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Texas Instruments ADS1100A5IDBVT
- Part No.:
- ADS1100A5IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1100A5IDBVT.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:233
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Product details
Overview
ADS1100A5IDBVT 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 voltage as reference and supports single- or continuous-conversion modes for low-power portable instrumentation.
For engineers reviewing the ADS1100A5IDBVT datasheet, ADS1100A5IDBVT pinout, ADS1100A5IDBVT application, or ADS1100A5IDBVT equivalent, key selection criteria include its guaranteed 16-bit no-missing-codes performance at 8SPS, ±0.0125% FSR INL, 4µVP-P noise, 90µA active current, and factory-programmed I²C address 1001101 (AD5) enabling multi-device bus deployment.
Technical Context
The ADS1100A5IDBVT implements a fully differential delta-sigma modulator with integrated digital filter and internal system clock (~275 kHz), eliminating external timing components. Its ratiometric architecture ties full-scale range directly to VDD/PGA, making it insensitive to supply drift but requiring stable reference sourcing from the power rail.
Conversion control is managed via an 8-bit configuration register accessible over I²C, supporting dynamic reconfiguration of data rate (DR bits), PGA gain (PGA0/PGA1), and operating mode (single vs. continuous). The ST/BSY bit provides real-time conversion status feedback without polling overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | Up to 16 bits with no missing codes at 8SPS - guarantees monotonicity and full code coverage for precision measurement systems. |
| Data Rate | Selectable 8/16/32/128 SPS - trade-off between noise floor (lower rate = higher resolution) and sampling responsiveness. |
| INL | ±0.0125% of FSR max - ensures accurate end-point linearity critical for calibrated sensor interfaces. |
| Input Noise | 4 µVP-P - enables sub-100 µV signal resolution with PGA=8, suitable for thermistor and bridge sensor front-ends. |
| Supply Current | 90 µA active, 0.05–2 µA power-down - extends battery life in portable instrumentation and smart transmitters. |
| I²C Address | Fixed 7-bit address 1001101 (0x4D) - allows coexistence with up to seven other ADS1100 variants on same bus without address conflict. |
| Operating Temp | –40°C to +85°C - validated for industrial process control and factory automation environments. |
Pinout & Package
SOT23-6 package (DBV), 2.9 mm × 1.6 mm × 1.15 mm body, gull-wing leads, moisture sensitivity level 1. Pin 1 marked by dot or beveled edge; marking "AD5" confirms I²C address 1001101.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Differential analog input positive | Non-inverting input node; accepts voltage up to VDD + 0.2 V; requires source impedance ≤ 2.4 MΩ/PGA for accuracy. |
| VIN– | Differential analog input negative | Inverting input node; common-mode range GND – 0.2 V to VDD + 0.2 V; rejects common-mode noise when used differentially. |
| GND | Analog/digital ground reference | Single ground connection for all internal circuitry; must be low-impedance and separated from noisy digital returns. |
| SCL | I²C clock input | Asynchronous master-generated clock; supports Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes. |
| VDD | Power supply input | 2.7–5.5 V single supply; serves as ADC reference - output code scales linearly with VDD variation. |
| SDA | I²C bidirectional data line | Open-drain interface requiring external pull-up; carries both address and data bytes in 8-bit frames with ACK/NACK protocol. |
Key Features
| Feature | Design Value |
|---|---|
| Continuous self-calibration | Eliminates manual offset/gain trimming; calibration runs automatically during idle cycles and is included in all published INL/offset specs. |
| Programmable gain amplifier | Gains of 1, 2, 4, or 8 selected via configuration register - extends effective input range from ±VDD down to ±VDD/8 for microvolt-level signals. |
| Ratiometric operation | Full-scale range = 2 × VDD / PGA - removes need for external voltage reference and simplifies BOM for cost-sensitive designs. |
| Low-noise delta-sigma core | 4 µVP-P noise at 8SPS with PGA=8 - achieves <1 LSB noise floor for 16-bit resolution without external filtering. |
| Single-cycle conversion | Completes one full conversion per command in continuous mode - enables deterministic timing for synchronized sensor acquisition. |
Applications
| Portable Instrumentation | Industrial Process Control |
|---|---|
Use Scenario: Handheld multimeter measuring thermocouple or RTD outputs in field service. IC Role / Device Role / Timing Role: Precision front-end ADC acquiring differential sensor voltage with onboard PGA gain scaling and I²C streaming to MCU. Use Value: 16-bit resolution at 8SPS and 4 µVP-P noise enable 0.1°C temperature resolution without external amplification or reference ICs. | Use Scenario: 4–20 mA loop-powered smart transmitter monitoring pressure or flow in PLC-connected systems. IC Role / Device Role / Timing Role: Low-power, self-calibrating ADC interfacing bridge sensors while sharing I²C bus with diagnostics MCU. Use Value: 90 µA active current and automatic power-down after single conversion reduce loop power budget impact; ratiometric design eliminates reference drift errors. |
| Smart Transmitters | Temperature Measurement Systems |
