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Texas Instruments ADS1110A4IDBVTG4
- Part No.:
- ADS1110A4IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1110A4IDBVTG4.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,230
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Product details
Overview
ADS1110A4IDBVTG4 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 precision measurement in space-constrained systems such as portable sensor transmitters.
For engineers reviewing the ADS1110A4IDBVTG4 datasheet, ADS1110A4IDBVTG4 pinout, ADS1110A4IDBVTG4 application, or ADS1110A4IDBVTG4 equivalent, key selection criteria include its fixed I²C address (1001100), PGA gain options (1/2/4/8), on-chip oscillator (no external clock required), and guaranteed no missing codes across all data rates.
Technical Context
The ADS1110A4IDBVTG4 implements a fully differential delta-sigma modulator with digital filtering, using an internal 2.048V reference that cannot be bypassed or replaced. Its self-calibration circuitry operates continuously without user intervention and corrects both offset and gain errors in real time.
It supports two operating modes-continuous conversion and single-shot-with ST/DRDY bit status indicating data freshness. The I²C interface operates at Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes, and the device responds only to its factory-programmed 7-bit address (1001100) and General Call Reset (00h + 06h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes at 15SPS; reduces to 12-bit at 240SPS per datasheet Table 1 |
| Input Range | ±2.048V differential full-scale (FSR), scalable by PGA gain (1–8) |
| Data Rate | Programmable: 15/30/60/240 SPS - directly sets resolution and noise performance |
| Reference Accuracy | 2.048V ±0.05% (±1.024 mV), enabling absolute measurement without external reference |
| INL | ±0.01% of FSR max at 16-bit mode, ensuring high linearity for calibration-critical applications |
| Supply Range | 2.7V to 5.5V - compatible with single-cell Li-ion, 3.3V, and 5V logic domains |
| Quiescent Current | 240 µA active, 0.05–2 µA power-down - enables battery operation for >1 year in low-duty-cycle sensing |
Pinout & Package
SOT23-6 package (DBV designation), 2.9 mm × 1.6 mm × 1.15 mm body, lead pitch 0.95 mm, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2.7–5.5V; 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 input only - ADS1110A4IDBVTG4 never drives SCL; requires external pull-up |
| SDA | I²C bidirectional data | Open-drain I/O - requires external pull-up; supports Standard/Fast/High-Speed I²C modes |
| 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 limits as VIN+; differential pair defines measurement window |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 2.048V reference | Eliminates need for external reference IC or resistor divider; drift ≤5 ppm/°C ensures stable FSR over temperature |
| Programmable Gain Amplifier (PGA) | Gains of 1/2/4/8 allow direct digitization of sub-256 mV signals without external amplification |
| Continuous self-calibration | Removes system-level offset/gain drift in real time; no host firmware overhead or calibration routines required |
| Single-cycle conversion | Completes full 16-bit conversion in one data-rate period (e.g., 66.7 ms at 15 SPS), enabling deterministic timing |
| I²C address variant A4 | Fixed 7-bit address 1001100 enables coexistence with up to seven other ADS1110 variants on same bus |
Applications
| Portable Sensor Transmitter | Industrial 4–20 mA Loop Sensor |
|---|---|
Use Scenario: Battery-powered temperature/humidity transmitter with microcontroller and wireless MCU. IC Role / Device Role / Timing Role: Primary ADC digitizing bridge or thermistor output; provides calibrated 16-bit readings via I²C every 100–500 ms. Use Value: Onboard reference and self-calibration eliminate factory calibration steps; low 240 µA current extends battery life beyond 2 years at 1 SPS sampling. | Use Scenario: Loop-powered field sensor converting RTD or strain gauge output into 4–20 mA signal. IC Role / Device Role / Timing Role: High-accuracy front-end ADC feeding DAC or current-output stage; operates from loop-derived 3.3V rail. Use Value: ±2.048V differential input matches common industrial sensor outputs; PGA gain = 4 enables 512 mV full-scale for 100 Ω PT100 with 4-wire configuration. |
| Smart Home Energy Monitor | Medical Patient Vital Sign Module |
Use Scenario: AC mains energy metering add-on board for smart home hub, measuring current via shunt or CT. IC Role / Device Role / Timing Role: Isolated current-sense ADC capturing differential shunt voltage; communicates via isolated I²C. Use Value: 15 SPS mode provides 66.7 ms integration time to reject 50/60 Hz line noise; INL < ±0.01% ensures accurate kWh calculation over lifetime. | Use Scenario: Wearable pulse oximeter or ECG front-end acquiring biopotential signals at low power. IC Role / Device Role / Timing Role: Low-noise, low-power ADC digitizing amplified analog bio-signals before digital processing. Use Value: Single-conversion mode with automatic power-down reduces average current to <1 µA between samples; PGA gain = 8 supports µV-level signal capture. |
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; requires external reference or uses internal 2.048V; larger VSSOP-10 package | Supports multi-sensor polling (e.g., temp + voltage + current); not pin-compatible; needs PCB redesign | Select when expanding channel count and accepting larger footprint; not suitable for drop-in replacement |
| MCP3424-E/ST | 4-channel, 18-bit, 15 SPS max; internal 2.048V reference (±0.05%), PGA (1–16); I²C address configurable via pins | Higher resolution but slower; pinout differs (TSSOP-14); no continuous self-calibration - requires periodic host-initiated calibration | Choose for ultra-high-resolution static measurements where calibration latency is acceptable |
Compared with ADS1110A4IDBVTG4, ADS1115IDGSR offers more channels and speed but increases board area and complexity, while MCP3424-E/ST trades off conversion speed for resolution and lacks autonomous calibration - making ADS1110A4IDBVTG4 optimal for compact, self-contained, maintenance-free sensing nodes.
