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Texas Instruments ADS1113IDGST
- Part No.:
- ADS1113IDGST
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS1113IDGST.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:256
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Product details
Overview
ADS1113IDGST 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, consumes only 150 µA in continuous-conversion mode, and functions across 2.0 V to 5.5 V supply range. It targets space- and power-constrained sensor measurement systems such as battery monitoring and portable instrumentation.
For engineers reviewing the ADS1113IDGST datasheet, ADS1113IDGST pinout, ADS1113IDGST application, or ADS1113IDGST equivalent, key selection criteria include its ultra-small X2QFN-10 package (1.5 mm × 2.0 mm), I²C interface with four pin-selectable addresses, single-cycle settling, and absence of PGA or comparator-distinguishing it from ADS1114/ADS1115 variants.
Technical Context
The ADS1113IDGST 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 frequency). It supports only one differential or one single-ended input channel-no multiplexer, no PGA, no comparator-and uses a simplified functional block lacking digital comparison logic or gain scaling circuitry.
Conversion modes are limited to single-shot and continuous-conversion, with programmable data rates from 8 SPS to 860 SPS. Its input stage presents a switched-capacitor topology with common-mode impedance of ~6 MΩ and differential impedance down to 4.9 MΩ (at ±2.048 V FSR), requiring careful source impedance matching for accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes-guarantees monotonicity and full-scale linearity for precision sensor digitization. |
| Max Sample Rate | 860 SPS-supports real-time monitoring of slowly varying signals like temperature or battery voltage without oversampling burden. |
| Supply Voltage | 2.0 V to 5.5 V-enables direct interfacing with Li-ion batteries (3.0–4.2 V), 3.3-V microcontrollers, and legacy 5-V systems. |
| Quiescent Current | 150 µA in continuous mode-extends battery life in portable instrumentation; drops to 2 µA in power-down state. |
| Input Configuration | 1 differential (AIN0–AIN1) or 1 single-ended (AIN0–GND)-requires external GND tie for SE mode; no internal MUX or PGA. |
| Reference | Internal 2.048-V low-drift voltage reference-eliminates need for external reference, reducing BOM count and layout area. |
| I²C Address | 4 pin-selectable addresses via ADDR pin-allows up to four ADS1113IDGST devices on same bus without address conflict. |
Pinout & Package
The ADS1113IDGST is packaged in a 10-pin X2QFN (RUG) package measuring 1.50 mm × 2.00 mm × 0.40 mm, with wettable flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | Digital input | Selects one of four I²C slave addresses (0x48–0x4B); must be tied to VDD, GND, or floating per configuration table. |
| ALERT/RDY | Digital output | Open-drain ready flag-asserts low when conversion completes; not used for comparator (ADS1113 lacks comparator logic). |
| GND | Analog ground | Primary return path for analog inputs and reference; requires low-impedance connection to system ground plane. |
| AIN0 | Analog input (+) | Positive input for differential measurements or single-ended input when AIN1 is externally tied to GND. |
| AIN1 | Analog input (–) | Negative input for differential mode; must be connected to GND for single-ended operation. |
| VDD | Analog power supply | Supplies core ADC, reference, and oscillator; requires 0.1-µF ceramic decoupling capacitor placed adjacent to pin. |
| SCL | I²C clock input | Accepts standard-mode (400 kHz) or fast-mode (1 MHz) I²C clocks; requires external pull-up to VDD. |
| SDA | I²C bidirectional data | Transfers configuration registers and conversion results; open-drain structure mandates external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small X2QFN-10 package | 1.5 mm × 2.0 mm footprint enables integration into wearables and compact sensor nodes where board space is critical. |
| Single-cycle settling | Eliminates acquisition delay between conversions-ideal for burst-mode sampling or event-triggered measurements. |
| Integrated oscillator | Removes need for external crystal or clock source, simplifying design and reducing component count and EMI sources. |
| Wide operating temperature | –40°C to +125°C rating supports deployment in automotive under-hood, industrial PLC, and outdoor IoT environments. |
| No PGA or comparator | Reduces complexity and power vs. ADS1114/ADS1115-optimized for applications with stable, known input ranges (e.g., shunt-based current sensing). |
Applications
| Battery Voltage Monitoring | Portable Instrumentation |
|---|---|
Use Scenario: Measuring cell voltage in multi-cell Li-ion packs using resistive dividers to scale down to ±2.048 V range. IC Role / Device Role / Timing Role: Precision 16-bit ADC digitizing scaled analog voltage; performs single-shot conversions triggered by host MCU every 100 ms. Use Value: Achieves ±1 LSB INL and <±3 LSB offset error over –40°C to +125°C-enabling accurate state-of-charge estimation without calibration. | Use Scenario: Digitizing thermistor or RTD outputs in handheld multimeters or environmental sensors. IC Role / Device Role / Timing Role: Single-ended ADC converting conditioned analog signal; operates in continuous mode at 128 SPS for responsive display updates. Use Value: Internal 2.048-V reference ensures stable full-scale definition across temperature, eliminating drift-induced measurement errors in field-deployed units. |
| Factory Automation Sensors | Consumer Electronics Health Monitoring |
Use Scenario: Reading 4–20 mA loop transmitters via precision shunt resistor in industrial IO modules. IC Role / Device Role / Timing Role: Differential ADC measuring mV-level drop across 250-Ω shunt; configured for ±256-mV FSR to maximize resolution. Use Value: 16-bit resolution at 860 SPS delivers 12.5-µV LSB step size-resolving <0.05% of full-scale current, meeting SIL-2 functional safety requirements. | Use Scenario: Converting photodiode or bio-potential signals in wearable pulse oximeters or ECG patches. IC Role / Device Role / Timing Role: Low-power ADC sampling analog front-end output; enters power-down between heart-rate intervals to conserve battery. Use Value: 2 µA power-down current extends coin-cell battery life beyond 12 months-critical for maintenance-free consumer health devices. |
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 |
|---|---|---|---|
| ADS1114IDGST | Includes PGA (±256 mV to ±6.144 V gain) and digital comparator; identical pinout and package. | Enables direct measurement of low-level sensor outputs (e.g., load cells) and undervoltage/overvoltage alerts without external components. | Select ADS1114IDGST if variable gain or threshold detection is required; ADS1113IDGST saves cost and power when input range is fixed and known. |
| ADS1013IDGST | 12-bit resolution, 3.3-kSPS max rate, same package and I²C interface; lower power (150 µA typical) but reduced dynamic range. | Suitable for cost-sensitive applications where 12-bit resolution suffices (e.g., basic temperature logging) and higher speed is beneficial. | Choose ADS1013IDGST for budget-constrained designs accepting 16× lower SNR; ADS1113IDGST provides 16-bit fidelity essential for precision metrology. |
Compared with ADS1114IDGST, the ADS1113IDGST omits PGA and comparator-reducing power, cost, and software overhead-but requires external signal conditioning. Against ADS1013IDGST, it trades speed for 4× resolution, delivering true 16-bit linearity critical for calibrated sensor systems.