Use Scenario: Wireless sensor node transmitting calibrated analog readings over LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Primary A/D converter with factory-set I²C address (AD5) enabling multi-node bus addressing in compact enclosure. Use Value: Fixed 1001101 address avoids software-configurable address conflicts; SOT23-6 footprint minimizes PCB area in space-constrained nodes. | Use Scenario: Embedded HVAC controller reading NTC thermistors across multiple zones. IC Role / Device Role / Timing Role: Differential ADC rejecting common-mode noise from shared power rails and long sensor traces. Use Value: 8 MΩ common-mode input impedance and 94 dB CMRR at PGA=8 suppress EMI-induced errors in electrically noisy building environments. |
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, 16-bit, programmable comparator, 860SPS max, larger MSOP-10 package | Supports multiplexed multi-sensor acquisition; lacks ratiometric simplicity and ultra-low 90 µA current | Choose ADS1115IDGSR when channel count >1 or comparator functionality required; ADS1100A5IDBVT preferred for minimal size/power single-channel use. |
| MCP3421A0T-E/CH | 18-bit, 15SPS max, PGA=1/2/4/8, I²C address 1001000, 145 µA active current, SOT23-6 | Higher resolution but slower rate and higher current; no self-calibration - requires external calibration routine | Choose MCP3421A0T-E/CH only if 18-bit resolution is mandatory and 15SPS suffices; ADS1100A5IDBVT offers better speed/power/autonomy trade-off. |
Compared with ADS1115IDGSR and MCP3421A0T-E/CH, the ADS1100A5IDBVT delivers optimal balance of 16-bit integrity, ultra-low quiescent current, autonomous calibration, and minimal SOT23-6 footprint - making it uniquely suited for battery-powered, space-constrained, single-sensor measurement nodes where firmware simplicity and long-term stability are critical.
Availability
ADS1100A5IDBVT is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and smart transmitters requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for ADS1100A5IDBVT 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 signal chain solutions.
The ADS1100 product line was designed specifically for ultra-compact, low-power, high-resolution sensor interfacing in portable and industrial measurement systems - prioritizing integration, autonomy, and ease of use over configurability.
FAQ
What is the I²C address of the ADS1100A5IDBVT?
The ADS1100A5IDBVT has a fixed 7-bit I²C slave address of 1001101 (0x4D), corresponding to the AD5 variant per TI's ordering table. This address is factory-programmed and unchangeable; it enables direct bus connection alongside up to seven other ADS1100 variants without address collision or software configuration.
Does the ADS1100A5IDBVT require an external voltage reference?
No, the ADS1100A5IDBVT does not require an external voltage reference. It operates ratiometrically using VDD as its reference - full-scale range equals 2 × VDD / PGA. This eliminates reference ICs and associated cost, board space, and drift errors, but requires a stable, low-noise VDD supply for optimal accuracy.
How does the self-calibration function in the ADS1100A5IDBVT work?
The ADS1100A5IDBVT performs continuous, automatic self-calibration of offset and gain errors during idle periods - no user intervention, commands, or external components needed. Calibration is always active and cannot be disabled; all published INL, offset, and gain error specifications include its effect, ensuring guaranteed performance without system-level trimming.
What is the maximum achievable resolution and data rate combination for the ADS1100A5IDBVT?
The ADS1100A5IDBVT achieves true 16-bit resolution with no missing codes only at the 8SPS data rate. At higher rates - 16SPS (15-bit), 32SPS (14-bit), and 128SPS (12-bit) - resolution decreases per the delta-sigma filter's decimation ratio, as confirmed in Table I of the SBAS239B datasheet.
Can the ADS1100A5IDBVT measure bipolar input signals?
Yes, the ADS1100A5IDBVT accepts bipolar differential inputs (VIN+ – VIN–), but neither input may go below GND – 0.2 V or above VDD + 0.2 V. For example, with VDD = 3.3 V and PGA = 1, valid differential input range is ±3.3 V, but absolute VIN+ and VIN– must stay within –0.2 V to +3.5 V - requiring proper level-shifting for true bipolar sources.
ADS1100A5IDBVT 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):
- 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:
- -
ADS1100A5IDBVT FAQ
1.How can I place an order for ADS1100A5IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1100A5IDBVT 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 ADS1100A5IDBVT reliable?
The price and inventory of ADS1100A5IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1100A5IDBVT is usually 5 days.
3.What payment methods are accepted for ADS1100A5IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1100A5IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1100A5IDBVT?
ADS1100A5IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1100A5IDBVT 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 ADS1100A5IDBVT?
For technical support, including ADS1100A5IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1100A5IDBVT requirements.
6.How does Aetrix verify that ADS1100A5IDBVT is sourced from the original manufacturer or authorized distributors?
All ADS1100A5IDBVT 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 ADS1100A5IDBVT meets industry standards.
7.What is the process for return or replacement of ADS1100A5IDBVT?
All ADS1100A5IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with ADS1100A5IDBVT, 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 ADS1100A5IDBVT part is unused and in its original packaging.
Return procedure for ADS1100A5IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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