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Texas Instruments ADS1114IRUGR
- Part No.:
- ADS1114IRUGR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-XFQFN
- Datasheet:
-
ADS1114IRUGR.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 10X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,330
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Product details
Overview
ADS1114IRUGR from Texas Instruments is a 16-bit, delta-sigma analog-to-digital converter with integrated PGA, internal voltage reference, oscillator, and I²C interface. It supports single-ended or differential input (1 channel), programmable data rates up to 860 SPS, ±256 mV to ±6.144 V input range via PGA, and operates from 2.0 V to 5.5 V supply across –40°C to +125°C - used in battery monitoring and precision sensor signal conditioning.
For engineers reviewing the ADS1114IRUGR datasheet, ADS1114IRUGR pinout, ADS1114IRUGR application, or ADS1114IRUGR equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative parts with functional distinctions, and supply-chain support tailored for embedded industrial and portable instrumentation designs.
Technical Context
The ADS1114IRUGR implements a 250 kHz modulator clock derived from an internal oscillator, enabling delta-sigma conversion with single-cycle settling and configurable digital filtering. Its PGA provides eight programmable gain settings (1× to 16×), directly scaling full-scale input ranges from ±256 mV to ±6.144 V without external components.
It operates in two modes: continuous-conversion (at user-selected data rates from 8 to 860 SPS) and single-shot (low-power wake-on-demand). The ALERT/RDY pin serves as open-drain comparator output or conversion-ready indicator, configurable via register settings - supporting undervoltage/overvoltage detection without host polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full dynamic range for precision measurement systems. |
| Data Rate | 8–860 SPS, selectable in 8 discrete steps - enables trade-off between noise performance (lower rate = lower RMS noise) and responsiveness. |
| PGA Gain Range | 1× to 16× - allows direct digitization of microvolt-level sensor outputs (e.g., thermocouples) or high-voltage signals up to ±6.144 V. |
| Supply Voltage | 2.0 V to 5.5 V - supports direct interfacing with Li-ion batteries (2.7–4.2 V), 3.3 V microcontrollers, and 5 V legacy systems. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor IoT deployments. |
| Quiescent Current | 150 µA in continuous mode; 0.5–2 µA in power-down - extends battery life in portable instrumentation and wireless sensor nodes. |
Pinout & Package
RUG package: X2QFN-10, 1.5 mm × 2.0 mm × 0.4 mm, leadless, wettable flank - optimized for space-constrained PCBs and automated optical inspection (AOI).
| 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 or left floating to configure bus topology. |
| ALERT/RDY | Comparator output / conversion ready | Open-drain output indicating threshold violation (comparator mode) or completion of conversion (RDY mode); requires external pull-up. |
| GND | Analog ground | Primary reference for analog inputs and internal reference; must be connected to low-impedance system ground plane. |
| AIN0 | Positive analog input | Input pin for differential measurements (vs AIN1) or single-ended measurements (vs GND); accepts up to VDD + 0.3 V. |
| AIN1 | Negative analog input | Used as negative input in differential mode; tied to GND externally for single-ended operation on ADS1114IRUGR. |
| VDD | Power supply | 2.0–5.5 V analog/digital supply; requires 0.1 µF ceramic decoupling capacitor placed adjacent to pin. |
| SDA | I²C bidirectional data | Open-drain I²C data line; requires external pull-up to VDD (typically 4.7 kΩ) and supports Fast Mode (400 kHz) and High-Speed Mode (3.4 MHz). |
| SCL | I²C clock input | Open-drain I²C clock line; same pull-up requirement as SDA; timing compliant per JEDEC JESD39 specification. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA | Eight gain settings (1×–16×) eliminate need for external op-amp stages when measuring low-amplitude sensor signals. |
| Programmable comparator | Digital threshold detection on conversion result - reduces MCU interrupt load and enables autonomous over/under-limit response. |
| Internal voltage reference | Low-drift, factory-trimmed reference ensures stable full-scale accuracy across temperature without external component cost or layout area. |
| Single-cycle settling | Guarantees valid conversion result after each data rate interval - simplifies timing-critical firmware and eliminates need for conversion delay polling. |
| I²C interface with 4 addresses | Enables up to four ADS1114IRUGR devices on same bus without address conflict - ideal for multi-channel sensor arrays with minimal GPIO usage. |
Applications
| Battery Voltage Monitoring | Temperature Measurement System |
|---|---|
|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charge/discharge cycles in portable medical devices or power tools. IC Role / Device Role / Timing Role: ADC digitizes cell voltage at 128 SPS with 1× PGA gain; ALERT/RDY triggers MCU only on out-of-spec conditions. Use Value: Achieves ±0.05% full-scale accuracy over –20°C to +60°C while consuming <200 µA - extending runtime by >12% vs discrete solutions. |
Use Scenario: Cold-junction compensation and thermocouple linearization in industrial oven controllers. IC Role / Device Role / Timing Role: Configured for differential input with 16× PGA gain to resolve µV-level thermocouple EMF; internal reference rejects supply ripple. Use Value: Delivers 16-bit effective resolution at 8 SPS (187.5 µVRMS noise) - meets Class 1 thermocouple accuracy per IEC 60584 without calibration. |
| Portable Instrumentation | Factory Automation Sensor Node |
|
Use Scenario: Handheld multimeter front-end measuring DC voltage, current (via shunt), and resistance. IC Role / Device Role / Timing Role: Switches PGA gain and data rate dynamically per measurement type; uses single-shot mode to minimize active time. Use Value: Enables 4.5-digit resolution (±0.005% of reading) with <1 µA average current in sleep-wake cycle - supports >1000-hour battery life. |
Use Scenario: Distributed vibration sensing node using piezoelectric accelerometers in predictive maintenance systems. IC Role / Device Role / Timing Role: Digitizes conditioned accelerometer output at 860 SPS with 4× PGA; ALERT/RDY flags amplitude thresholds for edge-triggered reporting. Use Value: Captures transient events ≥100 Hz with <1 LSB INL error - eliminates need for oversampling firmware and reduces MCU processing load by 35%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IRUGR | 4-channel input (2 differential or 4 single-ended); identical PGA, comparator, and timing specs. | Supports multi-sensor acquisition without multiplexer hardware; higher pin count but same footprint. | Select when expanding from single to dual/multi-sensor monitoring without redesigning layout or firmware I²C stack. |
| ADS1014IRUGR | 12-bit resolution; 3300 SPS max; same PGA, comparator, and package; higher speed but lower precision. | Better suited for high-speed control loops (e.g., motor current feedback) where 12-bit resolution suffices. | Choose when sampling bandwidth >1 kSPS is required and 12-bit ENOB meets system accuracy targets - saves ~15% BOM cost. |
Compared with ADS1115IRUGR, ADS1114IRUGR reduces channel count and firmware complexity for single-signal applications; compared with ADS1014IRUGR, it trades speed for 4× higher resolution - making ADS1114IRUGR optimal for precision, low-bandwidth sensor digitization where layout area and power are constrained.
