Texas Instruments ADS1013BQDGSRQ1

Overview

ADS1013BQDGSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified, 12-bit delta-sigma analog-to-digital converter with internal reference and oscillator, supporting 3.3 kSPS maximum data rate, 2.0–5.5 V supply, and 150 μA continuous-conversion current. It performs single-ended or differential measurements on one analog input pair (AIN0/AIN1) in space-constrained vehicle display and sensor monitoring systems.

For engineers reviewing the ADS1013BQDGSRQ1 datasheet, ADS1013BQDGSRQ1 pinout, ADS1013BQDGSRQ1 application, or ADS1013BQDGSRQ1 equivalent, key selection criteria include its fixed ±2.048 V full-scale range, absence of PGA/comparator, I²C interface with four address options, and UQFN-10 packaging for thermal performance in automotive ambient (–40°C to +125°C).

Technical Context

The ADS1013BQDGSRQ1 implements a 1-MHz internal oscillator driving a 250-kHz modulator clock, enabling single-cycle settling at all 7 programmable data rates (128–3300 SPS). Its delta-sigma architecture uses switched-capacitor sampling with fixed gain and no PGA, delivering noise-free 12-bit resolution without missing codes across temperature.

It operates exclusively in I²C mode with ADDR-pin selectable addresses, lacks multiplexer or comparator logic, and relies solely on its internal low-drift voltage reference-no external reference or clock is supported. Analog input compliance follows GND – 0.3 V to VDD + 0.3 V limits per pin.

Key Specifications

Pinout & Package

ADS1013BQDGSRQ1 is packaged in a 10-pin UQFN (NKS) package measuring 2 mm × 1.6 mm with wettable flanks, optimized for automated optical inspection and thermal dissipation (R_θJA = 126.3°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit automotive ADC applications.

Compared with ADS1013-Q1 (DGS) and ADS1113BQDGSRQ1, ADS1013BQDGSRQ1 offers optimal thermal performance in compact UQFN packaging and best-in-class speed/resolution balance for real-time automotive sensor digitization - making it preferred for display-integrated and space-constrained modules.

Availability

ADS1013BQDGSRQ1 is available at Aetrix Electronics and suitable for automotive center displays, instrument clusters, and camera module monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADS1013BQDGSRQ1 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 signal chain solutions.

The ADS101x-Q1 product line was designed specifically for cost-sensitive, space-constrained automotive sensor interfaces requiring integrated timing and reference - eliminating external components while meeting AEC-Q100 reliability standards.

FAQ

What is the full-scale input range of ADS1013BQDGSRQ1?

The ADS1013BQDGSRQ1 has a fixed full-scale range of ±2.048 V - not programmable. This sets the LSB size to exactly 1 mV (2.048 V / 4096 codes). Unlike ADS1014-Q1 or ADS1015-Q1, it contains no PGA, so input scaling cannot be adjusted. External signal conditioning must ensure analog inputs stay within GND – 0.3 V to VDD + 0.3 V.

Does ADS1013BQDGSRQ1 support differential or single-ended input modes?

Yes, ADS1013BQDGSRQ1 supports both configurations. For differential mode, apply signals to AIN0 (positive) and AIN1 (negative). For single-ended mode, tie AIN1 to GND externally and apply signal to AIN0. The device does not include an internal multiplexer, so only one input pair is available - no AIN2 or AIN3 connectivity.

Is the ALERT/RDY pin functional on ADS1013BQDGSRQ1?

No, the ALERT/RDY pin is not functional on ADS1013BQDGSRQ1. That pin is reserved and unused because this variant lacks the digital comparator present in ADS1014-Q1 and ADS1015-Q1. It must be left unconnected or pulled high via external resistor if board layout shares footprint with other family members.

What I²C addresses can ADS1013BQDGSRQ1 be configured to use?

ADS1013BQDGSRQ1 supports four I²C addresses: 0x48, 0x49, 0x4A, and 0x4B. These are selected by the logic state of the ADDR pin: grounded (0x48), floating (0x49), tied to VDD (0x4A), or tied to SDA (0x4B). This allows up to four ADS1013BQDGSRQ1 devices on the same I²C bus without address conflict.

How does the internal oscillator affect timing accuracy in ADS1013BQDGSRQ1?

The ADS1013BQDGSRQ1 uses a 1-MHz internal oscillator that drives the delta-sigma modulator. Oscillator drift with temperature causes proportional variation in data rate (±10% over temperature per datasheet). For applications requiring tight timing tolerance, system firmware must calibrate against a stable external clock or accept the specified data rate tolerance - no external clock input is supported.