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Texas Instruments ADS1014IDGSR
- Part No.:
- ADS1014IDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS1014IDGSR.pdf
- Description:
- IC ADC 12BIT SIGMA-DELTA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,977
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Product details
Overview
ADS1014IDGSR from Texas Instruments is a 12-bit, delta-sigma analog-to-digital converter with integrated PGA, digital comparator, internal reference, and oscillator. It supports single-ended or differential input (1 channel), programmable data rates up to 3.3kSPS, ±256mV to ±6.144V input range, and operates from 2.0V to 5.5V supply. It is used in battery voltage monitoring and portable sensor interfaces where space and power are constrained.
For engineers reviewing the ADS1014IDGSR datasheet, ADS1014IDGSR pinout, ADS1014IDGSR application, or ADS1014IDGSR equivalent, key selection considerations include its 10-pin VSSOP package, I²C interface with four selectable addresses, single-cycle settling time, comparator alert functionality, and guaranteed 12-bit noise-free resolution across –40°C to +125°C.
Technical Context
The ADS1014IDGSR implements a delta-sigma ADC core with an internal 1MHz oscillator divided to 250kHz modulator frequency, enabling single-cycle settling at all data rates (128–3300 SPS). Its programmable gain amplifier supports six full-scale ranges (±0.256V to ±6.144V), directly determining LSB size (0.125mV to 3mV) without requiring external reference calibration.
It features a configurable digital comparator on the ALERT/RDY pin-supporting traditional or window modes, latching/non-latching behavior, and threshold qualification over 1/2/4 consecutive conversions. The I²C interface complies with Fast Mode (400kHz) timing and supports four pin-selectable addresses via ADDR pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit noise-free; guarantees no missing codes for precision sensor digitization |
| Max Sample Rate | 3.3kSPS; enables real-time response in battery monitoring and thermal control loops |
| Input Configuration | 1 differential or 1 single-ended channel; simplifies design for single-point sensing applications |
| PGA Gain Range | ±0.256V to ±6.144V FSR; allows direct measurement of mV-level thermocouple outputs or full-rail battery voltages |
| Supply Voltage | 2.0V to 5.5V; supports operation from Li-ion cells (3.0–4.2V) and 3.3V/5V system rails |
| Quiescent Current | 150μA in continuous mode; extends battery life in always-on portable instrumentation |
| Operating Temp | –40°C to +125°C; qualified for automotive cabin, industrial PLC, and harsh-environment deployments |
Pinout & Package
VSSOP-10 (DGS) package: 3.0mm × 4.9mm, 0.65mm pitch, leaded, thermally enhanced for PCB-level reliability in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | I²C address select | Configures one of four I²C slave addresses (0x48–0x4B); pulled high/low to set target address |
| ALERT/RDY | Open-drain comparator output / conversion ready indicator | Active-low alert on threshold violation or pulse (~8µs) signaling conversion completion; requires external pullup |
| GND | Analog ground reference | Primary return path for analog inputs and internal reference; must be low-impedance and separated from digital ground |
| AIN0 | Positive analog input | Accepts single-ended or differential (vs AIN1) signal; input impedance varies with FSR (e.g., 6MΩ at ±2.048V) |
| AIN1 | Negative analog input | Used as reference for differential measurements; tied to GND externally for single-ended mode |
| VDD | Analog power supply | Supplies core, reference, and oscillator; requires 0.1μF decoupling capacitor placed near pin |
| SDA | I²C bidirectional data line | Open-drain I/O; connects to system I²C bus with pullup resistor (typically 4.7kΩ) |
| SCL | I²C clock input | Drives serial interface timing; accepts 0.01–0.4MHz (Fast Mode) clock; requires pullup |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA with 6 FSR options | Eliminates external op-amp stages for scaling small signals (e.g., ±256mV thermocouples) or large signals (e.g., ±6.144V battery rails) |
| Programmable digital comparator | Reduces host MCU polling overhead by generating hardware alerts for over/under-voltage events without firmware intervention |
| Single-cycle settling ADC | Ensures deterministic latency - conversion time equals 1/data rate (e.g., 303μs at 3.3kSPS) - critical for closed-loop timing |
| Internal 1MHz oscillator | Removes need for external crystal or clock source, reducing BOM count and board area in space-constrained designs |
| I²C with 4 pin-selectable addresses | Enables up to four ADS1014IDGSR devices on same bus without address conflict, ideal for multi-channel sensor nodes |
Applications
| Battery Voltage Monitoring | Portable Instrumentation |
|---|---|
Use Scenario: Real-time tracking of Li-ion cell voltage during charge/discharge cycles in handheld test equipment. IC Role / Device Role / Timing Role: ADC digitizes battery terminal voltage; PGA scales ±6.144V range to match full-cell swing; comparator triggers alert on under-voltage cutoff. Use Value: Enables autonomous low-battery shutdown without MCU polling, extending runtime and preventing deep discharge damage. | Use Scenario: Compact multimeter or environmental logger measuring temperature, humidity, and supply rail with minimal external components. IC Role / Device Role / Timing Role: Single ADC handles multiple sensor types via programmable FSR and I²C address flexibility; operates from coin-cell or USB power. Use Value: Reduces component count and PCB footprint versus discrete op-amp + ADC solutions while maintaining 12-bit accuracy. |
| Factory Automation Sensors | Temperature Measurement Systems |
Use Scenario: DIN-rail mounted IO module acquiring analog signals from pressure transducers and current shunts in industrial control cabinets. IC Role / Device Role / Timing Role: Digitizes 4–20mA loop outputs or mV-level bridge sensors; operates reliably at 125°C ambient near motor drives. Use Value: High-temp rating and integrated reference eliminate drift compensation routines, simplifying calibration in field-deployed hardware. | Use Scenario: Thermocouple-based oven controller requiring cold-junction compensation and millivolt-range digitization. IC Role / Device Role / Timing Role: PGA configured for ±256mV FSR captures K-type thermocouple output; internal reference ensures stable LSB size across temperature. Use Value: Achieves <1°C accuracy without external reference or gain-setting resistors, lowering system cost and calibration burden. |
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 |
|---|---|---|---|
| ADS1015IDGSR | 4 single-ended / 2 differential channels; identical PGA, comparator, and timing specs | Supports multiplexed multi-sensor acquisition (e.g., temp + voltage + current) without external MUX | Select when expanding channel count is required; shares same footprint and software register map |
| ADS1114IDGSR | 16-bit resolution, 860SPS max, same 10-pin VSSOP package and I²C interface | Higher precision for low-noise applications (e.g., strain gauge bridges), but lower speed and higher power (300μA) | Choose when resolution >12-bit is mandatory and 860SPS suffices; trade-off is reduced throughput and increased quiescent current |
Compared with ADS1014IDGSR, ADS1015IDGSR adds channel multiplexing without sacrificing speed or power, while ADS1114IDGSR trades sample rate and current for 4 extra bits of resolution - making each alternative optimal for distinct system priorities: channel density versus raw precision.
