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8-Channel Single ADC Delta-Sigma 2ksps 16-bit Serial Automotive 28-Pin TSSOP T/R

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ADS1148QPWRQ1 General Description

The ADS1148-Q1 is a highly-integrated, precision, 16-bit analog-to-digital converter (ADC) that includes many integrated features to reduce system cost and component count for sensor measurement applications. The device features a low-noise, programmable gain amplifier (PGA), a precision delta-sigma (ΔΣ) ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1148-Q1 integrates a low-drift voltage reference, and two matched programmable excitation current sources (IDACs).

The device offers a fully flexible multiplexer that allows both positive and negative inputs to be selected independently. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and eight general-purpose digital I/Os (GPIOs). The PGA provides selectable gains up to 128 V/V. These features provide a complete front-end solution for temperature sensor measurement applications, including thermocouples, thermistors, and resistance temperature detectors (RTDs), and other small-signal measurements. The digital filter settles in a single cycle to support fast channel cycling when using the input multiplexer and provides data rates up to 2 kSPS. For data rates of 20 SPS or less, both the 50-Hz and 60-Hz interference are rejected by the filter.

Texas Instruments, Inc Inventory

Key Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Temperature Grade 1: –40°C to +125°C
    • HBM ESD Classification 2
    • CDM ESD Classification C5
  • Programmable Gain: 1 V/V to 128 V/V
  • Programmable Data Rates: 5 SPS to 2 kSPS
  • Single-Cycle Settling for All Data Rates
  • Analog Multiplexer With 8 Independently Selectable Inputs
  • Dual-Matched Programmable Excitation Current Sources: 50 µA to 1.5 mA
  • Internal 2.048-V Voltage Reference
  • Internal 4.096-MHz Oscillator
  • Internal Temperature Sensor
  • Open Sensor Detection
  • Power-Supply and External Reference Monitoring
  • Self and System Calibration
  • 8 General-Purpose I/Os
  • SPI-Compatible Serial Interface
  • Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
  • Digital Supply: 2.7 V to 5.25 V
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Resolution (Bits) 16 Sample rate (max) (ksps) 2
Number of input channels 8 Interface type SPI
Architecture Delta-Sigma Input type Differential, Single-ended
Rating Automotive Reference mode External, Internal
Input voltage range (max) (V) 2.125, 4.25 Input voltage range (min) (V) -2.125, 0
Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125
Power consumption (typ) (mW) 2.3 Analog supply (min) (V) 2.7
Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7
Digital supply (max) (V) 5.25 feature-resolution 16bit
feature-maximum-single-supply-voltage-v feature-minimum-dual-supply-voltage-v
feature-maximum-dual-supply-voltage-v feature-power-supply-type
feature-packaging Tape and Reel feature-minimum-single-supply-voltage-v
feature-rad-hard feature-pin-count 28
feature-supplier-package TSSOP feature-standard-package-name1 SOP
feature-cecc-qualified No feature-esd-protection
feature-escc-qualified feature-military No
feature-aec-qualified Yes feature-aec-qualified-number AEC-Q100
feature-auto-motive Yes feature-p-pap Yes
feature-eccn-code EAR99 feature-svhc Yes
feature-svhc-exceeds-threshold No


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Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
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Buying Guide

  • What is the lifespan of ADS1148QPWRQ1?

    The lifespan of ADS1148QPWRQ1 depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of ADS1148QPWRQ1?

    You can find it with PDF Datasheet for ADS1148QPWRQ1 on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

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