7N |
| Clock Input Pin | XTAL1/CLKIN |
| Serial Interface Pins | DIN, DOUT, SCLK, CS, DRDY |
| Datasheet Status | request_only |
Product Overview
The ADS131M08 is a Texas Instruments 8-channel 24-bit delta-sigma ADC in the Signal Chain category. It provides eight simultaneously sampling differential input channels through AIN0P/AIN0N to AIN7P/AIN7N, with a programmable data rate up to 32 kSPS.
The integrated low-noise PGA supports gains from 1 to 128. Datasheet parameters include 102 dB dynamic range at gain 1 and 4 kSPS, 80 dB dynamic range at gain 64 and 4 kSPS, -100 dB total harmonic distortion, and -120 dB crosstalk between channels. Input impedance is 330 kOhm at gains of 1, 2, or 4, and at least 1 MOhm at gains of 8 through 128.
The device includes a 1.2 V internal low-drift reference, optional CRC coverage for data input, data output, and register map integrity, and an integrated negative charge pump supporting input signals below ground. It uses DIN, DOUT, SCLK, CS, and DRDY serial interface pins, with XTAL1/CLKIN for clock input. Package options are TQFP-32, 5.00 mm x 5.00 mm, and WQFN-32, 4.00 mm x 4.00 mm with exposed thermal pad connected to AGND.
Key Features
- 8 simultaneously sampling differential input channels
- 24-bit delta-sigma ADC resolution
- Programmable data rate up to 32 kSPS
- Integrated low-noise PGA with gains from 1 to 128
- 102 dB dynamic range at gain 1, 4 kSPS
- 80 dB dynamic range at gain 64, 4 kSPS
- -100 dB total harmonic distortion
- -120 dB crosstalk between channels
- 1.2 V integrated low-drift voltage reference
- CRC on data input, output, and register map
- Supports input signals below ground
- 0.5 ms startup time to first data
Typical Applications
- Simultaneous differential signal acquisition
- Multichannel precision measurement
- Low-power signal chain designs
- Digitizing below-ground input signals
- CRC-protected serial data acquisition
- Industrial temperature data conversion
- Phase-aligned channel sampling
Procurement Notes
When requesting a quote for ADS131M08, 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 ADS131M08?
The ADS131M08 is an 8-channel 24-bit delta-sigma ADC from Texas Instruments. It supports simultaneously sampling differential inputs and belongs to the Signal Chain category.
What data rate does the ADS131M08 support?
The ADS131M08 supports a programmable data rate up to 32 kSPS. Its dynamic range specifications include 102 dB at gain 1 and 4 kSPS, and 80 dB at gain 64 and 4 kSPS.
Which package options are available for ADS131M08?
Package options listed for the ADS131M08 are TQFP-32, 5.00 mm x 5.00 mm, and WQFN-32, 4.00 mm x 4.00 mm. The WQFN-32 option includes an exposed thermal pad connected to AGND.
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.