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Texas Instruments ADS1113IRUGT
- Part No.:
- ADS1113IRUGT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-XFQFN
- Datasheet:
-
ADS1113IRUGT.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,101
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Product details
Overview
ADS1113IRUGT from Texas Instruments is a 16-bit, delta-sigma analog-to-digital converter (ADC) with integrated voltage reference and oscillator, supporting single-ended or differential input configurations. It operates at up to 860 SPS over a 2.0V–5.5V supply, consumes only 150 µA in continuous-conversion mode, and features I²C interface with four pin-selectable addresses - ideal for compact battery-powered sensor monitoring systems.
For engineers reviewing the ADS1113IRUGT datasheet, ADS1113IRUGT pinout, ADS1113IRUGT application, or ADS1113IRUGT equivalent, key selection criteria include its ultra-small X2QFN-10 package (1.5 mm × 2.0 mm), absence of PGA/comparator (distinguishing it from ADS1114/ADS1115), single-channel architecture, and guaranteed operation from –40°C to +125°C in space-constrained industrial and portable designs.
Technical Context
The ADS1113IRUGT implements a delta-sigma ADC core with internal 2.048-V low-drift voltage reference and fixed 1-MHz oscillator (divided to 250-kHz modulator clock). It supports only one differential (AIN0–AIN1) or one single-ended (AIN0–GND) input channel - no multiplexer, PGA, or comparator - simplifying signal chain design for dedicated voltage or current sensing.
Conversion modes are limited to single-shot and continuous-conversion; data rates are programmable from 8 SPS to 860 SPS via I²C-configurable registers. The device achieves single-cycle settling and delivers 16-bit no-missing-codes resolution with INL ≤ ±1 LSB (at 8 SPS, ±2.048-V FSR), making it suitable for precision DC measurements without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - ensures monotonicity and full code coverage across full-scale range. |
| Max Sample Rate | 860 SPS - enables real-time monitoring of slow-varying signals like temperature or battery voltage without oversampling burden. |
| Supply Voltage | 2.0 V to 5.5 V - compatible with single-cell Li-ion, 3.3-V microcontrollers, and 5-V legacy systems without level-shifting. |
| Quiescent Current | 150 µA (continuous mode) - extends battery life in portable instrumentation and IoT edge nodes. |
| Input Configuration | 1 differential (AIN0–AIN1) or 1 single-ended (AIN0–GND) - eliminates need for external MUX or PGA in simple sensing applications. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial control, and factory automation environments. |
| I²C Address | 4 pin-selectable addresses (via ADDR pin) - allows multiple ADS1113IRUGT devices on same bus without address conflict. |
Pinout & Package
ADS1113IRUGT is packaged in a 10-pin X2QFN (RUG) measuring 1.5 mm × 2.0 mm × 0.4 mm, with wettable flanks for automated optical inspection. The package has no exposed thermal pad and requires standard reflow profile for lead-free assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | Digital input | Selects one of four I²C slave addresses (0x48–0x4B); tied to GND/VDD for static configuration. |
| ALERT/RDY | Digital output | Open-drain ready flag - asserts low when conversion completes; unused on ADS1113IRUGT (no comparator function). |
| GND | Analog ground | Primary reference for analog inputs and internal reference; must be connected to clean system ground plane. |
| AIN0 | Analog input | Positive input for differential mode or single-ended mode; accepts voltages from GND to VDD. |
| AIN1 | Analog input | Negative input for differential mode; externally tied to GND for single-ended measurement. |
| VDD | Analog power | Supplies core ADC, reference, and oscillator; requires 0.1-µF ceramic decoupling capacitor to GND. |
| SCL | Digital input | I²C serial clock; pulled high externally (typically 2.2–10 kΩ to VDD) for proper bus timing. |
| SDA | Digital I/O | I²C bidirectional data line; also pulled high externally for open-drain operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated voltage reference | 2.048-V low-drift internal reference eliminates external precision reference and reduces BOM count. |
| On-chip oscillator | Fixed 1-MHz oscillator (250-kHz modulator clock) removes need for external crystal or clock source. |
| Ultra-small footprint | X2QFN-10 (1.5 mm × 2.0 mm) enables placement in wearables, sensor nodes, and PCBs with strict area constraints. |
| Single-cycle settling | Guarantees valid conversion result after one data rate interval - simplifies timing control in firmware. |
| I²C compatibility | Supports standard/fast-mode I²C (up to 400 kHz) with configurable slave address - interoperable with most MCUs and SoCs. |
Applications
| Battery Voltage Monitoring | Temperature Measurement Systems |
|---|---|
Use Scenario: Real-time tracking of Li-ion cell voltage during charge/discharge cycles in portable medical devices or handheld test equipment. IC Role / Device Role / Timing Role: ADS1113IRUGT digitizes the scaled battery voltage (via resistor divider) with 16-bit resolution and <±1 LSB INL, providing accurate state-of-charge estimation. Use Value: Enables precise low-power voltage logging without external reference or PGA, reducing component count and layout complexity. | Use Scenario: Direct digitization of thermistor or RTD bridge outputs in HVAC controllers or industrial process sensors. IC Role / Device Role / Timing Role: ADS1113IRUGT measures differential voltage across a precision current-excited resistive sensor, leveraging its internal reference for ratiometric accuracy. Use Value: Delivers stable 16-bit readings over –40°C to +125°C with no gain drift compensation required in firmware. |
| Portable Instrumentation | Factory Automation Sensors |
