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Texas Instruments ADS1015BQDGSRQ1
- Part No.:
- ADS1015BQDGSRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS1015BQDGSRQ1.pdf
- Description:
- IC ADC 12BIT SIGMA-DELTA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,091
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Product details
Overview
ADS1015BQDGSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified, 12-bit delta-sigma analog-to-digital converter (ADC) with integrated PGA, voltage reference, oscillator, and I²C interface. It supports up to 3.3 kSPS, 4 single-ended or 2 differential inputs, ±0.256 V to ±6.144 V programmable FSR, and operates from 2.0 V to 5.5 V supply. It is used in automotive cluster displays for precise battery voltage and sensor signal digitization.
For engineers reviewing the ADS1015BQDGSRQ1 datasheet, ADS1015BQDGSRQ1 pinout, ADS1015BQDGSRQ1 application, or ADS1015BQDGSRQ1 equivalent, key selection criteria include automotive-grade temperature range (–40°C to +125°C), I²C address configurability (4 options), ALERT/RDY comparator output behavior, multiplexer input routing, and PGA gain-dependent input impedance.
Technical Context
The ADS1015BQDGSRQ1 implements a 1-MHz internal oscillator driving a 250-kHz modulator clock, enabling single-cycle settling across all 7 programmable data rates (128–3300 SPS). Its delta-sigma architecture uses switched-capacitor sampling with configurable full-scale ranges determined by the 3-bit PGA setting.
It integrates a 4-channel analog multiplexer supporting both differential (AIN0–AIN1, AIN0–AIN3, AIN1–AIN3, AIN2–AIN3) and single-ended (AIN0–GND, AIN1–GND, AIN2–GND, AIN3–GND) configurations. The digital comparator operates in traditional or window mode, asserting the open-drain ALERT/RDY pin based on Hi_thresh/Lo_thresh register thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit noise-free resolution; guarantees no missing codes over full operating temperature range. |
| Max Sample Rate | 3.3 kSPS - enables real-time monitoring of fast-changing automotive signals like throttle position or brake pressure. |
| Input Configuration | 4 single-ended or 2 differential inputs - supports flexible sensor interfacing without external MUX hardware. |
| PGA Full-Scale Range | ±0.256 V to ±6.144 V - allows accurate measurement of both millivolt-level thermocouple outputs and volt-level battery sensing. |
| Supply Voltage Range | 2.0 V to 5.5 V - compatible with 3.3 V and 5 V automotive subsystems and simplifies power domain design. |
| Quiescent Current | 150 µA in continuous-conversion mode - reduces system power budget in always-on vehicle modules. |
| Operating Temperature | –40°C to +125°C (Grade 1) - meets under-hood and instrument panel thermal requirements per AEC-Q100. |
Pinout & Package
ADS1015BQDGSRQ1 is packaged in a 10-pin UQFN (NKS) package measuring 2.0 mm × 1.6 mm with 0.5-mm pitch, optimized for space-constrained automotive PCBs. Thermal resistance RθJA is 126.3°C/W, supporting operation at full ambient temperature without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | I²C address select input | Configures one of four I²C target addresses (0x48–0x4B); pulled high/low or left floating to set device address. |
| ALERT/RDY | Open-drain digital output | Asserts low when conversion result exceeds Hi_thresh or falls below Lo_thresh; also indicates conversion completion in RDY mode. |
| GND | Analog ground reference | Primary return path for analog inputs and internal reference; must be connected to low-impedance system ground plane. |
| AIN0–AIN3 | Analog input terminals | Support configurable SE/DE acquisition via internal MUX; absolute input voltage limited to GND–0.3 V to VDD+0.3 V. |
| VDD | Power supply input | Supplies core logic, ADC, PGA, and reference; requires 0.1-µF ceramic decoupling capacitor placed adjacent to pin. |
| SCL | I²C serial clock input | Accepts standard/fast/high-speed I²C clocks (up to 3.4 MHz); requires external pull-up to VDD. |
