Specifications
| Type | Description |
|---|---|
| Part Number | ADS1263 |
| Manufacturer | Texas Instruments |
| Product Type | Delta-Sigma ADC |
| Category | Signal Chain |
| Component Type | Other |
| Package Case | TSSOP (28), 9.70 mm x 4.40 mm nominal body size |
| Primary ADC Resolution | 32-bit |
| Auxiliary ADC Resolution | 24-bit |
| ADC Architecture | Delta-sigma |
| Maximum Data Rate | 38.4 kSPS |
| Data Rate Range | 2.5 SPS to 38400 SPS |
| Analog Inputs | 11 |
| Input Configuration | Differential input |
| PGA Type | CMOS PGA |
| PGA Gain Range | 1 to 32 |
| Offset Drift | 1 nV/°C |
| Gain Drift | 0.5 ppm/°C |
| Noise | 7 nVRMS |
| Noise Condition | Data rate = 2.5 SPS, gain = 32 |
| Linearity | 3 ppm |
| Internal Voltage Reference | 2.5 V |
| Reference Temperature Drift | 2 ppm/°C |
| Line-Frequency Rejection | 50 Hz and 60 Hz rejection |
| Line-Cycle Rejection | 130 dB |
| Conversion Settling | Single-cycle settled conversions |
| Sensor Excitation Sources | Dual current sources |
| General-Purpose I/O | 8 GPIO |
| Fault Monitors | Internal fault monitors |
| ADC Test Signal | Internal ADC test signal |
| Supply Example | +5 V analog, +3.3 V digital |
| Specified Temperature Range | -40°C to +125°C |
| Pin Count | 28 pins |
| Package | TSSOP |
| Package Body Size | 9.70 mm x 4.40 mm |
| Pin Compatibility | ADS1262 and ADS1263 are pin and functional compatible |
| Datasheet Status | request_only |
Product Overview
The ADS1263 is a Texas Instruments 32-bit delta-sigma ADC for precision conversion and integrated analog front-end functions. Its primary ADC is 32-bit, and the ADS1263 also includes a 24-bit auxiliary ADC. Both ADCs use delta-sigma architecture, and the main ADC supports programmable conversion rates from 2.5 SPS to 38400 SPS, with a maximum data rate of 38.4 kSPS.
The input structure provides 11 multifunction analog inputs with a differential CMOS PGA input. The integrated low-noise CMOS PGA supports gains from 1 to 32. Accuracy-related parameters include 1 nV/°C offset drift, 0.5 ppm/°C gain drift, 3 ppm linearity, and 7 nVRMS noise at 2.5 SPS with gain set to 32.
Integrated functions include a 2.5 V internal voltage reference with 2 ppm/°C drift, 50 Hz and 60 Hz line-frequency rejection with 130 dB line-cycle rejection, single-cycle settled conversions, dual current sources for RTD measurement, 8 GPIO, internal fault monitors, and an internal ADC test signal. The device is offered in a 28-pin TSSOP package with a 9.70 mm x 4.40 mm nominal body size and is specified from -40°C to +125°C.
Key Features
- 32-bit primary delta-sigma ADC architecture
- 24-bit auxiliary delta-sigma ADC on ADS1263
- Programmable data rates from 2.5 SPS to 38400 SPS
- 11 multifunction analog inputs with differential CMOS PGA input
- Integrated low-noise CMOS PGA with gain from 1 to 32
- 7 nVRMS noise at 2.5 SPS and gain 32
- 2.5 V internal reference with 2 ppm/°C drift
- 50 Hz and 60 Hz rejection with 130 dB line-cycle rejection
- Single-cycle settled conversions through digital filter
- Dual sensor-excitation current sources for RTD measurement
- 8 GPIO with internal fault monitors
- 28-pin TSSOP package, 9.70 mm x 4.40 mm body
Typical Applications
- RTD measurement
- Precision sensor acquisition
- Multi-input analog measurement
- Low-noise slow-rate conversion
- Line-frequency rejected measurements
- Differential sensor signal conversion
- Temperature-range industrial measurements
Procurement Notes
When requesting a quote for ADS1263, 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 ADS1263?
The ADS1263 is a Texas Instruments 32-bit delta-sigma ADC in the Signal Chain category. It includes a 32-bit primary ADC and, for ADS1263, a 24-bit auxiliary ADC using delta-sigma architecture.
What package is specified for the ADS1263?
The ADS1263 package information lists a 28-pin TSSOP. The nominal body size is 9.70 mm x 4.40 mm, matching the extracted package case of TSSOP (28).
What data rates does the ADS1263 support?
The ADS1263 supports programmable conversion data rates from 2.5 SPS to 38400 SPS. The main ADC maximum data rate is 38.4 kSPS.
Which integrated functions support sensor measurement?
The ADS1263 includes 11 multifunction analog inputs, a differential CMOS PGA input, PGA gain from 1 to 32, a 2.5 V internal reference, dual current sources for RTD measurement, 8 GPIO, fault monitors, and an internal ADC test signal.
Is the ADS1263 compatible with the ADS1262?
Yes, the ADS1262 and ADS1263 are pin and function compatible. The ADS1263 adds a 24-bit auxiliary ADC while the ADS1262 does not include this feature.
What is the operating temperature range of the ADS1263?
The ADS1263 is specified over the industrial temperature range from -40°C to +125°C, making it suitable for extended temperature industrial applications.
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.