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Texas Instruments ADS1000A0IDBVTG4
- Part No.:
- ADS1000A0IDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADS1000A0IDBVTG4.pdf
- Description:
- IC ADC 12BIT SIGMA-DELTA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,471
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Product details
Overview
ADS1000A0IDBVTG4 from Texas Instruments is a 12-bit, I²C-compatible analog-to-digital converter with differential inputs, programmable gain amplifier (PGA = 1/2/4/8), 128 SPS data rate, and ratiometric operation using VDD as reference. It operates from 2.7V to 5.5V and draws only 90 µA active current, targeting space- and power-constrained voltage monitoring and sensor readout.
For engineers reviewing the ADS1000A0IDBVTG4 datasheet, ADS1000A0IDBVTG4 pinout, ADS1000A0IDBVTG4 application, or ADS1000A0IDBVTG4 equivalent, key selection considerations include its SOT-23-6 package, fixed I²C address 0x48 (1001000b), single-cycle conversion timing, ±1 LSB INL, and PGA-enabled sub-millivolt signal resolution in battery-powered instrumentation.
Technical Context
The ADS1000A0IDBVTG4 implements a switched-capacitor SAR ADC core with an integrated clock generator (no external clock required) and fully differential input stage. Its PGA provides selectable gain before digitization, enabling high-resolution measurement of low-amplitude signals without external amplification.
It operates exclusively as an I²C slave device with open-drain SDA/SCL interface, supports Standard/Fast/High-Speed I²C modes (up to 3.4 MHz), and features automatic power-down after single conversion. The device uses VDD as both supply and reference, yielding ratiometric accuracy insensitive to supply drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - delivers full-scale digital output range of –2048 to +2047 in two's complement format. |
| Data Rate | 128 SPS (typical) - enables stable DC or slow-varying signal acquisition with single-cycle latency. |
| PGA Gain | Selectable 1, 2, 4, or 8 - extends effective input range down to ±680 mV (at VDD = 5.5 V, gain = 8), supporting microvolt-level signal resolution. |
| INL | ±1 LSB max - ensures monotonicity and linearity critical for precision measurement without calibration. |
| Supply Current | 90 µA active / 0.05 µA power-down - enables multi-year battery life in portable sensing nodes. |
| I²C Address | Fixed 7-bit address 0x48 (1001000b) - allows coexistence with ADS1000A1 (0x49) on same bus without address conflict. |
| Operating Temp | –40°C to +125°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
SOT-23-6 package with 1.6 mm × 2.9 mm footprint and 0.95 mm height; pin 1 marked by dot or beveled edge per TI marking convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+ | Differential analog input positive | Accepts voltage from GND – 0.2 V to VDD + 0.2 V; used with VIN– for true differential measurement or grounded for single-ended mode. |
| VIN– | Differential analog input negative | Common-mode reference point; must remain within GND – 0.2 V to VDD + 0.2 V; grounding enables single-ended input configuration. |
| VDD | Power supply | 2.7 V to 5.5 V supply; also serves as ADC reference - enables ratiometric accuracy and eliminates need for external reference. |
| GND | Analog/digital ground | Single ground connection for all circuitry; requires low-impedance path to minimize noise coupling into sensitive analog inputs. |
| SDA | I²C serial data line | Open-drain bidirectional interface; requires external pull-up resistor (1 kΩ–10 kΩ); acknowledges address/data bytes per I²C protocol. |
| SCL | I²C serial clock line | Input-only clock line; driven by master; supports up to 3.4 MHz in High-Speed mode; no clock stretching capability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA with 4 gain settings | Eliminates external op-amp stages for low-level sensor signals (e.g., thermistors, bridge outputs), reducing BOM count and board area. |
| Ratiometric operation using VDD | Removes dependency on stable external reference; system accuracy tracks supply regulation, simplifying power architecture. |
| Single-cycle conversion with auto power-down | Reduces average current to <1 µA in polling-based systems - ideal for intermittent wake-up architectures in IoT endpoints. |
| Full I²C compatibility (Standard/Fast/High-Speed) | Enables direct interfacing with legacy microcontrollers (100 kHz), modern SoCs (400 kHz), and high-throughput hosts (3.4 MHz) without protocol translation. |
| Differential input with 2.4 MΩ/PGA input impedance | Minimizes loading error on high-impedance sources like RTDs and piezoresistive sensors while preserving common-mode rejection. |
Applications
| Battery Voltage Monitoring | Industrial Temperature Sensing |
|---|---|
Use Scenario: Real-time tracking of Li-ion cell voltage during charge/discharge cycles in portable medical devices. IC Role / Device Role / Timing Role: ADC front-end converting differential cell voltage to 12-bit digital value via I²C at 128 SPS for firmware-based state-of-charge estimation. Use Value: 90 µA active current extends battery runtime; PGA gain = 2 enables ±2.75 V full-scale range matching typical 3.0–4.2 V cell window. |
Use Scenario: Precision readout of 10 kΩ NTC thermistor in HVAC control panel across –25°C to +85°C ambient. IC Role / Device Role / Timing Role: Digitizing thermistor voltage divider output with PGA = 4 to resolve <0.1°C steps without external amplification. Use Value: ±1 LSB INL ensures <0.05% measurement linearity; ratiometric operation rejects 5% VDD ripple, improving thermal stability. |
| Consumer Electronics Power Management | Low-Side Current Monitoring |
