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Texas Instruments ADS1110A6IDBVT
- Part No.:
- ADS1110A6IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1110A6IDBVT.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,656
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Product details
Overview
ADS1110A6IDBVT 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 ±2.048V differential input range, 15–240 SPS programmable data rate, and continuous self-calibration for high-accuracy measurements in space-constrained systems such as portable sensor nodes and smart transmitters.
For engineers reviewing the ADS1110A6IDBVT datasheet, ADS1110A6IDBVT pinout, ADS1110A6IDBVT application, or ADS1110A6IDBVT equivalent, key selection considerations include its fixed I²C address (1001110), onboard 2.048V reference accuracy (±0.05%), PGA gain options (1/2/4/8), differential input impedance (2.8 MΩ/PGA), and operating temperature range (−40°C to +85°C).
Technical Context
The ADS1110A6IDBVT implements a fully differential delta-sigma modulator with digital filtering, using an internal 2.048V reference and factory-trimmed oscillator. Its self-calibrating architecture eliminates external calibration components while maintaining 0.01% FSR INL and no missing codes across all data rates.
It operates exclusively in I²C slave mode with eight factory-programmed addresses; ADS1110A6IDBVT uses address 1001110 (0x4E). The device supports Standard, Fast, and High-Speed I²C modes up to 3.4 MHz and features two registers - 16-bit output register (two's complement) and 8-bit configuration register controlling data rate, PGA, and conversion mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit at 15 SPS; 12–16 bits selectable via DR bits - determines dynamic range and LSB size (e.g., 12-bit mode yields 2048 codes over ±2.048V) |
| Data Rate | 15/30/60/240 SPS - sets conversion latency and effective noise bandwidth; 15 SPS enables highest resolution and lowest noise |
| PGA Gain | 1, 2, 4, or 8 - scales input signal before ADC core to maximize SNR for sub-2.048V differential signals without external amplification |
| Reference Accuracy | 2.048 V ±0.05% - defines absolute measurement accuracy; drift of 5 ppm/°C limits long-term thermal error in uncalibrated systems |
| INL | ±0.01% of FSR max - ensures monotonicity and linearity critical for precision sensor interfacing and closed-loop control feedback |
| Supply Current | 240 µA active / 0.05 µA power-down - enables battery operation for >1 year in low-duty-cycle sensor acquisition (e.g., 15 SPS + auto power-down) |
| Input Range | ±2.048 V differential - supports direct connection to bridge sensors, RTDs, and thermocouples with appropriate front-end conditioning |
Pinout & Package
SOT23-6 package (DBV designation), 1.6 mm × 2.9 mm footprint, 1.1 mm height, lead-free and RoHS compliant. Thermal pad not present; standard reflow profile applies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2.7 V to 5.5 V; powers internal reference, oscillator, and ADC core; bypass capacitor required |
| GND | Ground reference | Analog and digital ground common point; must be low-impedance return path for reference stability |
| SCL | I²C clock input | Asynchronous master-driven clock; open-drain compatible; no internal pull-up; requires external pull-up resistor |
| SDA | I²C bidirectional data line | Open-drain I/O; shares bus with other slaves; requires external pull-up; acknowledges address and data bytes |
| VIN+ | Differential positive input | Non-inverting analog input; accepts voltage from GND − 0.2 V to VDD + 0.2 V; high-impedance switched-capacitor node |
| VIN− | Differential negative input | Inverting analog input; same voltage range as VIN+; differential pair forms full-scale range of ±2.048 V / PGA |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 2.048V reference | Eliminates need for external precision reference; ±0.05% initial accuracy and 5 ppm/°C drift reduce system-level calibration burden |
| Programmable gain amplifier (PGA) | Configurable gain of 1/2/4/8 enables direct digitization of mV-level sensor outputs (e.g., load cells, strain gauges) without discrete op-amps |
| Continuous self-calibration | Automatically corrects offset and gain errors in real time; no user intervention or host firmware overhead required |
| Single-cycle conversion | Completes full 16-bit conversion in one data-rate period (e.g., 66.7 ms at 15 SPS); simplifies timing design vs. multi-cycle architectures |
| I²C interface with 8 addresses | ADS1110A6IDBVT uses fixed address 1001110 (0x4E); allows up to eight identical devices on one bus without address conflict or software remapping |
Applications
| Portable Instrumentation | Industrial Process Control |
|---|---|
|
Use Scenario: Handheld multimeter measuring thermocouple or RTD outputs in field service environments. IC Role / Device Role / Timing Role: Precision ADC capturing differential sensor voltage with onboard reference and PGA scaling for optimal resolution. Use Value: Eliminates external reference and gain stages, reducing BOM count and PCB area while maintaining ±0.1°C temperature accuracy over −40°C to +85°C. |
Use Scenario: Distributed I/O module acquiring pressure and flow sensor data in PLC-controlled factory lines. IC Role / Device Role / Timing Role: Low-power, self-calibrating ADC interfacing to 4–20 mA loop receivers and bridge transducers via I²C. Use Value: Enables deterministic 15–240 SPS sampling synchronized to controller scan cycles; 240 µA active current supports fanless enclosure thermal design. |
| Smart Transmitters | Consumer Goods Sensing |
|
