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Texas Instruments ADS1110A4IDBVT
- Part No.:
- ADS1110A4IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1110A4IDBVT.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:363
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Product details
Overview
ADS1110A4IDBVT 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% INL, 15–240 SPS data rate, and 240 µA active current for precision differential measurements in space-constrained systems such as smart sensor transmitters.
For engineers reviewing the ADS1110A4IDBVT datasheet, ADS1110A4IDBVT pinout, ADS1110A4IDBVT application, or ADS1110A4IDBVT equivalent, key selection factors include its factory-set I²C address (1001100), guaranteed −40°C to +85°C operation, self-calibrating architecture, differential input range of ±2.048V/PGA, and single-supply 2.7V–5.5V compatibility.
Technical Context
The ADS1110A4IDBVT 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 conversion timing-no external clock is supported.
It operates exclusively as an I²C slave device with fixed 7-bit address 1001100 (0x4C), supports Standard/Fast/High-Speed I²C modes up to 3.4 MHz, and provides two registers: a 16-bit two's complement output register and an 8-bit configuration register controlling data rate (15/30/60/240 SPS), PGA gain (1/2/4/8), and conversion mode (single/continuous).
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 (full-scale = 4.096V/PGA) |
| INL Error | ±0.01% of FSR max at 16-bit mode, PGA = 1 |
| Data Rates | Programmable: 15, 30, 60, or 240 samples per second |
| PGA Gains | 1, 2, 4, or 8 - enables high-resolution measurement of sub-256mV signals |
| Supply Range | 2.7V to 5.5V - compatible with common microcontroller I/O rails |
| Quiescent Current | 240 µA active; 0.05–2 µA power-down - extends battery life in portable instruments |
Pinout & Package
SOT23-6 package (DBV designation), 2.9 mm × 1.6 mm × 1.15 mm body, gull-wing leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2.7V–5.5V; powers internal reference, modulator, and I²C interface |
| 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; carries output register and config register data |
| VIN+ | Differential analog input (+) | Non-inverting input; voltage must stay within GND−0.2V to VDD+0.2V |
| VIN− | Differential analog input (−) | Inverting input; same voltage range constraint as VIN+ |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 2.048V reference | ±0.05% initial accuracy and 5 ppm/°C drift - eliminates external reference component and layout area |
| Integrated PGA | Configurable gain up to 8 - allows 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 manual trimming |
| Single-cycle conversion | Guaranteed completion within one data-rate period - simplifies timing control in firmware |
| I²C address variants | Eight factory-programmed addresses (e.g., ADS1110A4IDBVT = 0x4C) - enables multi-sensor bus deployment without address conflict |
Applications
| Portable Instrumentation | Industrial Process Control |
|---|---|
Use Scenario: Handheld multimeter measuring millivolt-level thermocouple outputs in field service environments. IC Role / Device Role / Timing Role: Precision ADC capturing differential thermal EMF with onboard PGA gain ×8 and auto-zeroed offset. Use Value: Eliminates external op-amp and reference ICs, reducing BOM count and PCB area while maintaining 16-bit resolution at 15 SPS. | Use Scenario: 4–20 mA smart transmitter monitoring pressure sensor bridge output in hazardous-area enclosures. IC Role / Device Role / Timing Role: Low-power, self-calibrating ADC interfacing directly to ratiometric bridge with I²C digital output to microcontroller. Use Value: Enables true 16-bit measurement stability over −40°C to +85°C without recalibration, meeting SIL-2 functional safety signal chain requirements. |
| Smart Transmitters | Temperature Measurement |
Use Scenario: Wireless gas detector node digitizing catalytic bead sensor resistance changes via Wheatstone bridge. IC Role / Device Role / Timing Role: Differential ADC with 2.048V reference and PGA gain ×4, operating from coin-cell supply at 30 SPS. Use Value: Delivers <10 µV RMS noise floor and <0.01% INL - sufficient for <0.1°C RTD resolution without oversampling or external filtering. | Use Scenario: Battery-powered HVAC thermostat reading NTC thermistor in voltage-divider configuration. IC Role / Device Role / Timing Role: Single-supply ADC converting ratiometric thermistor voltage with internal reference and I²C readout. Use Value: Reduces system power by 70% vs. discrete reference + 12-bit ADC solution, extending 10-year battery life target. |
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 |
|---|---|---|---|
| ADS1115IDGSR | 4-channel, programmable MUX, 16-bit, 860 SPS max, external reference option | Supports multi-sensor scanning; lacks onboard reference accuracy and ultra-low quiescent current | Choose when multiplexing >1 sensor per device is required and board space permits larger MSOP-10 package |
| MCP3424-E/ST | 4-channel, 18-bit, 15 SPS, internal 2.048V reference (±0.05%), I²C, SOIC-14 | Higher resolution but slower speed; larger footprint and higher 330 µA supply current | Prefer when absolute 18-bit linearity is mandatory and 15 SPS suffices; avoid in space/power-constrained designs |
Compared with ADS1110A4IDBVT, ADS1115IDGSR offers channel flexibility at the cost of higher power and no guaranteed onboard reference accuracy, while MCP3424-E/ST trades speed and size for extra resolution - making ADS1110A4IDBVT optimal for compact, battery-powered, single-sensor precision measurement.
