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Texas Instruments ADS1014IRUGR
- Part No.:
- ADS1014IRUGR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-XFQFN
- Datasheet:
-
ADS1014IRUGR.pdf
- Description:
- IC ADC 12BIT SIGMA-DELTA 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,017
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Product details
Overview
ADS1014IRUGR from Texas Instruments is a 12-bit, delta-sigma analog-to-digital converter with integrated PGA, digital comparator, internal reference, and oscillator - configured for single-ended or differential input measurement at up to 3.3kSPS. It operates from 2.0V to 5.5V, consumes only 150μA in continuous mode, and delivers noise-free 12-bit resolution in an ultra-small 1.5mm × 2mm X2QFN-10 package for space-constrained sensor monitoring.
For engineers reviewing the ADS1014IRUGR datasheet, ADS1014IRUGR pinout, ADS1014IRUGR application, or ADS1014IRUGR equivalent, this page provides verified technical context, I²C timing compliance, PGA gain range mapping (±0.256V to ±6.144V), comparator latching behavior, and real-world use cases in battery monitoring and industrial temperature sensing - all grounded in TI's SBAS473F production data sheet.
Technical Context
The ADS1014IRUGR implements a delta-sigma ADC core with internal 1MHz oscillator (divided to 250kHz modulator clock), low-drift voltage reference, and programmable gain amplifier. Its single-cycle settling time ensures conversion latency equals 1/programmed data rate - e.g., 303ns at 3.3kSPS.
It supports two functional modes: single-shot (for power-sensitive periodic sampling) and continuous-conversion (with programmable rates from 128SPS to 3.3kSPS). The ALERT/RDY pin serves dual roles - as a configurable digital comparator output (latching or window mode) or as a conversion-ready pulse generator - both requiring external pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit noise-free; guarantees no missing codes across full operating temperature range (–40°C to +125°C). |
| Max Sample Rate | 3.3kSPS; enables real-time monitoring of fast-changing sensor signals without external oversampling. |
| PGA Input Range | ±0.256V to ±6.144V; allows precise measurement of both millivolt-level thermocouple outputs and volt-level battery rails using same device. |
| Supply Current | 150μA (typical, continuous mode); reduces system power budget in always-on battery-powered instrumentation. |
| I²C Address Options | Four pin-selectable addresses via ADDR pin; permits up to four ADS1014IRUGR devices on same bus without address conflict. |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive, industrial control, and factory automation environments. |
| Input Impedance | 6MΩ common-mode (±2.048V FSR); dictates need for source impedance ≤10kΩ or external buffering for <0.1% gain error. |
Pinout & Package
RUG package is a 10-pin, 1.5mm × 2mm × 0.4mm X2QFN with wettable flanks; thermal resistance RθJA = 245.2°C/W; requires solder paste stencil design per TI SLUA759.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | Digital input | Selects one of four I²C slave addresses (0x48–0x4B); pulled high/low or left floating to set address. |
| ALERT/RDY | Open-drain digital output | Configurable as comparator alert (latched/window) or conversion-ready pulse; requires external pull-up to VDD. |
| GND | Analog ground | Reference node for analog inputs and internal reference; must be connected directly to PCB ground plane. |
| AIN0 | Analog input (positive) | Primary input for single-ended (vs GND) or differential (vs AIN1) measurements; ESD-protected to ±2kV HBM. |
| AIN1 | Analog input (negative) | Used as negative input in differential mode; externally tied to GND for single-ended AIN0 measurement. |
| VDD | Analog power supply | 2.0V–5.5V input; requires 0.1μF ceramic decoupling capacitor placed within 2mm of pin. |
| SDA | I²C bidirectional data | Open-drain interface; shares bus with other I²C devices; requires pull-up resistor (typically 4.7kΩ). |
