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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Texas Instruments ADS1100A0IDBVRG4

Name: ADS1100A0IDBVRG4
Brand: Texas Instruments
SKU: ADS1100A0IDBVRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADS1100A0IDBVRG4

Manufacturer:: Texas Instruments

Category:: Analog to Digital Converters (ADC)

Package:: SOT-23-6

Datasheet:: ADS1100A0IDBVRG4.pdf

Description:: IC ADC 16BIT SIGMA-DELTA SOT23-6

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Product details

Overview

ADS1100A0IDBVRG4 from Texas Instruments is a self-calibrating, 16-bit delta-sigma analog-to-digital converter with differential inputs, I²C interface, programmable gain amplifier (PGA = 1/2/4/8), and 8–128 SPS data rate in SOT23-6 package. It operates ratiometrically using the supply as reference, draws only 90 µA active current, and targets high-resolution sensor measurement in space-constrained systems.

For engineers reviewing the ADS1100A0IDBVRG4 datasheet, ADS1100A0IDBVRG4 pinout, ADS1100A0IDBVRG4 application, or ADS1100A0IDBVRG4 equivalent, key selection criteria include its guaranteed 16-bit no-missing-codes performance at 8 SPS, ±0.0125% FSR INL, 4 µV_P-P noise, continuous self-calibration, and factory-programmed I²C address 1001000 (0x48) - all validated for use in portable instrumentation, smart transmitters, and industrial process control.

Technical Context

The ADS1100A0IDBVRG4 implements a fully differential delta-sigma modulator with integrated digital filter and internal system clock (~275 kHz), eliminating external timing components. Its ratiometric conversion uses V_DD as reference, and input impedance varies with PGA setting (e.g., 2.4 MΩ/PGA differential, 8 MΩ common-mode).

It supports two operating modes - continuous conversion (ST/BSY always reads 1) and single conversion (auto-power-down post-conversion) - controlled via an 8-bit configuration register. The I²C interface is slave-only, compatible with Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes, with General Call Reset (00H + 06H) support.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	Up to 16 bits with no missing codes at 8 SPS; reduces to 12 bits at 128 SPS per data rate mode.
Data Rate	Selectable 8/16/32/128 samples per second; determines resolution, noise, and power trade-offs.
PGA Gain	Programmable 1×, 2×, 4×, or 8×; enables high-resolution measurement of sub-100 mV differential signals.
INL	±0.0125% of full-scale range (FSR) max at 16-bit mode, PGA = 1 - ensures linearity critical for precision sensor interfaces.
Supply Current	90 µA typical active; 0.05–2 µA in power-down - enables battery-powered operation for >1 year on coin cell.
I²C Address	Fixed 7-bit address 1001000 (0x48); one of eight factory-set variants enabling multi-device bus sharing.
Noise	4 µV_P-P (0.00012% FSR at V_DD = 5 V, PGA = 1, 8 SPS) - supports <16-bit effective resolution in low-noise applications.

Pinout & Package

SOT23-6 package (DBV), 1.6 mm × 2.9 mm × 1.15 mm, surface-mount, moisture-sensitive level 1. Pin 1 marked by dot or orientation notch; marking "AD0" confirms I²C address 1001000.

Pin/Terminal	Circuit Role	Design Meaning
1 - VIN+	Differential analog input positive	Non-inverting input; accepts voltage up to V_DD + 0.2 V; requires low-impedance source or buffering for >10 kΩ sources.
2 - GND	Analog/digital ground reference	Common return for analog inputs, digital interface, and supply; must be low-inductance connection to minimize noise coupling.
3 - SCL	I²C clock input	Master-generated clock; open-drain compatible; requires external pull-up (typically 4.7 kΩ to V_DD).
4 - VIN−	Differential analog input negative	Inverting input; same voltage range as VIN+; differential pair enables common-mode rejection up to 100 dB (PGA = 8).
5 - VDD	Power supply input	2.7–5.5 V single supply; also serves as ratiometric reference; bypass with 0.1 µF ceramic capacitor near pin.
6 - SDA	I²C bidirectional data line	Open-drain output/input; shares bus with other I²C slaves; requires same pull-up as SCL.