Use Scenario: System-level voltage supervision in smart speaker power tree, detecting brown-out conditions on 3.3 V rail. IC Role / Device Role / Timing Role: Continuously sampling 3.3 V rail with gain = 1 and reporting via I²C to host MCU for fault logging and graceful shutdown. Use Value: SOT-23-6 footprint fits tight PCB layouts; 2.7–5.5 V operating range covers multiple rail voltages without level-shifting. |
Use Scenario: Measuring motor drive current via 50 mΩ shunt resistor in battery-powered power tool. IC Role / Device Role / Timing Role: Converting shunt voltage drop (0–50 mV) to digital code using PGA = 8, enabling 12-bit resolution over full current range. Use Value: Differential input rejects common-mode noise from PWM switching; 128 SPS sampling avoids aliasing from 20 kHz motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1100A0IDBVT | 16-bit resolution, same SOT-23-6 package and I²C address (0x48), but 128 SPS max and higher 250 µA supply current. | Higher resolution required for strain gauge or precision weight scale; less suitable for ultra-low-power battery use. | Select ADS1100A0IDBVT when 16-bit ENOB justifies 2.8× higher active current and identical layout compatibility is needed. |
| MCP3421A0T-E/CH | 18-bit delta-sigma ADC, SOT-23-6, I²C address 0x68, 15 SPS (18-bit) to 240 SPS (12-bit), 145 µA active current. | Superior noise performance for low-frequency sensor signals; lacks PGA but includes internal 2.048 V reference. | Choose MCP3421A0T-E/CH for ultra-low-noise DC measurements where oversampling >100× is acceptable and external reference is undesirable. |
Compared with ADS1000A0IDBVTG4, ADS1100A0IDBVT offers higher resolution at higher power cost and identical pinout, while MCP3421A0T-E/CH trades speed for noise floor and requires address reconfiguration - making ADS1000A0IDBVTG4 optimal for cost-sensitive, battery-powered 12-bit applications demanding minimal layout change and lowest quiescent current.
Availability
ADS1000A0IDBVTG4 is available at Aetrix Electronics and suitable for battery management, industrial process control, and consumer electronics requiring stable component supply with guaranteed long-term manufacturability.
Supply support for ADS1000A0IDBVTG4 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 low-power design.
The ADS1000A0IDBVTG4 belongs to TI's precision analog ADC portfolio, engineered specifically for compact, low-power sensor interface applications where integration, size, and supply efficiency outweigh raw resolution demands.
FAQ
What is the I²C address of the ADS1000A0IDBVTG4?
The ADS1000A0IDBVTG4 has a factory-programmed fixed 7-bit I²C address of 0x48 (binary 1001000). This distinguishes it from the ADS1000A1 variant (0x49) and enables dual-device operation on the same bus. The address is hardwired and not software-configurable; no external address pins exist on the SOT-23-6 package.
Does the ADS1000A0IDBVTG4 require an external voltage reference?
No, the ADS1000A0IDBVTG4 uses its VDD supply as the reference voltage, enabling ratiometric operation. This eliminates the need for an external reference IC or precision resistor divider, reducing component count and layout complexity while maintaining accuracy proportional to supply stability.
Can the ADS1000A0IDBVTG4 measure single-ended signals?
Yes - the ADS1000A0IDBVTG4 supports single-ended measurement by grounding VIN– and applying the signal to VIN+. Input range becomes 0 V to VDD + 0.2 V, with 1-bit resolution loss versus differential mode. For best accuracy, use PGA = 1 or 2 to avoid clipping near VDD.
What is the maximum I²C clock frequency supported by the ADS1000A0IDBVTG4?
The ADS1000A0IDBVTG4 supports Standard Mode (100 kHz), Fast Mode (400 kHz), and High-Speed Mode (up to 3.4 MHz). In High-Speed Mode, it requires the master to send the Hs master code (00001XXX) after START; the device automatically enables internal filters and responds at the higher rate until STOP.
How does the programmable gain amplifier (PGA) affect input voltage range?
The PGA gain setting directly scales the full-scale differential input voltage: FS = ±VDD / PGA. At VDD = 5.0 V and PGA = 8, the usable input range is ±0.625 V; at PGA = 1, it is ±5.0 V. This allows optimization for small-signal sensors without external amplification while preserving 12-bit resolution across all gains.
ADS1000A0IDBVTG4 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:
- 12
- 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 ~ 125°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1000A0IDBVTG4 FAQ
1.How can I place an order for ADS1000A0IDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1000A0IDBVTG4 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 ADS1000A0IDBVTG4 reliable?
The price and inventory of ADS1000A0IDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1000A0IDBVTG4 is usually 5 days.
3.What payment methods are accepted for ADS1000A0IDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1000A0IDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1000A0IDBVTG4?
ADS1000A0IDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1000A0IDBVTG4 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 ADS1000A0IDBVTG4?
For technical support, including ADS1000A0IDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1000A0IDBVTG4 requirements.
6.How does Aetrix verify that ADS1000A0IDBVTG4 is sourced from the original manufacturer or authorized distributors?
All ADS1000A0IDBVTG4 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 ADS1000A0IDBVTG4 meets industry standards.
7.What is the process for return or replacement of ADS1000A0IDBVTG4?
All ADS1000A0IDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1000A0IDBVTG4, 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 ADS1000A0IDBVTG4 part is unused and in its original packaging.
Return procedure for ADS1000A0IDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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