ADS1263 - 32-Bit 38-kSPS Delta-Sigma ADC | Texas Instruments
MPN: ADS1263 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8 | $8,000.00 |
Drop-in alternatives for ADS1263 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADS1262
β Drop-Inβ In Stock
$7.9 / Unit
View Datasheet βADS1261
β Drop-Inπ Reference alternative (not in catalog)
ADS1256
β‘ Same Packageπ Reference alternative (not in catalog)
ADS1263 Maximum Ratings & Electrical Characteristics
| Resolution | 32 Bit |
| Sampling Rate | 38.4 kSPS |
| Number of Input Channels | 5 Differential, 10 Single-Ended |
| Input Type | Differential, Single-Ended |
| Data Interface | SPI |
| Architecture | Sigma-Delta |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 4.75 V ~ 5.25 V |
| Voltage - Supply, Digital | 2.7 V ~ 5.25 V |
| Features | PGA, Temperature Sensor, Auxiliary ADC |
| Operating Temperature Range | -40Β°C ~ +125Β°C |
| Package / Case | 28-TSSOP |
| Mounting Type | Surface Mount |
| Supplier Device Package | 28-TSSOP |
| Base Product Number | ADS1263 |
ADS1263 Pin Configuration
| Pin 1 | AVDD β Analog power supply |
| Pin 2 | AIN0 β Analog input 0 |
| Pin 3 | AIN1 β Analog input 1 |
| Pin 4 | AIN2 β Analog input 2 |
| Pin 5 | AIN3 β Analog input 3 |
| Pin 6 | AIN4 β Analog input 4 |
| Pin 7 | AIN5 β Analog input 5 |
| Pin 8 | AIN6 β Analog input 6 |
| Pin 9 | AIN7 β Analog input 7 |
| Pin 10 | AIN8 β Analog input 8 |
| Pin 11 | AIN9 β Analog input 9 |
| Pin 12 | AVSS β Analog ground |
| Pin 13 | DVDD β Digital power supply |
| Pin 14 | DGND β Digital ground |
| Pin 15 | SCLK β SPI clock |
| Pin 16 | DIN β SPI data input |
| Pin 17 | DOUT β SPI data output |
| Pin 18 | CS β Chip select |
| Pin 19 | DRDY β Data ready |
| Pin 20 | RESET β Reset (active low) |
| Pin 21 | SYNC β Synchronization input |
| Pin 22 | CLK β External clock input |
| Pin 23 | REFN β Negative reference input |
| Pin 24 | REFP β Positive reference input |
| Pin 25 | IDAC1 β Excitation current output 1 |
| Pin 26 | IDAC2 β Excitation current output 2 |
| Pin 27 | GPIO0 β General purpose I/O 0 |
| Pin 28 | GPIO1 β General purpose I/O 1 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADS1263 is suitable for 6 applications: Weigh Scales, Load Cell Measurement, Temperature Sensing, Industrial Process Control, Data Acquisition Systems, Test and Measurement.
Weigh Scales
The ADS1263 is ideal for weigh scales and load cells due to its 32-bit resolution, low noise, and integrated PGA. The single-cycle settling digital filter provides 130-dB rejection of 50/60-Hz interference, ensuring accurate and stable weight measurements. The device can directly interface with bridge sensors, and its internal reference simplifies the design. With a maximum sampling rate of 38.4 kSPS, it supports fast and precise weight readings in industrial and commercial scales.
Recommended
Load Cell Measurement
The ADS1263 excels in load cell measurement applications, offering 32-bit resolution and an integrated PGA that can amplify low-level signals from strain gauge bridges. Its low drift and high accuracy ensure reliable force measurements over temperature. The auxiliary 24-bit ADC can monitor temperature for compensation, and the SPI interface allows easy integration with microcontrollers. The device's fault monitors enhance system reliability in industrial environments.
Recommended
Temperature Sensing
The ADS1263 can be used for high-precision temperature sensing with thermocouples, RTDs, and thermistors. Its integrated PGA and reference allow direct connection to these sensors, while the 24-bit auxiliary ADC can monitor cold-junction temperature. The device's low noise and high resolution enable accurate temperature readings over a wide range. The SPI interface simplifies data transfer to a host processor for further processing.
Recommended
Industrial Process Control
In industrial process control, the ADS1263 provides high-accuracy analog-to-digital conversion for pressure, flow, and level sensors. Its 32-bit resolution and low drift ensure precise monitoring and control. The device's integrated fault monitors and wide temperature range (-40Β°C to +125Β°C) make it suitable for harsh environments. The SPI interface allows seamless integration with PLCs and industrial controllers.
Recommended
Data Acquisition Systems
The ADS1263 is a key component in high-resolution data acquisition systems, offering 32-bit resolution and a maximum sampling rate of 38.4 kSPS. Its integrated PGA and reference reduce external component count, while the auxiliary ADC enables simultaneous monitoring of secondary signals. The device's low noise and high linearity make it suitable for scientific instruments and test equipment. The SPI interface supports high-speed data transfer to FPGAs or DSPs.
Recommended
Test and Measurement
The ADS1263 is used in test and measurement equipment such as digital multimeters, data loggers, and precision calibrators. Its 32-bit resolution and low noise enable accurate measurements of voltage, current, and resistance. The integrated PGA allows measurement of small signals, and the internal reference provides stability. The device's SPI interface and wide temperature range make it versatile for benchtop and portable instruments.
Recommended
Recommended Products Summary
Engineering reference data for ADS1263 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS1262 | ADS1261 | ADS1256 | AD7730 |
|---|---|---|---|---|---|
| Resolution | 32 Bit | 32 Bit | 24 Bit | 24 Bit | 24 Bit |
| Sampling Rate | 38.4 kSPS | 38.4 kSPS | 20 kSPS | 30 kSPS | 19.2 kSPS |
| Input Channels | 5 Differential, 10 Single-Ended | 5 Differential, 10 Single-Ended | 5 Differential, 10 Single-Ended | 4 Differential, 8 Single-Ended | 2 Differential |
| Integrated PGA | Yes | Yes | Yes | Yes | Yes |
| Internal Reference | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) |
| Auxiliary ADC | Yes (24-bit) | No | No | No | No |
| Package | 28-TSSOP | 28-TSSOP | 28-TSSOP | 28-SSOP | 24-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
Key Differentiators
- Integrated auxiliary 24-bit ADC (vs ADS1262)
- Higher resolution and sampling rate (vs ADS1261)
- Pin and functional compatibility with ADS1262 (vs ADS1256)
Design Notes
Use separate analog and digital power supplies (AVDD and DVDD) with proper decoupling capacitors (0.1uF and 10uF) close to the pins. A low-noise LDO is recommended for AVDD to minimize supply-induced noise. The digital supply can be shared with the host controller if isolated.
Place the ADS1263 on a clean analog ground plane, separate from digital ground. Use a star-ground topology to avoid ground loops. Keep analog input traces short and shielded if possible. Route SPI signals away from analog inputs to prevent digital noise coupling.
Ensure the reference voltage is stable and low-noise. Use an external precision reference if higher accuracy is needed. The internal reference is suitable for most applications but may have temperature drift. Also, configure the PGA gain correctly to avoid clipping the input signal.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