| SCL | I²C clock input | Drives clock for all transactions; supports Fast Mode (400kHz) and High-Speed Mode (3.4MHz) per spec. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA | 6 selectable gains (1–16×) enabling ±0.256V to ±6.144V FSR - eliminates external op-amp stages for multi-range sensor interfacing. |
| Digital comparator | Programmable high/low thresholds with latching, window, and filtering (1/2/4-sample debounce) - replaces discrete comparator + microcontroller polling. |
| Single-cycle settling | Conversion completes in exactly 1/data-rate period (e.g., 303ns at 3.3kSPS), enabling deterministic timing in closed-loop systems. |
| Internal oscillator & reference | No external crystal or reference required; simplifies BOM and layout while maintaining ±0.25% gain error over temperature. |
| Ultra-small X2QFN | 1.5mm × 2mm footprint saves >60% board area vs SOIC-8; compatible with automated optical inspection (AOI) due to wettable flanks. |
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. IC Role / Device Role / Timing Role: ADC front-end converting cell voltage to digital value; PGA set to ±2.048V range for 0–4.2V measurement; ALERT/RDY triggers interrupt on overvoltage. Use Value: Enables accurate state-of-charge estimation with <1mV LSB resolution and autonomous overvoltage detection without MCU intervention. |
Use Scenario: Cold-junction compensation and thermocouple signal conditioning in HVAC control panels. IC Role / Device Role / Timing Role: Single-ended measurement of K-type thermocouple output (±10mV range); PGA gain = 16× to resolve 0.1°C steps; continuous 128SPS sampling. Use Value: Eliminates external instrumentation amplifier and reference IC, reducing component count by 3 while maintaining ±0.5°C accuracy over –40°C to +125°C. |
| Factory Automation Sensors | Portable Instrumentation |
|
Use Scenario: Analog input module for 4–20mA current loop receivers in PLC I/O cards. IC Role / Device Role / Timing Role: Differential measurement across precision shunt resistor; PGA gain = 1× for ±256mV range; ALERT/RDY flags out-of-range current (e.g., >22mA). Use Value: Provides galvanically isolated current sensing with built-in fault detection, reducing firmware overhead and improving system response time. |
Use Scenario: Handheld multimeter front-end measuring DC voltage, current, and resistance. IC Role / Device Role / Timing Role: Reconfigurable PGA and FSR selection via I²C; single-shot mode minimizes power draw between readings; 12-bit resolution meets CAT II 600V safety standards. Use Value: Supports multiple measurement ranges in one compact IC, cutting PCB size and calibration complexity versus discrete ADC + gain-switching solution. |
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 |
|---|---|---|---|
| ADS1015IRUGR | 4-channel input MUX (2 differential or 4 single-ended); identical PGA, comparator, and timing specs. | Supports multiplexed multi-sensor acquisition (e.g., temp + pressure + humidity) without external mux IC. | Select when expanding channel count is needed; same footprint and software register map enable drop-in upgrade path. |
| ADS1114IRUGR | 16-bit resolution, 860SPS max, same PGA/comparator features; higher noise floor at low data rates. | Preferred for high-precision applications like strain gauge readout where 16-bit ENOB justifies lower speed. | Choose only if ≥16-bit effective resolution is mandatory; requires firmware update for register compatibility and slower data throughput. |
Compared with ADS1014IRUGR, ADS1015IRUGR adds channel flexibility without sacrificing size or power, while ADS1114IRUGR trades speed for resolution - making ADS1014IRUGR optimal for cost-sensitive, space-constrained 12-bit sensor nodes requiring 3.3kSPS throughput.
Availability
ADS1014IRUGR is available at Aetrix Electronics and suitable for battery voltage monitoring, temperature measurement systems, and factory automation sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADS1014IRUGR 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 industrial-grade IC design.
The ADS101x product line was engineered for ultra-low-power, space-constrained sensor signal conditioning - targeting portable instrumentation, battery management, and industrial process control where integration, reliability, and small footprint are critical.