Use Scenario: Two-wire 4–20 mA smart transmitter with HART communication, digitizing strain gauge bridge output. IC Role / Device Role / Timing Role: Primary ADC providing high-resolution differential measurement with integrated PGA to match bridge sensitivity (e.g., 2 mV/V). Use Value: Onboard 2.048V reference and continuous calibration ensure long-term zero and span stability (<0.01%/year) without periodic field recalibration. |
Use Scenario: Battery-powered air quality monitor measuring electrochemical gas sensor output. IC Role / Device Role / Timing Role: Ultra-low-power ADC performing periodic 15 SPS conversions and auto power-down between samples. Use Value: 0.05 µA power-down current extends CR2032 battery life to >2 years in sleep-dominated operation, while 16-bit resolution resolves sub-ppm gas concentration changes. |
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 |
|---|---|---|---|
| ADS1115IRUGT | 4-channel, programmable MUX, 16-bit, 860 SPS max, external reference option, QFN-10 package | Supports multiplexed multi-sensor systems; lacks onboard reference but offers greater flexibility and higher speed | Choose ADS1115IRUGT when expanding beyond single differential channel or requiring external reference for ratiometric sensing. |
| MCP3421A0T-E/CH | 18-bit, 3.75 SPS, internal 2.048V reference (±0.05%), I²C, SOT23-6, no PGA | Higher resolution but slower; no programmable gain - requires external amplification for low-level signals | Choose MCP3421A0T-E/CH only when 18-bit resolution at <4 SPS suffices and PGA functionality is unnecessary. |
Compared with ADS1110A6IDBVT, ADS1115IRUGT adds channel multiplexing and speed at the cost of larger package and no integrated PGA, while MCP3421A0T-E/CH trades speed and gain flexibility for higher raw resolution - making ADS1110A6IDBVT optimal for compact, single-channel, gain-adaptive sensor interfaces.
Availability
ADS1110A6IDBVT is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitter designs requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for ADS1110A6IDBVT 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 converters and sensor signal chains.
The ADS1110 series was designed specifically for ultra-compact, low-power, self-contained analog front-ends in battery-operated and space-constrained measurement systems - emphasizing integration, ease of use, and minimal external component count.
FAQ
What is the I²C address of the ADS1110A6IDBVT?
The ADS1110A6IDBVT has a fixed 7-bit I²C address of 1001110 (0x4E), set at the factory. This address is unique among the ADS1110 family variants and allows up to eight ADS1110 devices (A0–A7) to coexist on the same I²C bus without conflict. No software configuration is needed to select this address - it is hardwired and immutable.
Does the ADS1110A6IDBVT require an external reference?
No, the ADS1110A6IDBVT does not require or support an external reference. It integrates a precision 2.048V reference with ±0.05% initial accuracy and 5 ppm/°C drift. This reference is used exclusively by the ADC core and cannot be accessed or replaced externally - all conversions are inherently ratiometric to this internal source.
Can the ADS1110A6IDBVT measure single-ended signals?
No, the ADS1110A6IDBVT only supports fully differential input (VIN+ and VIN−). It does not provide a pseudo-differential or single-ended mode. To measure single-ended sources, external circuitry (e.g., instrumentation amplifier or level-shifting network) is required to convert the signal into a differential format within the ±2.048V range.
How does the ADS1110A6IDBVT handle power-down mode?
In single-conversion mode, the ADS1110A6IDBVT automatically enters power-down after completing a conversion, drawing only 0.05 µA typical. Writing to the configuration register or initiating a new conversion wakes it. This feature reduces average current in intermittent sampling applications - e.g., at 15 SPS with 1-ms active time per sample, average current drops below 1 µA.
What is the maximum input voltage allowed on VIN+ and VIN− pins of the ADS1110A6IDBVT?
The absolute maximum voltage on VIN+ or VIN− is GND − 0.2 V to VDD + 0.2 V. Exceeding these limits risks latch-up or permanent damage. For proper operation, the differential input must stay within ±2.048V/PGA, and common-mode voltage must remain within the specified range - typically near mid-supply for optimal CMRR performance.
ADS1110A6IDBVT 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:
- -
ADS1110A6IDBVT FAQ
1.How can I place an order for ADS1110A6IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1110A6IDBVT 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 ADS1110A6IDBVT reliable?
The price and inventory of ADS1110A6IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1110A6IDBVT is usually 5 days.
3.What payment methods are accepted for ADS1110A6IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1110A6IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1110A6IDBVT?
ADS1110A6IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1110A6IDBVT 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 ADS1110A6IDBVT?
For technical support, including ADS1110A6IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1110A6IDBVT requirements.
6.How does Aetrix verify that ADS1110A6IDBVT is sourced from the original manufacturer or authorized distributors?
All ADS1110A6IDBVT 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 ADS1110A6IDBVT meets industry standards.
7.What is the process for return or replacement of ADS1110A6IDBVT?
All ADS1110A6IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with ADS1110A6IDBVT, 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 ADS1110A6IDBVT part is unused and in its original packaging.
Return procedure for ADS1110A6IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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