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Texas Instruments ADS1015IRUGT
- Part No.:
- ADS1015IRUGT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-XFQFN
- Datasheet:
-
ADS1015IRUGT.pdf
- Description:
- IC ADC 12BIT SIGMA-DELTA 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,789
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Product details
Overview
ADS1015IRUGT from Texas Instruments is a 12-bit, delta-sigma analog-to-digital converter with integrated PGA, voltage reference, oscillator, and I²C interface in a 10-pin X2QFN package. It supports up to 4 single-ended or 2 differential inputs, programmable data rates from 128 SPS to 3.3 kSPS, and operates from 2.0 V to 5.5 V supply. It is used in battery-powered sensor monitoring systems requiring precision, low power, and compact size.
For engineers reviewing the ADS1015IRUGT datasheet, ADS1015IRUGT pinout, ADS1015IRUGT application, or ADS1015IRUGT equivalent, key selection criteria include its 12-bit noise-free resolution, ±0.256 V to ±6.144 V programmable full-scale range via PGA, ALERT/RDY comparator functionality, single-cycle settling time, and operation across –40°C to +125°C.
Technical Context
The ADS1015IRUGT implements a delta-sigma ADC core with internal 1 MHz oscillator (divided to 250 kHz modulator clock), low-drift voltage reference, and input multiplexer enabling four single-ended or two differential channel configurations. Its switched-capacitor input stage yields differential input impedance ranging from 710 kΩ to 22 MΩ depending on selected full-scale range.
It supports two conversion modes: single-shot (for ultra-low-power intermittent sampling) and continuous-conversion (with programmable data rates up to 3.3 kSPS). The digital comparator operates in traditional or window mode, latching or non-latching, with configurable alert persistence and threshold qualification over 1/2/4 consecutive samples.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit noise-free - guarantees monotonic output with no missing codes across full temperature range. |
| Max Sample Rate | 3.3 kSPS - enables real-time monitoring of fast-changing sensor signals such as motor current transients. |
| Supply Voltage | 2.0 V to 5.5 V - supports direct interfacing with Li-ion batteries (3.0–4.2 V), 3.3 V microcontrollers, and 5 V legacy systems. |
| PGA Full-Scale Range | ±0.256 V to ±6.144 V - allows precise measurement of both millivolt-level thermocouple outputs and volt-level battery voltages without external amplification. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and outdoor IoT sensor nodes. |
| I²C Addresses | 4 pin-selectable addresses (via ADDR pin) - permits up to four ADS1015IRUGT devices on same bus without address conflict. |
| Quiescent Current | 150 µA in continuous mode - enables multi-year battery life in always-on environmental monitors. |
Pinout & Package
ADS1015IRUGT is packaged in a 10-pin X2QFN (RUG) measuring 1.5 mm × 2.0 mm × 0.4 mm, optimized for space-constrained PCB layouts in portable instrumentation and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | I²C address select | Digital input that sets one of four I²C slave addresses (0x48–0x4B); pulled high/low to configure device identity on shared bus. |
| ALERT/RDY | Comparator output / conversion ready | Open-drain output; asserts low on threshold violation (comparator mode) or end-of-conversion pulse (RDY mode); requires external pullup. |
| GND | Analog ground reference | Primary return path for analog inputs and internal reference; must be connected to clean system ground plane. |
| AIN0–AIN3 | Analog input channels | Four single-ended inputs or two differential pairs (AIN0–AIN1, AIN2–AIN3); internally multiplexed to ADC core; support ±0.256 V to ±6.144 V FSR via PGA. |
| VDD | Power supply | 2.0–5.5 V analog/digital supply; requires 0.1 µF decoupling capacitor placed adjacent to pin. |
| SCL | I²C clock input | Input for synchronous serial communication; requires external pullup to VDD; supports Fast Mode (400 kHz) and High-Speed Mode (3.4 MHz). |
| SDA | I²C bidirectional data | Open-drain I/O line for data transfer; shares bus with other I²C peripherals; requires external pullup to VDD. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA | Programmable gain (1× to 24×) enables accurate digitization of mV- to V-range sensor outputs without external op-amps. |
| Digital comparator | Configurable as latching/non-latching, window/traditional comparator - eliminates need for host MCU polling and reduces firmware overhead. |
| Single-cycle settling | Conversion time = 1/data rate - ensures deterministic timing for time-critical control loops and synchronized multi-channel sampling. |
| Internal oscillator | 1 MHz factory-trimmed oscillator - removes requirement for external crystal or clock source, reducing BOM count and board area. |
| Ultra-small X2QFN | 1.5 mm × 2.0 mm footprint - fits within 3 mm × 3 mm PCB area, ideal for compact sensor nodes and wearable health monitors. |
Applications
| Battery Monitoring System | Industrial Temperature Node |
|---|---|
Use Scenario: Real-time tracking of Li-ion cell voltage and charge/discharge current in portable power tools or medical defibrillators. IC Role / Device Role / Timing Role: ADC front-end converting shunt resistor voltage and battery terminal voltage into digital values for MCU-based state-of-charge estimation. Use Value: 12-bit resolution and ±0.256 V FSR enable <1 mV measurement accuracy; 150 µA quiescent current extends runtime between calibrations. | Use Scenario: Distributed temperature sensing in HVAC ducts or factory machinery using RTD or thermistor bridges. IC Role / Device Role / Timing Role: Precision analog front-end digitizing conditioned bridge outputs; ALERT/RDY triggers MCU wake-up only on out-of-range events. Use Value: Programmable PGA accommodates multiple sensor types; –40°C to +125°C rating ensures reliability in uncontrolled environments. |
| Portable Gas Detector | Smart Home Environmental Hub |