Key Features

Feature	Design Value
Continuous self-calibration	Automatically corrects offset and gain drift over temperature and time - eliminates need for manual calibration or system-level compensation.
Single-cycle conversion	Completes full 16-bit conversion in one data-rate period (e.g., 125 ms at 8 SPS) - simplifies timing control and enables deterministic sampling intervals.
Ratiometric operation	Uses V_DD as reference - removes need for external precision voltage reference and rejects supply ripple in measurement accuracy.
Low-noise PGA	Input-referred noise as low as 4 µV_P-P at 8 SPS with PGA = 1 - enables direct digitization of thermocouple or bridge outputs without external amplification.
Auto power-down	Enters ultra-low-current state (<2 µA) after each conversion in single-shot mode - extends battery life in intermittent-sensing applications.

Applications

Portable Instrumentation	Industrial Process Control
Use Scenario: Handheld multimeter or environmental sensor node measuring temperature, pressure, or humidity with microamp-level power budget. IC Role / Device Role / Timing Role: Primary ADC digitizing differential bridge or thermistor outputs; provides 16-bit resolution at 8 SPS with built-in PGA and self-calibration. Use Value: Eliminates external op-amp and reference ICs, reducing BOM count and PCB area while maintaining ±0.0125% linearity across –40°C to +85°C.	Use Scenario: 4–20 mA loop-powered transmitter monitoring flow, level, or valve position in factory automation. IC Role / Device Role / Timing Role: High-accuracy front-end ADC interfacing to strain-gauge or RTD sensors; communicates via I²C to host MCU with minimal GPIO usage. Use Value: Ratiometric operation rejects supply variation inherent in loop-powered designs; 4 µV_P-P noise ensures stable 16-bit readings despite EMI in industrial environments.
Smart Transmitters	Temperature Measurement Systems
Use Scenario: Wireless gas detector or corrosion monitor transmitting calibrated sensor data over BLE or LoRaWAN. IC Role / Device Role / Timing Role: Low-power ADC acquiring calibrated analog sensor data; operates in single-conversion mode to minimize active time and average current. Use Value: 90 µA active current and auto power-down enable >5-year battery life; factory-set I²C address (0x48) avoids bus conflicts in multi-sensor nodes.	Use Scenario: Precision oven controller or medical thermometer requiring <0.1°C accuracy from thermistor or RTD. IC Role / Device Role / Timing Role: Differential ADC with PGA = 4 or 8 amplifying small thermistor voltage changes; uses internal clock and no external components. Use Value: Continuous self-calibration maintains ±2.5 mV offset error over temperature; INL ≤ ±0.0125% FSR ensures linear response across full measurement range.

Portable Instrumentation

Industrial Process Control

Use Scenario: Handheld multimeter or environmental sensor node measuring temperature, pressure, or humidity with microamp-level power budget.

IC Role / Device Role / Timing Role: Primary ADC digitizing differential bridge or thermistor outputs; provides 16-bit resolution at 8 SPS with built-in PGA and self-calibration.

Use Value: Eliminates external op-amp and reference ICs, reducing BOM count and PCB area while maintaining ±0.0125% linearity across –40°C to +85°C.

Use Scenario: 4–20 mA loop-powered transmitter monitoring flow, level, or valve position in factory automation.

IC Role / Device Role / Timing Role: High-accuracy front-end ADC interfacing to strain-gauge or RTD sensors; communicates via I²C to host MCU with minimal GPIO usage.

Use Value: Ratiometric operation rejects supply variation inherent in loop-powered designs; 4 µV_P-P noise ensures stable 16-bit readings despite EMI in industrial environments.

Smart Transmitters

Temperature Measurement Systems

Use Scenario: Wireless gas detector or corrosion monitor transmitting calibrated sensor data over BLE or LoRaWAN.

IC Role / Device Role / Timing Role: Low-power ADC acquiring calibrated analog sensor data; operates in single-conversion mode to minimize active time and average current.

Use Value: 90 µA active current and auto power-down enable >5-year battery life; factory-set I²C address (0x48) avoids bus conflicts in multi-sensor nodes.

Use Scenario: Precision oven controller or medical thermometer requiring <0.1°C accuracy from thermistor or RTD.

IC Role / Device Role / Timing Role: Differential ADC with PGA = 4 or 8 amplifying small thermistor voltage changes; uses internal clock and no external components.

Use Value: Continuous self-calibration maintains ±2.5 mV offset error over temperature; INL ≤ ±0.0125% FSR ensures linear response across full measurement range.

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
ADS1115IRUGR	4-channel, 16-bit, programmable comparator, 860 SPS max, larger X2QFN-10 package	Supports multiplexed sensor arrays; higher speed but higher power (150 µA active)	Choose ADS1115IRUGR when multiple differential inputs or faster sampling (>128 SPS) are required; not pin-compatible.
MCP3421A0T-E/CH	18-bit, 15 SPS max, no PGA, fixed 2.048 V reference, SOT23-6 package	Higher resolution but lower speed and no gain flexibility; requires external reference decoupling	Choose MCP3421A0T-E/CH for ultra-low-noise DC measurements where PGA is unnecessary and 18-bit static accuracy is prioritized.