Availability
ADS1114IRUGR is available at Aetrix Electronics and suitable for battery voltage monitoring, portable instrumentation, and temperature measurement systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS1114IRUGR 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 family was engineered for space- and power-constrained sensor interfaces - delivering integrated signal conditioning (PGA, reference, oscillator) in ultra-small packages for industrial, medical, and portable applications.
FAQ
What is the maximum input voltage range supported by ADS1114IRUGR?
The ADS1114IRUGR supports full-scale input voltage ranges from ±256 mV to ±6.144 V, set by its programmable gain amplifier (PGA). At 1× gain, the range is ±6.144 V; at 16× gain, it is ±256 mV. Input voltages must remain within GND – 0.3 V to VDD + 0.3 V to avoid ESD diode conduction. The ADS1114IRUGR's internal reference and PGA enable direct connection to sensors like thermocouples or resistive bridges without external amplification.
Does ADS1114IRUGR require an external crystal or clock source?
No, ADS1114IRUGR does not require an external clock source. It integrates a precision internal oscillator that generates a 1 MHz clock, divided internally to produce the 250 kHz modulator frequency. This eliminates BOM cost, board space, and layout sensitivity associated with external crystals - critical for compact, cost-sensitive designs. The ADS1114IRUGR's timing stability is maintained across –40°C to +125°C without external components.
How does the ALERT/RDY pin function in ADS1114IRUGR?
The ALERT/RDY pin on ADS1114IRUGR operates in two modes: as a comparator output (alert) or conversion-ready indicator (RDY), selected via configuration register bits. In alert mode, it asserts low when the conversion result crosses user-defined high/low thresholds - enabling autonomous overvoltage/undervoltage detection. In RDY mode, it pulses low upon completion of each conversion. Both modes use open-drain output requiring an external pull-up resistor to VDD.
Can ADS1114IRUGR measure single-ended signals, and how is it configured?
Yes, ADS1114IRUGR supports single-ended measurements by connecting AIN1 to GND externally and applying the signal to AIN0. Internally, the device routes AIN1 to GND in single-ended mode - no register configuration is needed beyond setting the MUX bits to "000" (AIN0–GND). This configuration maintains the same 16-bit resolution and noise performance as differential mode, making ADS1114IRUGR suitable for unipolar sensor outputs like RTDs or potentiometers.
What is the typical power consumption of ADS1114IRUGR in continuous-conversion mode?
In continuous-conversion mode, ADS1114IRUGR draws 150 µA typical (200 µA max) at TA = 25°C and VDD = 3.3 V - independent of data rate. Power scales linearly with supply voltage (e.g., ~90 µA at 2.0 V). In power-down mode, consumption drops to 0.5–2 µA. This ultra-low quiescent current enables multi-year battery life in wireless sensor nodes, and the ADS1114IRUGR's single-shot mode further reduces average current by activating only during measurement windows.
ADS1114IRUGR 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, 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- 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:
- -
ADS1114IRUGR FAQ
1.How can I place an order for ADS1114IRUGR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1114IRUGR 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 ADS1114IRUGR reliable?
The price and inventory of ADS1114IRUGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1114IRUGR is usually 5 days.
3.What payment methods are accepted for ADS1114IRUGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1114IRUGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1114IRUGR?
ADS1114IRUGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1114IRUGR 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 ADS1114IRUGR?
For technical support, including ADS1114IRUGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1114IRUGR requirements.
6.How does Aetrix verify that ADS1114IRUGR is sourced from the original manufacturer or authorized distributors?
All ADS1114IRUGR 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 ADS1114IRUGR meets industry standards.
7.What is the process for return or replacement of ADS1114IRUGR?
All ADS1114IRUGR units undergo pre-shipment inspection (PSI). If there is an issue with ADS1114IRUGR, 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 ADS1114IRUGR part is unused and in its original packaging.
Return procedure for ADS1114IRUGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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