Availability
ADS1014IDGSR is available at Aetrix Electronics and suitable for battery voltage monitoring, portable instrumentation, and factory automation sensors requiring stable component supply, long-term lifecycle support, and guaranteed authentic Texas Instruments sourcing.
Supply support for ADS1014IDGSR 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 delivering analog, embedded processing, and connectivity technologies with emphasis on reliability, energy efficiency, and system integration.
The ADS101x product line was designed for ultra-low-power, space-constrained sensor signal conditioning in portable, industrial, and automotive applications - integrating reference, oscillator, PGA, and comparator to minimize external components.
FAQ
What is the maximum input voltage range supported by the ADS1014IDGSR?
The ADS1014IDGSR supports a programmable full-scale range (FSR) from ±0.256V to ±6.144V via its integrated PGA. This is achieved using the PGA[2:0] bits in the Config register. Input voltages must remain within GND – 0.3V to VDD + 0.3V per absolute maximum ratings - so at VDD = 3.3V, ±6.144V FSR is usable but only up to ±3.3V differential input before clipping occurs. The ADS1014IDGSR's FSR selection directly defines LSB size (e.g., 0.125mV at ±0.256V).
Does the ADS1014IDGSR require an external clock or crystal?
No, the ADS1014IDGSR does not require an external clock. It contains a fully integrated 1MHz oscillator that drives the delta-sigma modulator and I²C timing logic. This eliminates the need for external timing components, reduces PCB area, and improves system reliability. The oscillator frequency drifts slightly with temperature, but this is factored into the specified gain drift (5–40 ppm/°C) and does not require user calibration. The ADS1014IDGSR operates autonomously once powered and configured via I²C.
How does the ALERT/RDY pin function on the ADS1014IDGSR?
The ALERT/RDY pin on the ADS1014IDGSR serves dual roles: it can act as a programmable digital comparator output or as a conversion-ready indicator. In comparator mode, it asserts low when conversion results exceed thresholds set in Hi_thresh/Lo_thresh registers - configurable as traditional or window mode, with latching and qualification options. In conversion-ready mode, it pulses low (~8µs) at the end of each conversion in continuous mode. The ADS1014IDGSR requires an external pullup resistor on this open-drain pin for either function.
Can the ADS1014IDGSR measure single-ended signals?
Yes, the ADS1014IDGSR supports single-ended measurements. To do so, connect AIN1 to GND externally and configure the MUX bits for AIN0–GND input. The device internally routes AIN1 to GND in single-ended mode, and the PGA applies gain to the AIN0–GND differential pair. This configuration maintains the same noise performance and accuracy as differential mode for single-ended sources with low common-mode voltage. The ADS1014IDGSR's datasheet specifies offset error separately for single-ended (±0.25 LSB) and differential (±0.5 LSB) operation.
What is the operating temperature range of the ADS1014IDGSR?
The ADS1014IDGSR is rated for operation from –40°C to +125°C ambient temperature. This extended range is validated across all electrical specifications including INL (±0.5 LSB), offset drift (0.005 LSB/°C), and supply current (150–300 μA). It is suitable for deployment in automotive engine compartments, industrial control cabinets, and outdoor sensor enclosures. The device uses a thermally enhanced VSSOP-10 (DGS) package with RθJA = 182.7°C/W, and thermal derating is not required within this full range when proper PCB copper pour is applied.
ADS1014IDGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1014IDGSR FAQ
1.How can I place an order for ADS1014IDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1014IDGSR 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 ADS1014IDGSR reliable?
The price and inventory of ADS1014IDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1014IDGSR is usually 5 days.
3.What payment methods are accepted for ADS1014IDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1014IDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1014IDGSR?
ADS1014IDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1014IDGSR 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 ADS1014IDGSR?
For technical support, including ADS1014IDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1014IDGSR requirements.
6.How does Aetrix verify that ADS1014IDGSR is sourced from the original manufacturer or authorized distributors?
All ADS1014IDGSR 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 ADS1014IDGSR meets industry standards.
7.What is the process for return or replacement of ADS1014IDGSR?
All ADS1014IDGSR units undergo pre-shipment inspection (PSI). If there is an issue with ADS1014IDGSR, 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 ADS1014IDGSR part is unused and in its original packaging.
Return procedure for ADS1014IDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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