Availability
ADS1110A4IDBVT is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitter designs requiring stable component supply, long-lifecycle availability, and guaranteed −40°C to +85°C performance.
Supply support for ADS1110A4IDBVT 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 broad portfolio coverage in precision data converters, power management, and interface solutions.
The ADS1110 product line was designed specifically for ultra-compact, low-power, high-accuracy sensor signal conditioning in battery-operated and space-constrained industrial and portable equipment.
FAQ
What is the I²C address of the ADS1110A4IDBVT?
The ADS1110A4IDBVT has a fixed 7-bit I²C address of 1001100 (0x4C), set at factory. This distinguishes it from other ADS1110 variants (e.g., ADS1110A0IDBVT = 0x48). No external address pins exist - address is hardwired and non-configurable. The device responds only to this address and the I²C General Call Reset (0x00).
Does the ADS1110A4IDBVT support external voltage references?
No, the ADS1110A4IDBVT does not support external voltage references. It contains an internal 2.048V reference with ±0.05% initial accuracy and 5 ppm/°C drift, which is permanently used as the ADC's reference. The reference is not accessible externally and cannot be overridden, decoupled, or bypassed - all conversions are ratiometric to this internal source.
How does the ADS1110A4IDBVT handle power-down mode?
The ADS1110A4IDBVT enters automatic power-down after each conversion in single-shot mode, drawing only 0.05–2 µA. In continuous mode, it remains active at 240 µA. Power-down is not controlled by a dedicated pin or command - it is inherent to the conversion mode selected via the SC bit (bit 4) in the configuration register. No external reset or wake-up signal is needed; conversion restarts immediately upon ST/DRDY write in single mode.
Can multiple ADS1110A4IDBVT devices share the same I²C bus?
No - all ADS1110A4IDBVT units share identical I²C address (0x4C), so connecting more than one causes bus contention. To deploy multiple ADS1110s on one bus, use different variants (e.g., ADS1110A0IDBVT = 0x48, ADS1110A1IDBVT = 0x49). Each variant has unique factory-set address bits (aaa), enabling up to eight distinct devices per bus without software or hardware address modification.
What is the maximum achievable effective resolution of the ADS1110A4IDBVT?
The ADS1110A4IDBVT guarantees 16-bit resolution with no missing codes at 15 SPS. At higher data rates, effective resolution decreases: 15 bits at 30 SPS, 14 bits at 60 SPS, and 12 bits at 240 SPS - as confirmed in the Electrical Characteristics table. This trade-off is inherent to the delta-sigma architecture's noise-shaping and digital filter settling time, and cannot be improved via oversampling or external post-processing.
ADS1110A4IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -
ADS1110A4IDBVT FAQ
1.How can I place an order for ADS1110A4IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1110A4IDBVT 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 ADS1110A4IDBVT reliable?
The price and inventory of ADS1110A4IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1110A4IDBVT is usually 5 days.
3.What payment methods are accepted for ADS1110A4IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1110A4IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1110A4IDBVT?
ADS1110A4IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1110A4IDBVT 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 ADS1110A4IDBVT?
For technical support, including ADS1110A4IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1110A4IDBVT requirements.
6.How does Aetrix verify that ADS1110A4IDBVT is sourced from the original manufacturer or authorized distributors?
All ADS1110A4IDBVT 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 ADS1110A4IDBVT meets industry standards.
7.What is the process for return or replacement of ADS1110A4IDBVT?
All ADS1110A4IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with ADS1110A4IDBVT, 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 ADS1110A4IDBVT part is unused and in its original packaging.
Return procedure for ADS1110A4IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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