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Texas Instruments ADS1110A1IDBVTG4
- Part No.:
- ADS1110A1IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1110A1IDBVTG4.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,063
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Product details
Overview
ADS1110A1IDBVTG4 from Texas Instruments is a 16-bit delta-sigma analog-to-digital converter with integrated 2.048V reference, programmable gain amplifier (PGA), and I²C interface in SOT23-6 package. It delivers ±0.01% FSR INL, 15–240 SPS data rate, and 240 µA active current for precision low-power sensing in space-constrained systems like portable instrumentation and smart transmitters.
For engineers reviewing the ADS1110A1IDBVTG4 datasheet, ADS1110A1IDBVTG4 pinout, ADS1110A1IDBVTG4 application, or ADS1110A1IDBVTG4 equivalent, key selection considerations include its fixed I²C address (1001001), differential input range (±2.048V/PGA), self-calibrating architecture, and operation across −40°C to +85°C without external clock or reference.
Technical Context
The ADS1110A1IDBVTG4 implements a fully differential, continuously self-calibrating delta-sigma modulator with digital filtering, using an internal 2.048V reference that cannot be bypassed or replaced. Its onboard oscillator drives all timing-no external clock support-and conversion resolution scales with data rate (12–16 bits).
It operates exclusively as an I²C slave device with open-drain SDA/SCL, supports Standard/Fast/High-Speed I²C modes up to 3.4 MHz, and features configurable PGA gains (1×, 2×, 4×, 8×) and two operating modes: continuous or single-shot conversion with automatic power-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit at 15 SPS; no missing codes across all data rates |
| Input Range | ±2.048V differentially (with PGA = 1); scalable to ±256mV at PGA = 8 |
| INL Error | ±0.01% of FSR max - ensures high linearity for calibrated sensor interfaces |
| Data Rate | Programmable: 15 / 30 / 60 / 240 SPS - trade-off between speed and resolution |
| I²C Address | Fixed 7-bit address 1001001 (0x49) - enables coexistence with up to 7 other ADS1110 variants on same bus |
| Supply Range | 2.7V to 5.5V - compatible with single Li-ion, 3.3V, and 5V systems |
| Active Current | 240 µA typical - enables battery-powered operation for >1 year in low-duty-cycle sensing |
Pinout & Package
SOT23-6 package (DBV), 2.9 mm × 1.6 mm × 1.15 mm, surface-mount, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2.7V–5.5V; requires 0.1 µF local bypass capacitor |
| GND | Ground reference | Common return for analog and digital sections; must be low-impedance |
| SCL | I²C clock input | Asynchronous master-driven clock; no clock stretching supported |
| SDA | I²C bidirectional data line | Open-drain; requires external pull-up resistor (typically 2.2–10 kΩ) |
| VIN+ | Differential positive analog input | Accepts voltage from GND − 0.2V to VDD + 0.2V; not for negative rail operation |
| VIN− | Differential negative analog input | Paired with VIN+; differential input impedance = 2.8 MΩ / PGA setting |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 2.048V reference | ±0.05% initial accuracy and 5 ppm/°C drift - eliminates need for external reference and reduces BOM count |
| Integrated PGA | Gains of 1×, 2×, 4×, or 8× - enables direct digitization of mV-level bridge or thermistor outputs without external amplification |
| Self-calibration | Continuous offset/gain correction - removes need for system-level calibration routines or factory trim steps |
| Single-cycle conversion | Full conversion completes in one data-rate period - simplifies timing control and avoids pipeline latency concerns |
| Low-power shutdown | 2 µA max standby current - allows microcontroller to wake ADC only when measurement is required |
Applications
| Portable Instrumentation | Industrial Process Control |
|---|---|
Use Scenario: Handheld multimeter measuring thermocouple or RTD signals with battery life >12 months. IC Role / Device Role / Timing Role: Precision ADC capturing differential sensor output at 15–60 SPS with onboard PGA scaling low-level signals to full-scale range. Use Value: Eliminates external op-amp and reference ICs, reducing PCB area by >30% and enabling sub-2 cm² form factor. |
Use Scenario: 4–20 mA loop-powered transmitter monitoring pressure or flow in hazardous environments. IC Role / Device Role / Timing Role: Isolated analog front-end digitizing conditioned sensor output with 16-bit resolution and <10 ppm/°C total drift. Use Value: Meets SIL-2 functional safety requirements via built-in self-calibration and monotonicity guarantee (no missing codes). |
| Smart Transmitters | Consumer Temperature Monitoring |
Use Scenario: Wireless HVAC sensor node transmitting calibrated temperature readings over BLE every 10 seconds. IC Role / Device Role / Timing Role: Low-power ADC performing single-shot conversions triggered by MCU, then auto-powering down until next sample. Use Value: Achieves 240 µA active current and <2 µA sleep current - extends CR2032 battery life to >3 years at 0.1% duty cycle. |