Availability
ADS1110A4IDBVTG4 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitter designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ADS1110A4IDBVTG4 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 acquisition and low-power design.
The ADS1110 product line was engineered for ultra-compact, self-contained sensor signal chains in battery-operated and space-constrained industrial and consumer devices - prioritizing integration, calibration autonomy, and minimal external components.
FAQ
What is the I²C address of the ADS1110A4IDBVTG4?
The ADS1110A4IDBVTG4 has a fixed 7-bit I²C address of 1001100 (0x4C in hexadecimal). This address is factory-programmed and cannot be changed. It allows up to eight ADS1110 variants (A0–A7) to share the same I²C bus without address conflict, provided each uses a unique variant code.
Does the ADS1110A4IDBVTG4 require an external reference or clock?
No. The ADS1110A4IDBVTG4 integrates a precision 2.048V reference (±0.05%, 5 ppm/°C drift) and an onboard oscillator. Neither can be disabled or replaced - the device operates autonomously with only VDD, GND, SDA, SCL, and analog inputs connected.
How does the PGA setting affect the input range and noise performance of the ADS1110A4IDBVTG4?
With PGA gain = G, the full-scale differential input range becomes ±2.048V/G. For example, at PGA = 8, the range is ±256 mV. Higher gain increases effective resolution for small signals but reduces headroom and may amplify input-referred noise - datasheet specifies input-referred noise decreases with higher PGA due to improved SNR at lower input amplitudes.
Can the ADS1110A4IDBVTG4 operate from a 3.3V supply?
Yes. The ADS1110A4IDBVTG4 supports 2.7V to 5.5V supply voltage. At 3.3V, it draws 240 µA typical active current and maintains full 16-bit performance at 15 SPS. Logic levels remain compatible: VIH ≥ 0.7×VDD (≥2.31V) and VIL ≤ 0.3×VDD (≤0.99V), matching standard 3.3V I/O thresholds.
What is the meaning of the ST/DRDY bit in the ADS1110A4IDBVTG4 configuration register?
The ST/DRDY bit (bit 7) serves dual roles: when written, it triggers a single conversion in single-shot mode; when read, it indicates data freshness - '0' means the output register contains new, unread data; '1' means the data has already been read. In continuous mode, ST/DRDY reflects whether the latest conversion result is ready and un-read.
ADS1110A4IDBVTG4 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:
- -
ADS1110A4IDBVTG4 FAQ
1.How can I place an order for ADS1110A4IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1110A4IDBVTG4 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 ADS1110A4IDBVTG4 reliable?
The price and inventory of ADS1110A4IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1110A4IDBVTG4 is usually 5 days.
3.What payment methods are accepted for ADS1110A4IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1110A4IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1110A4IDBVTG4?
ADS1110A4IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1110A4IDBVTG4 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 ADS1110A4IDBVTG4?
For technical support, including ADS1110A4IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1110A4IDBVTG4 requirements.
6.How does Aetrix verify that ADS1110A4IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All ADS1110A4IDBVTG4 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 ADS1110A4IDBVTG4 meets industry standards.
7.What is the process for return or replacement of ADS1110A4IDBVTG4?
All ADS1110A4IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1110A4IDBVTG4, 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 ADS1110A4IDBVTG4 part is unused and in its original packaging.
Return procedure for ADS1110A4IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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