Use Scenario: Battery-powered CO or VOC sensor module requiring low-power, high-accuracy analog acquisition. IC Role / Device Role / Timing Role: Signal conditioner and digitizer for electrochemical sensor output; uses single-shot mode to minimize average current draw. Use Value: 12-bit noise-free resolution captures subtle gas concentration changes; internal reference eliminates drift from external component aging. | Use Scenario: Multi-sensor hub aggregating ambient temperature, humidity, and air quality readings for home automation gateways. IC Role / Device Role / Timing Role: Shared ADC resource managing four analog inputs (e.g., NTC, photoresistor, analog mic, pressure sensor) via internal MUX. Use Value: Four SE inputs eliminate need for external analog switches; I²C interface simplifies connection to ESP32 or Raspberry Pi host. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IRUGT | 16-bit resolution, lower max sample rate (860 SPS), same PGA and comparator features. | Better suited for high-precision DC measurements (e.g., strain gauges), less suitable for >1 kSPS dynamic signals. | Select ADS1115IRUGT when absolute accuracy and noise floor outweigh speed requirements. |
| MCP3424-E/ST | 18-bit delta-sigma ADC, 3.75 SPS to 15 SPS (no high-speed option), I²C interface, internal reference. | Optimized for ultra-high-resolution static measurements; lacks programmable data rates above 15 SPS and comparator alert function. | Choose MCP3424-E/ST for laboratory-grade DC voltage logging where speed is irrelevant. |
Compared with ADS1115IRUGT and MCP3424-E/ST, ADS1015IRUGT uniquely balances 12-bit precision, 3.3 kSPS speed, integrated comparator, and ultra-low power-making it optimal for responsive, battery-operated sensor edge nodes where latency and autonomy are critical.
Availability
ADS1015IRUGT is available at Aetrix Electronics and suitable for battery voltage monitoring, portable instrumentation, industrial temperature sensing, and smart home environmental hubs requiring stable component supply and long-term production continuity.
Supply support for ADS1015IRUGT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and low-power signal chains.
The ADS101x product line was designed specifically for space- and power-constrained sensor measurement applications-including portable medical devices, battery management, and industrial process monitoring-where integration, reliability, and ease of use are essential.
FAQ
What is the maximum sampling rate supported by ADS1015IRUGT?
The ADS1015IRUGT supports a maximum sampling rate of 3.3 kSPS (3300 samples per second) in continuous-conversion mode. This rate is achieved with the DR[2:0] bits set to '111' in the Config register. At this rate, conversion time is approximately 303 µs, and the device maintains 12-bit noise-free resolution across its specified operating temperature range.
Does ADS1015IRUGT require an external voltage reference?
No, ADS1015IRUGT does not require or support an external voltage reference. It integrates a factory-trimmed low-drift internal reference that defines all full-scale ranges (±0.256 V to ±6.144 V). The reference is inseparable from the ADC architecture, and attempts to override it will not function. All gain error and drift specifications include reference contribution.
How many analog input channels does ADS1015IRUGT support?
ADS1015IRUGT supports four single-ended analog inputs (AIN0–AIN3) or two differential input pairs (AIN0–AIN1 and AIN2–AIN3), selectable via the MUX[2:0] bits in the Config register. Unlike ADS1013/ADS1014, only ADS1015IRUGT includes the full 4-input multiplexer; this enables flexible sensor routing without external analog switches.
Can ADS1015IRUGT operate from a 1.8 V supply?
No, ADS1015IRUGT cannot operate from a 1.8 V supply. Its absolute minimum recommended supply voltage is 2.0 V, and the Absolute Maximum Ratings specify VDD must remain ≥ –0.3 V and ≤ 7 V. Operation below 2.0 V may result in undefined behavior, failure to meet specifications, or inability to power the internal oscillator and reference.
What is the function of the ALERT/RDY pin on ADS1015IRUGT?
The ALERT/RDY pin on ADS1015IRUGT serves dual functions: as a programmable digital comparator output (asserting on over/under-voltage conditions) or as a conversion-ready indicator (pulsing low at end of each conversion). Configuration is controlled via COMP_MODE, COMP_LAT, and COMP_POL bits in the Config register; the pin is open-drain and requires an external pullup resistor to VDD.
ADS1015IRUGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3.3k
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2V ~ 5.5V
- Voltage - Supply, Digital:
- 2V ~ 5.5V
- Features:
- PGA, Selectable Address
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-X2QFN (2x1.5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1015IRUGT FAQ
1.How can I place an order for ADS1015IRUGT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1015IRUGT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS1015IRUGT reliable?
The price and inventory of ADS1015IRUGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1015IRUGT is usually 5 days.
3.What payment methods are accepted for ADS1015IRUGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1015IRUGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1015IRUGT?
ADS1015IRUGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1015IRUGT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS1015IRUGT?
For technical support, including ADS1015IRUGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1015IRUGT requirements.
6.How does Aetrix verify that ADS1015IRUGT is sourced from the original manufacturer or authorized distributors?
All ADS1015IRUGT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS1015IRUGT meets industry standards.
7.What is the process for return or replacement of ADS1015IRUGT?
All ADS1015IRUGT units undergo pre-shipment inspection (PSI). If there is an issue with ADS1015IRUGT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS1015IRUGT part is unused and in its original packaging.
Return procedure for ADS1015IRUGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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