FAQ
What is the maximum full-scale input voltage range supported by ADS1014IRUGR?
The ADS1014IRUGR supports six programmable full-scale ranges via its integrated PGA: ±0.256V, ±0.512V, ±1.024V, ±2.048V, ±4.096V, and ±6.144V. These ranges are selected using the PGA[2:0] bits in the Config register. The ±6.144V range allows direct measurement of standard 5V rails or automotive battery voltages up to ~12.3V (with appropriate external scaling), while the ±0.256V range resolves microvolt-level signals from thermocouples or bridge sensors - all without external amplification hardware.
Does ADS1014IRUGR require an external clock or reference voltage?
No, ADS1014IRUGR does not require an external clock or reference voltage. It integrates a 1MHz internal oscillator (divided to 250kHz modulator clock) and a low-drift internal voltage reference. These components are factory-trimmed and fully characterized across temperature - eliminating the need for external crystals, oscillators, or precision reference ICs. This integration reduces BOM count, PCB area, and design validation effort while ensuring guaranteed performance per TI's SBAS473F datasheet specifications.
How is the ALERT/RDY pin used in ADS1014IRUGR?
The ALERT/RDY pin on ADS1014IRUGR serves two mutually exclusive functions: digital comparator output or conversion-ready indicator. In comparator mode, it asserts (open-drain, active-low by default) when conversion results exceed user-defined high/low thresholds - configurable as latching or window mode with 1/2/4-sample filtering. In conversion-ready mode, it pulses low for ~8µs at the end of each conversion in continuous mode. Both modes require an external pull-up resistor to VDD and are controlled entirely via I²C register writes - no external logic needed.
What are the absolute maximum ratings for analog input voltage on ADS1014IRUGR?
The absolute maximum analog input voltage on ADS1014IRUGR is GND – 0.3V to VDD + 0.3V per pin (AIN0 or AIN1), as specified in Section 6.1 of the SBAS473F datasheet. Exceeding this range risks forward-biasing internal ESD diodes, causing excessive current flow and potential damage. For example, with VDD = 3.3V, inputs must stay within 0V to 3.6V. Even when using the ±6.144V FSR setting, the physical input voltage must still obey this limit - meaning external attenuation or clamping is required for signals beyond VDD + 0.3V.
Can ADS1014IRUGR operate from a 2.0V supply?
Yes, ADS1014IRUGR is fully specified to operate from 2.0V to 5.5V supply voltage. At 2.0V, it maintains 12-bit noise-free resolution, 150μA typical supply current in continuous mode, and full functionality of PGA, comparator, and I²C interface. The internal reference and oscillator remain stable across this range, and I²C timing parameters (e.g., tLOW, tHIGH) meet Fast Mode requirements down to 2.0V. This makes ADS1014IRUGR suitable for single-cell Li-ion (2.7–4.2V) or coin-cell (2.0–3.0V) powered applications without voltage regulation.
ADS1014IRUGR 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:
- 1, 2
- 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:
- -
ADS1014IRUGR FAQ
1.How can I place an order for ADS1014IRUGR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1014IRUGR 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 ADS1014IRUGR reliable?
The price and inventory of ADS1014IRUGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1014IRUGR is usually 5 days.
3.What payment methods are accepted for ADS1014IRUGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1014IRUGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1014IRUGR?
ADS1014IRUGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1014IRUGR 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 ADS1014IRUGR?
For technical support, including ADS1014IRUGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1014IRUGR requirements.
6.How does Aetrix verify that ADS1014IRUGR is sourced from the original manufacturer or authorized distributors?
All ADS1014IRUGR 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 ADS1014IRUGR meets industry standards.
7.What is the process for return or replacement of ADS1014IRUGR?
All ADS1014IRUGR units undergo pre-shipment inspection (PSI). If there is an issue with ADS1014IRUGR, 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 ADS1014IRUGR part is unused and in its original packaging.
Return procedure for ADS1014IRUGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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