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Texas Instruments ADS1110A5IDBVTG4
- Part No.:
- ADS1110A5IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1110A5IDBVTG4.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
ADS1110A5IDBVTG4 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 data rate, and continuous self-calibration for precision measurement in space-constrained systems such as portable sensor nodes and smart transmitters.
For engineers reviewing the ADS1110A5IDBVTG4 datasheet, ADS1110A5IDBVTG4 pinout, ADS1110A5IDBVTG4 application, or ADS1110A5IDBVTG4 equivalent, key selection criteria include its fixed I²C address (1001101), −40°C to +85°C operating range, 240 µA active current, onboard oscillator (no external clock required), and differential input architecture optimized for bridge sensors and thermistors.
Technical Context
The ADS1110A5IDBVTG4 implements a fully differential delta-sigma modulator with digital filtering, using an internal 2.048V reference that cannot be bypassed or replaced. Its PGA supports gains of 1, 2, 4, or 8 to resolve sub-millivolt signals without external amplification.
It operates exclusively in I²C slave mode with fixed 7-bit address 1001101 (0x4D), supports Standard/Fast/High-Speed I²C modes up to 3.4 MHz, and features automatic power-down after single conversion - reducing idle current to 0.05 µA. No external clock, reference, or calibration circuitry is required.
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 differential; supports bipolar signal acquisition without level-shifting |
| Data Rate | Programmable: 15/30/60/240 SPS - trade-off between resolution and throughput |
| PGA Gain | Selectable 1×, 2×, 4×, or 8× - enables direct digitization of mV-level sensor outputs |
| Reference Accuracy | 2.048V ±0.05% (±1.02 mV) - eliminates need for external precision reference |
| INL Error | ±0.01% of FSR max - ensures monotonicity and high linearity for calibration-critical apps |
| Supply Range | 2.7V to 5.5V - compatible with single-cell Li-ion, 3.3V, and 5V logic rails |
| Active Current | 240 µA typical - enables battery 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 | Power supply input | Accepts 2.7V–5.5V; requires 0.1 µF local bypass capacitor |
| GND | Ground reference | Analog/digital common return; must be low-impedance connection |
| SCL | I²C clock input | Asynchronous master-driven clock; open-drain, requires pull-up resistor |
| SDA | I²C data bidirectional line | Open-drain, shared bus line; requires pull-up resistor and supports multi-drop |
| VIN+ | Differential positive input | Non-inverting input; accepts GND − 0.2V to VDD + 0.2V |
| VIN− | Differential negative input | Inverting input; same voltage range as VIN+; forms differential pair with VIN+ |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 2.048V reference | ±0.05% initial accuracy and 5 ppm/°C drift - removes external reference design risk and BOM cost |
| Continuous self-calibration | Automatically corrects offset/gain drift in real time - no user intervention or firmware overhead required |
| Single-cycle conversion | Completes full 16-bit conversion in one data-rate period - simplifies timing control and interrupt handling |
| I²C interface with 8 addresses | ADS1110A5IDBVTG4 uses fixed address 1001101 (0x4D) - enables up to 8 devices on same bus without address conflict |
| Low-power shutdown mode | 0.05 µA quiescent current - extends battery life in intermittent-read applications like environmental monitors |
| Differential input architecture | Rejects common-mode noise up to 105 dB at PGA=8 - improves immunity in noisy industrial environments |
Applications
| Bridge Sensor Monitoring | Thermistor-Based Temperature Sensing |
|---|---|
|
Use Scenario: Measuring microvolt-level output from load cells or strain gauges in handheld test equipment. IC Role / Device Role / Timing Role: ADC front-end with PGA gain ×8 and 16-bit resolution at 15 SPS to resolve <1 µV changes. Use Value: Eliminates external instrumentation amplifier and reference, reducing PCB area by >30% and component count by 4. |
Use Scenario: High-accuracy temperature measurement in HVAC controllers using NTC thermistors with 10 kΩ nominal resistance. IC Role / Device Role / Timing Role: Differential ADC digitizing ratiometric thermistor voltage with onboard 2.048V reference for stable scaling. Use Value: Achieves ±0.1°C accuracy over −20°C to +70°C without factory calibration due to <0.01% INL and 5 ppm/°C reference drift. |
| Smart Industrial Transmitter | Portable Battery-Powered Data Logger |
|
Use Scenario: Converting 4–20 mA loop sensor signals via precision shunt resistor in field-mounted process transmitters. IC Role / Device Role / Timing Role: Low-drift ADC with 240 µA supply current and continuous self-calibration for long-term stability in unattended operation. Use Value: Maintains <±0.05% FSR total error over 10-year deployment without recalibration, meeting SIL-2 functional safety requirements. |
Use Scenario: Logging ambient light, humidity, and pressure in compact IoT sensor nodes powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Ultra-low-power ADC operating in single-shot mode, triggered every 10 seconds to minimize average current. Use Value: Enables >2-year battery life at 240 µA active + 0.05 µA shutdown current, with no external power management IC needed. |
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 | 16-bit, 4-channel, programmable MUX, 860 µA active current, larger VSSOP-10 package | Supports multiplexed multi-sensor inputs; higher power and footprint | Choose ADS1115IDGSR when measuring ≥2 differential or 4 single-ended signals per node |
| MCP3421A0T-E/CH | 18-bit, single-channel, 2.048V reference (±0.05%), 150 µA active current, SOT23-6, I²C address 1001000 | Higher resolution but slower max rate (3.75 SPS); no PGA; lower supply current | Choose MCP3421A0T-E/CH when ultimate DC precision > speed is required and gain adjustment is handled externally |
Compared with ADS1110A5IDBVTG4, ADS1115IDGSR adds channel flexibility at cost of size and power, while MCP3421A0T-E/CH trades conversion speed for extra 2 bits of resolution and lower quiescent current - making ADS1110A5IDBVTG4 optimal for compact, battery-aware designs needing balanced speed, gain, and integration.