| SDA | I²C bidirectional data line | Transfers configuration registers and conversion results; requires external pull-up to VDD. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40°C to +125°C ambient, including HTOL, TC, and ESD stress testing per AEC standards. |
| Integrated programmable gain amplifier (PGA) | 6 selectable gains (1–16) enabling ±0.256 V to ±6.144 V FSR - eliminates need for external signal conditioning amplifiers. |
| Digital comparator with ALERT/RDY output | Hardware-based over/under-voltage detection without MCU intervention - reduces host processor load and latency in safety-critical monitoring. |
| Single-cycle settling time | Conversion completes in exactly 1/data rate period (e.g., 303 µs at 3.3 kSPS) - ensures deterministic timing for closed-loop control feedback. |
| I²C interface with 4 address options | Enables up to four ADS1015BQDGSRQ1 devices on same bus without address conflict - simplifies multi-sensor systems in clusters or ADAS ECUs. |
Applications
| Automotive Instrument Cluster | Body Control Module (BCM) Voltage Monitoring |
|---|---|
Use Scenario: Real-time digitization of 12 V battery voltage, alternator output, and HVAC sensor signals within driver display unit. IC Role / Device Role / Timing Role: Primary ADC for analog sensor aggregation; performs synchronized conversions at 1 kSPS with alert-triggered wake-up on voltage deviation. Use Value: Enables accurate state-of-charge estimation and fault detection using internal reference and PGA, eliminating external precision references and op-amps. |
Use Scenario: Continuous monitoring of LIN bus supply rail and door lock actuator current in BCM subassembly. IC Role / Device Role / Timing Role: Low-power sensor interface ADC; operates in continuous mode at 250 SPS with ALERT/RDY signaling overvoltage events to microcontroller. Use Value: Reduces total BOM count by integrating reference, oscillator, and comparator - critical for cost-sensitive, high-volume automotive modules. |
| Camera Module Power Supervision | Center Stack Touch Panel Calibration |
Use Scenario: Monitoring bias voltage and temperature sensor output in automotive rear-view camera module without onboard processing. IC Role / Device Role / Timing Role: Standalone ADC providing I²C-accessible telemetry; uses single-ended AIN2/AIN3 inputs with ±1.024 V FSR for 10-bit-equivalent resolution. Use Value: Delivers AEC-Q100-compliant performance in compact UQFN package - fits tight space constraints behind camera housing. |
Use Scenario: Compensating touch controller offset drift by digitizing reference voltage and panel edge sensor outputs in infotainment center stack. IC Role / Device Role / Timing Role: Precision ADC with ±2.048 V FSR and <0.5 LSB INL; acquires calibration points during startup sequence using differential AIN0–AIN1 mode. Use Value: Internal low-drift voltage reference ensures stable calibration across temperature - avoids recalibration due to reference drift in consumer-grade alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit automotive ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1015IRUGRQ1 | Same functionality and specs, but in 10-pin VSSOP (DGS) package (3 mm × 4.9 mm); higher RθJA = 170.9°C/W. | Better suited for prototyping or legacy layouts requiring SOIC-compatible footprint; less optimal for dense automotive PCBs. | Select ADS1015IRUGRQ1 only if board layout accommodates larger VSSOP or requires hand-soldering feasibility. |
| ADS1115BQDGSRQ1 | 16-bit resolution, lower max data rate (860 SPS), same PGA, comparator, and I²C interface; identical UQFN-10 package and AEC-Q100 Grade 1 rating. | Preferred where higher DC accuracy (e.g., thermistor linearization) outweighs speed requirement; trades 3.3 kSPS for 4× resolution. | Choose ADS1115BQDGSRQ1 when system demands <100 ppm measurement accuracy over temperature, not high-speed sampling. |
Compared with ADS1015IRUGRQ1, the ADS1015BQDGSRQ1 offers superior thermal performance and smaller footprint for production automotive designs; compared with ADS1115BQDGSRQ1, it delivers 3.8× higher sample rate at the cost of 4-bit resolution - making it optimal for dynamic sensor monitoring where timing fidelity matters more than ultra-fine quantization.