Use Scenario: Smart thermostat using NTC thermistor with ±0.1°C accuracy requirement across −10°C to +50°C. IC Role / Device Role / Timing Role: High-accuracy ADC digitizing ratiometric thermistor divider with 2.048V reference and PGA = 4 for optimal SNR. Use Value: Delivers ±0.01% FSR INL and <1.5 mV offset error - enables direct linearization in firmware without hardware trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP3421-E/P | 18-bit resolution, but fixed 3.75 SPS; no PGA; external reference required | Higher resolution at cost of speed and added external components | Choose when ultra-high resolution at low update rate justifies larger BOM and slower response |
| ADS1115IRUGT | 4-channel, programmable MUX, 16-bit, 860 SPS max; larger QFN-10 package | Multi-sensor monitoring with shared I²C bus; higher power (800 µA active) | Choose when multiple differential inputs or faster sampling are required, and board space permits QFN-10 |
Compared with MCP3421-E/P and ADS1115IRUGT, the ADS1110A1IDBVTG4 uniquely balances minimal footprint (SOT23-6), integrated reference + PGA, and 15–240 SPS flexibility-making it optimal for single-sensor, ultra-compact, battery-sensitive designs where component count and layout area are critical constraints.
Availability
ADS1110A1IDBVTG4 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADS1110A1IDBVTG4 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 focused on analog and embedded processing technologies, with decades of expertise in precision data acquisition and low-power design.
The ADS1110 product line was engineered for space- and power-constrained applications demanding high-resolution measurement without external support components-targeting portable, battery-operated, and distributed sensor systems.
FAQ
What is the I²C address of the ADS1110A1IDBVTG4?
The ADS1110A1IDBVTG4 has a fixed 7-bit I²C address of 1001001 (0x49), determined by its factory-programmed variant code "A1". This allows up to eight ADS1110 devices (A0–A7) to share one I²C bus without address conflict. The address is hardwired and cannot be changed via software or external pins.
Does the ADS1110A1IDBVTG4 require an external reference or clock?
No. The ADS1110A1IDBVTG4 integrates a precision 2.048V reference (±0.05%, 5 ppm/°C) and an internal oscillator-neither can be overridden or disabled. External references or clocks are not supported, and connecting them may damage the device or violate absolute maximum ratings.
How does the PGA affect input range and noise performance in the ADS1110A1IDBVTG4?
In the ADS1110A1IDBVTG4, PGA gain directly scales the full-scale differential input range: at PGA = 8, the range is ±256 mV, improving effective resolution for small signals. However, input-referred noise remains constant (~1.5 µVRMS), so SNR improves proportionally with gain-enabling accurate digitization of microvolt-level sensor outputs without external amplification.
Can the ADS1110A1IDBVTG4 measure single-ended signals?
No. The ADS1110A1IDBVTG4 accepts only fully differential inputs (VIN+ and VIN−). It does not support true single-ended operation relative to ground. To digitize single-ended sources, an external differential driver or instrumentation amplifier is required to convert the signal to differential format within the ±2.048V/PGA input range.
What is the operating temperature range specified for the ADS1110A1IDBVTG4?
The ADS1110A1IDBVTG4 is rated for operation from −40°C to +85°C ambient temperature. All electrical specifications-including INL, offset error, gain error, and reference drift-are guaranteed across this full industrial temperature range, making it suitable for deployment in uncontrolled environments such as factory floors or outdoor sensor enclosures.
ADS1110A1IDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 240
- Number of Inputs:
- 1
- 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:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- PGA, Selectable Address
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1110A1IDBVTG4 FAQ
1.How can I place an order for ADS1110A1IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1110A1IDBVTG4 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 ADS1110A1IDBVTG4 reliable?
The price and inventory of ADS1110A1IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1110A1IDBVTG4 is usually 5 days.
3.What payment methods are accepted for ADS1110A1IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1110A1IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1110A1IDBVTG4?
ADS1110A1IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1110A1IDBVTG4 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 ADS1110A1IDBVTG4?
For technical support, including ADS1110A1IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1110A1IDBVTG4 requirements.
6.How does Aetrix verify that ADS1110A1IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All ADS1110A1IDBVTG4 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 ADS1110A1IDBVTG4 meets industry standards.
7.What is the process for return or replacement of ADS1110A1IDBVTG4?
All ADS1110A1IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1110A1IDBVTG4, 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 ADS1110A1IDBVTG4 part is unused and in its original packaging.
Return procedure for ADS1110A1IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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