Availability
ADS1113IDGST is available at Aetrix Electronics and suitable for battery voltage monitoring, portable instrumentation, factory automation sensors, and consumer electronics health monitoring requiring stable component supply and long-term manufacturability.
Supply support for ADS1113IDGST 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-constrained, battery-powered sensor nodes-delivering high-resolution ADC functionality with minimal external components and robust thermal performance across harsh environments.
FAQ
What is the maximum sample rate of the ADS1113IDGST?
The ADS1113IDGST supports a maximum sample rate of 860 samples per second (SPS) in continuous-conversion mode. This rate is programmable across eight discrete steps (8, 16, 32, 64, 128, 250, 475, and 860 SPS) via its configuration register. At 860 SPS, the device maintains 16-bit resolution with no missing codes, making it suitable for dynamic but non-RF sensor applications such as motor current ripple analysis or fast-response temperature monitoring.
Does the ADS1113IDGST include a programmable gain amplifier (PGA)?
No, the ADS1113IDGST does not include a programmable gain amplifier. Unlike the ADS1114IDGST and ADS1115IDGST variants, the ADS1113IDGST features only the core 16-bit delta-sigma ADC, internal voltage reference, and oscillator. Its input range is fixed per selected full-scale setting (±256 mV to ±6.144 V), with gain applied digitally in post-processing if needed. This simplifies design for applications with known, stable signal amplitudes-such as battery voltage dividers-where external amplification is unnecessary.
What package type is used for the ADS1113IDGST?
The ADS1113IDGST is supplied in a 10-pin X2QFN package (TI designation RUG), measuring 1.50 mm × 2.00 mm × 0.40 mm with wettable flanks. This ultra-small leadless package supports high-density PCB layouts and automated optical inspection. Pin compatibility is maintained across the ADS111x family in RUG, DYN (SOT-10), and DGS (VSSOP-10) packages, though thermal and electrical performance varies-RUG offers lowest profile and best thermal resistance for space-limited applications.
Can the ADS1113IDGST operate from a 2.0-V supply?
Yes, the ADS1113IDGST is fully specified to operate from a minimum supply voltage of 2.0 V up to 5.5 V. At 2.0 V, it maintains 16-bit resolution, 860-SPS maximum data rate, and –40°C to +125°C operational temperature range. Supply current remains at 150 µA typical in continuous mode, and the internal 2.048-V reference continues functioning-enabling direct use with single-cell Li-metal or alkaline batteries without LDO regulation, reducing system power loss and component count.
How many analog input channels does the ADS1113IDGST support?
The ADS1113IDGST supports one analog input channel configured either as a differential pair (AIN0–AIN1) or as a single-ended input (AIN0 referenced to GND). It does not include an input multiplexer-unlike the ADS1115IDGST-so AIN2 and AIN3 pins are not connected internally and must remain unconnected or tied to GND. For single-ended operation, AIN1 must be externally connected to GND; the device does not provide internal switching to ground.
ADS1113IDGST 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:
- 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-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1113IDGST FAQ
1.How can I place an order for ADS1113IDGST through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1113IDGST 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 ADS1113IDGST reliable?
The price and inventory of ADS1113IDGST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1113IDGST is usually 5 days.
3.What payment methods are accepted for ADS1113IDGST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1113IDGST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1113IDGST?
ADS1113IDGST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1113IDGST 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 ADS1113IDGST?
For technical support, including ADS1113IDGST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1113IDGST requirements.
6.How does Aetrix verify that ADS1113IDGST is sourced from the original manufacturer or authorized distributors?
All ADS1113IDGST 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 ADS1113IDGST meets industry standards.
7.What is the process for return or replacement of ADS1113IDGST?
All ADS1113IDGST units undergo pre-shipment inspection (PSI). If there is an issue with ADS1113IDGST, 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 ADS1113IDGST part is unused and in its original packaging.
Return procedure for ADS1113IDGST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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