Compared with ADS1115IRUGR and MCP3421A0T-E/CH, the ADS1100A0IDBVRG4 uniquely balances ultra-small footprint, integrated PGA, continuous self-calibration, and guaranteed 16-bit no-missing-codes performance - making it optimal for single-sensor, space- and power-constrained designs where simplicity and long-term stability are critical.

Availability

ADS1100A0IDBVRG4 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitters requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.

Supply support for ADS1100A0IDBVRG4 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, embedded processing, and digital signal technologies, with decades of expertise in precision data acquisition and low-power design.

The ADS1100 product line delivers compact, self-calibrating delta-sigma ADCs optimized for high-resolution sensor interfacing in battery-powered and space-constrained industrial and portable systems.

FAQ

What is the I²C address of the ADS1100A0IDBVRG4?

The ADS1100A0IDBVRG4 has a factory-programmed 7-bit I²C address of 1001000 (0x48). This is fixed and cannot be changed. It is one of eight variants (ADS1100A0 through ADS1100A7), each with a unique address determined by the AD0–AD2 pins during manufacturing. The "A0" suffix and "AD0" top-marking confirm this specific address.

Does the ADS1100A0IDBVRG4 require an external voltage reference?

No, the ADS1100A0IDBVRG4 does not require an external voltage reference. It operates ratiometrically using the V_DD supply voltage as its reference. This eliminates the need for a precision external reference and inherently rejects supply ripple, simplifying design and reducing BOM cost - a core feature confirmed in the SBAS239B datasheet.

What is the maximum achievable resolution and under what conditions?

The ADS1100A0IDBVRG4 achieves true 16-bit resolution with no missing codes at the 8 SPS data rate setting (DR = 11). At higher rates - 16 SPS (15-bit), 32 SPS (14-bit), and 128 SPS (12-bit) - resolution decreases as specified in Table I of the SBAS239B datasheet. Resolution is independent of PGA setting but affects full-scale input range.

How does the self-calibration function in the ADS1100A0IDBVRG4?

The ADS1100A0IDBVRG4 performs continuous, automatic self-calibration of offset and gain errors without user intervention or external commands. The circuitry runs in the background during normal operation and cannot be disabled. All published electrical specifications - including ±0.0125% FSR INL and ±2.5 mV offset error - reflect performance *after* calibration, as explicitly stated in the datasheet's Electrical Characteristics section.

Can the ADS1100A0IDBVRG4 measure bipolar input signals?

Yes, the ADS1100A0IDBVRG4 accepts bipolar *differential* input signals (VIN+ − VIN−), meaning it can resolve both positive and negative voltage differences. However, neither VIN+ nor VIN− may go below GND or above V_DD + 0.2 V. So while the *difference* can be negative, both input pins must remain within the absolute voltage limits relative to GND - a key constraint verified in the Absolute Maximum Ratings table.

ADS1100A0IDBVRG4 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):: 128

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:: Supply

Voltage - Supply, Analog:: 2.7V ~ 5.5V

Voltage - Supply, Digital:: 2.7V ~ 5.5V

Features:: PGA, Selectable Address

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: SOT-23-6

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADS1100A0IDBVRG4 FAQ

1.How can I place an order for ADS1100A0IDBVRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADS1100A0IDBVRG4 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 ADS1100A0IDBVRG4 reliable?

The price and inventory of ADS1100A0IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1100A0IDBVRG4 is usually 5 days.

3.What payment methods are accepted for ADS1100A0IDBVRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1100A0IDBVRG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADS1100A0IDBVRG4?

ADS1100A0IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADS1100A0IDBVRG4 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 ADS1100A0IDBVRG4?

For technical support, including ADS1100A0IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1100A0IDBVRG4 requirements.

6.How does Aetrix verify that ADS1100A0IDBVRG4 is sourced from the original manufacturer or authorized distributors?

All ADS1100A0IDBVRG4 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 ADS1100A0IDBVRG4 meets industry standards.

7.What is the process for return or replacement of ADS1100A0IDBVRG4?

All ADS1100A0IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1100A0IDBVRG4, 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 ADS1100A0IDBVRG4 part is unused and in its original packaging.

Return procedure for ADS1100A0IDBVRG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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