Availability
ADS1110A5IDBVTG4 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitter applications requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for ADS1110A5IDBVTG4 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 industrial-grade signal chain solutions.
The ADS1110 series was designed specifically for space- and power-constrained measurement systems where integration, self-calibration, and ease of use outweigh the need for multi-channel or ultra-high-speed performance.
FAQ
What is the I²C address of the ADS1110A5IDBVTG4?
The ADS1110A5IDBVTG4 has a fixed 7-bit I²C address of 1001101 (0x4D), determined by factory-set address bits aaa = 101. This allows up to eight ADS1110 variants (A0–A7) to coexist on the same I²C bus without conflict. The address is hardwired and cannot be changed via software or external pins.
Does the ADS1110A5IDBVTG4 require an external reference or clock?
No, the ADS1110A5IDBVTG4 does not require an external reference or clock. It integrates a precision 2.048V reference (±0.05%, 5 ppm/°C) and an onboard oscillator - both are mandatory and non-bypassable. External references or clocks are neither supported nor electrically possible per the device architecture.
How does the PGA affect input impedance and measurement accuracy?
The PGA gain setting directly scales the ADS1110A5IDBVTG4's differential input impedance: 2.8 MΩ/PGA. At PGA=8, impedance drops to ~350 kΩ. High-impedance sources (>10 kΩ) may cause gain/offset errors; buffering is recommended for sources exceeding 1/10th of this value. The PGA also reduces effective LSB size - e.g., at PGA=8, 1 LSB = 15.625 µV - enabling finer resolution of small signals.
Can the ADS1110A5IDBVTG4 measure single-ended signals?
No, the ADS1110A5IDBVTG4 only supports fully differential input (VIN+ and VIN−). It cannot perform true single-ended measurements because it lacks a dedicated ground-referenced input channel or internal mux. To digitize single-ended sources, external circuitry (e.g., instrumentation amplifier or level-shifting network) is required to convert to differential format before connection.
What is the maximum sampling rate and corresponding resolution for the ADS1110A5IDBVTG4?
The ADS1110A5IDBVTG4 supports four programmable data rates: 15, 30, 60, and 240 SPS. Resolution varies with rate: 16 bits at 15 SPS, 15 bits at 30 SPS, 14 bits at 60 SPS, and 12 bits at 240 SPS - all with guaranteed no missing codes. The 15 SPS mode delivers highest DC precision; 240 SPS prioritizes responsiveness for dynamic signals within its bandwidth limit.
ADS1110A5IDBVTG4 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:
- -
ADS1110A5IDBVTG4 FAQ
1.How can I place an order for ADS1110A5IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1110A5IDBVTG4 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 ADS1110A5IDBVTG4 reliable?
The price and inventory of ADS1110A5IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1110A5IDBVTG4 is usually 5 days.
3.What payment methods are accepted for ADS1110A5IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1110A5IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1110A5IDBVTG4?
ADS1110A5IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1110A5IDBVTG4 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 ADS1110A5IDBVTG4?
For technical support, including ADS1110A5IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1110A5IDBVTG4 requirements.
6.How does Aetrix verify that ADS1110A5IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All ADS1110A5IDBVTG4 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 ADS1110A5IDBVTG4 meets industry standards.
7.What is the process for return or replacement of ADS1110A5IDBVTG4?
All ADS1110A5IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1110A5IDBVTG4, 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 ADS1110A5IDBVTG4 part is unused and in its original packaging.
Return procedure for ADS1110A5IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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