Availability
ADS1015BQDGSRQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, body control modules, and camera module power supervision requiring stable component supply across extended product lifecycles.
Supply support for ADS1015BQDGSRQ1 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 deep expertise in automotive-grade IC design and functional safety development.
The ADS101x-Q1 product line was designed specifically for AEC-Q100-compliant automotive sensor signal acquisition - emphasizing low power, integrated peripherals (PGA, reference, oscillator), and robust I²C communication in minimal footprints.
FAQ
What is the maximum data rate supported by ADS1015BQDGSRQ1?
The ADS1015BQDGSRQ1 supports a maximum data rate of 3.3 kSPS (3300 samples per second), achieved when the DR[2:0] bits in the Config register are set to 111. This rate is enabled by its internal 1-MHz oscillator and delta-sigma architecture, and applies across all full-scale ranges and input configurations. At this rate, conversion time is fixed at 303 µs per sample.
Does ADS1015BQDGSRQ1 require an external voltage reference?
No, ADS1015BQDGSRQ1 does not require or support an external voltage reference. It integrates a proprietary low-drift internal reference whose accuracy and temperature stability are fully characterized in the gain error and gain drift specifications. Using the internal reference is mandatory - no external reference pin or bypass option exists.
How many I²C addresses can ADS1015BQDGSRQ1 be configured to use?
ADS1015BQDGSRQ1 supports four unique I²C target addresses: 0x48, 0x49, 0x4A, and 0x4B. These are selected by the logic level applied to the ADDR pin (GND, VDD, SDA, or SCL). This allows up to four ADS1015BQDGSRQ1 devices to share the same I²C bus without address collision in multi-sensor automotive systems.
What input configurations does ADS1015BQDGSRQ1 support?
ADS1015BQDGSRQ1 supports four single-ended inputs (AIN0–GND, AIN1–GND, AIN2–GND, AIN3–GND) or two differential inputs (AIN0–AIN1, AIN2–AIN3) via its internal multiplexer. It also supports pseudo-differential configurations such as AIN0–AIN3 and AIN1–AIN3. All configurations are software-selectable using the MUX[2:0] bits in the Config register.
Is ADS1015BQDGSRQ1 pin-compatible with ADS1015IRUGRQ1?
No, ADS1015BQDGSRQ1 (UQFN-10, NKS) and ADS1015IRUGRQ1 (VSSOP-10, DGS) are not pin-compatible. Although both have 10 pins with identical signal names and functions, their physical pinouts differ: ADS1015BQDGSRQ1 places AIN2 and AIN3 on pins 6 and 7, while ADS1015IRUGRQ1 places them on pins 7 and 6. PCB layout and footprint must be redesigned for package interchange.
ADS1015BQDGSRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3.3k
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2V ~ 5.5V
- Voltage - Supply, Digital:
- 2V ~ 5.5V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 124°C
- Supplier Device Package:
- 10-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
ADS1015BQDGSRQ1 FAQ
1.How can I place an order for ADS1015BQDGSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1015BQDGSRQ1 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 ADS1015BQDGSRQ1 reliable?
The price and inventory of ADS1015BQDGSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1015BQDGSRQ1 is usually 5 days.
3.What payment methods are accepted for ADS1015BQDGSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1015BQDGSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1015BQDGSRQ1?
ADS1015BQDGSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1015BQDGSRQ1 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 ADS1015BQDGSRQ1?
For technical support, including ADS1015BQDGSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1015BQDGSRQ1 requirements.
6.How does Aetrix verify that ADS1015BQDGSRQ1 is sourced from the original manufacturer or authorized distributors?
All ADS1015BQDGSRQ1 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 ADS1015BQDGSRQ1 meets industry standards.
7.What is the process for return or replacement of ADS1015BQDGSRQ1?
All ADS1015BQDGSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with ADS1015BQDGSRQ1, 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 ADS1015BQDGSRQ1 part is unused and in its original packaging.
Return procedure for ADS1015BQDGSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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