Use Scenario: Compact multimeter or data logger modules requiring minimal board area and long battery life. IC Role / Device Role / Timing Role: ADS1113IRUGT serves as the primary ADC for analog front-end, interfacing directly with op-amp buffers and MCU via I²C. Use Value: Its 150-µA operating current and 2-mm² footprint allow integration into sub-20-mm² PCB sections while maintaining DC precision. | Use Scenario: Analog input module for PLC I/O cards measuring 4–20 mA loop signals or strain gauge outputs. IC Role / Device Role / Timing Role: ADS1113IRUGT converts conditioned analog signals with guaranteed 125°C operation and robust ESD protection (±2000 V HBM). Use Value: Eliminates need for external reference and clock, lowering bill-of-materials cost and improving long-term calibration stability in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit, single-channel, I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1114IRUGT | Includes PGA (±256 mV to ±6.144 V input ranges) and digital comparator; identical pinout and package. | Required when measuring small-signal sensors (e.g., load cells) or implementing over/under-voltage alerts without MCU polling. | Select ADS1114IRUGT if gain flexibility or comparator-triggered interrupts are needed; otherwise ADS1113IRUGT offers lower cost and simpler configuration. |
| MCP3421A0T-E/CH | 18-bit delta-sigma ADC with internal 2.048-V reference and PGA; I²C interface; SOT-23-6 package (smaller but no ALERT/RDY pin). | Preferred for higher-resolution DC measurements where 18-bit resolution outweighs lack of ready flag and smaller input voltage range (±2.048 V max). | Choose MCP3421A0T-E/CH when resolution >16 bits is critical and board space is extremely constrained; ADS1113IRUGT provides better noise performance at 860 SPS and wider supply range. |
Compared with ADS1114IRUGT, ADS1113IRUGT removes PGA and comparator to reduce cost and firmware overhead for fixed-range applications; compared with MCP3421A0T-E/CH, it trades 2-bit resolution for superior speed (860 vs. 15 SPS), wider supply range (2.0–5.5 V vs. 2.7–5.5 V), and integrated ready signaling.
Availability
ADS1113IRUGT is available at Aetrix Electronics and suitable for battery voltage monitoring, portable instrumentation, and temperature measurement systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ADS1113IRUGT 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 design.
The ADS111x product line was engineered for space- and power-constrained sensor measurement applications, delivering integrated reference, oscillator, and I²C interface in ultra-small packages without sacrificing DC accuracy or temperature stability.
FAQ
What is the maximum sampling rate supported by the ADS1113IRUGT?
The ADS1113IRUGT supports a maximum sampling rate of 860 samples per second (SPS) in continuous-conversion mode. This rate is programmable via I²C register settings and applies across all full-scale input ranges. At 860 SPS, the device maintains 16-bit resolution with no missing codes, though RMS noise increases slightly compared to lower data rates - verified in TI's SBAS444E datasheet Table 6-1.
Does the ADS1113IRUGT include a programmable gain amplifier (PGA)?
No, the ADS1113IRUGT does not include a programmable gain amplifier. Unlike the ADS1114IRUGT and ADS1115IRUGT, the ADS1113IRUGT is designed as a minimal-feature variant with fixed input scaling. Its full-scale range is determined solely by the internal 2.048-V reference and selected input configuration (differential or single-ended), with no PGA stage - confirmed in the Device Comparison Table and Feature Description sections of the official datasheet.
What package type is used for the ADS1113IRUGT, and what are its dimensions?
The ADS1113IRUGT uses the RUG package - a 10-pin X2QFN measuring 1.50 mm × 2.00 mm × 0.40 mm (length × width × height). This ultra-small leadless package features wettable flanks for solder-joint inspection and is specified in TI's SBAS444E datasheet Section 14. It is distinct from the DYN (SOT-10) and DGS (VSSOP-10) variants, which share pin functions but differ in footprint and thermal characteristics.
Can the ADS1113IRUGT operate from a 2.0-V supply?
Yes, the ADS1113IRUGT is fully specified to operate from a minimum supply voltage of 2.0 V up to 5.5 V. Electrical characteristics including offset error (±3 LSB), gain error (0.01% typ), and current consumption (150 µA typ) are guaranteed across this entire range at temperatures from –40°C to +125°C - per Section 5.3 "Recommended Operating Conditions" in the SBAS444E datasheet.
Is the ALERT/RDY pin functional on the ADS1113IRUGT?
The ALERT/RDY pin on the ADS1113IRUGT is implemented as an open-drain output but is not functional as a comparator alert because the ADS1113IRUGT lacks the comparator circuitry present in ADS1114/ADS1115. However, it retains the RDY (ready) function: it asserts low when a conversion completes in continuous mode, allowing interrupt-driven readouts - documented in Table 4-1 and Section 7.4 of the SBAS444E datasheet.
ADS1113IRUGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 860
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- I2C
- Configuration:
- 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:
- Selectable Address
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-X2QFN (2x1.5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1113IRUGT FAQ
1.How can I place an order for ADS1113IRUGT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1113IRUGT 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 ADS1113IRUGT reliable?
The price and inventory of ADS1113IRUGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1113IRUGT is usually 5 days.
3.What payment methods are accepted for ADS1113IRUGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1113IRUGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1113IRUGT?
ADS1113IRUGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1113IRUGT 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 ADS1113IRUGT?
For technical support, including ADS1113IRUGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1113IRUGT requirements.
6.How does Aetrix verify that ADS1113IRUGT is sourced from the original manufacturer or authorized distributors?
All ADS1113IRUGT 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 ADS1113IRUGT meets industry standards.
7.What is the process for return or replacement of ADS1113IRUGT?
All ADS1113IRUGT units undergo pre-shipment inspection (PSI). If there is an issue with ADS1113IRUGT, 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 ADS1113IRUGT part is unused and in its original packaging.
Return procedure for ADS1113IRUGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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