ADS1148IRHBT

Semiconductors - ICs

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> Analog-to-Digital Converters - ADC

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Details for Texas Instruments

ADS1148IRHBT

16-Bit 2kSPS 8-Ch ADC With PGA, Reference, and IDAC for Precision Sensor Measurement
Buy Directly from Texas Instruments (3750 in Stock)
$4.8300 per unit
Series Information for ADS1148IRHBT - Texas Instruments

Features

  • feature
    4 or 8 General-Purpose I/Os (ADS1147 and ADS1148)
  • feature
    Analog Multiplexer With 8 (ADS1148) and 4 (ADS1147) Independently Selectable Inputs
  • feature
    Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (u00b12.5 V)
  • feature
    Digital Supply: 2.7 V to 5.25 V
  • feature
    Dual-Matched Programmable Excitation Current Sources
  • feature
    Internal Temperature Sensor
  • feature
    Low-Drift Internal 2.048-V Reference
  • feature
    Power Supply and VREF Monitoring (ADS1147 and ADS1148)
  • feature
    Programmable Data Rates Up to 2 kSPS
  • feature
    Programmable Gain: 1 V/V to 128 V/V
  • feature
    SPIu2122-Compatible Serial Interface
  • feature
    Self and System Calibration
  • feature
    Sensor Burnout Detection
  • feature
    Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS
  • feature
    Single-Cycle Settling for All Data Rates

Description

ADC 16BIT 2KSPS 4DIFF/7SGL I/P 32QFN
The ADS1146, ADS1147, and ADS1148 devices are precision, 16-bit analog-to-digital converters (ADCs) that include many integrated features to reduce system cost and component count for sensor measurement applications. The devices feature 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 ADS1147 and ADS1148 devices also provide a builtin, low-drift voltage reference, and two matched programmable excitation current sources (IDACs). An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and general purpose digital I/Os (ADS1147 and ADS1148). 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 including resistive bridge sensors. 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 50-Hz and 60-Hz interference are rejected by the filter.

Specifications

Resolution (Bits):
16bit
Sampling Rate:
2kSPS
Input Channel Type:
Differential Single Ended
Data Interface:
SPI
Supply Voltage Type:
Single
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.25V
ADC / DAC Case Style:
QFN
No. of Pins:
32Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
105°C
Product Range:
Octal 16-Bit Sigma-Delta ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Operating Temperature Range:
-40°C to +105°C
Supply Current:
225µA
Supply Voltage Range:
2.7V to 5.25V
Supply Voltage Range - Analogue:
2.5V to 5.25V
Supply Voltage Range - Digital:
2.7V to 5.25V

Alternate Descriptions

Avnet America

ADC Single Delta-Sigma 2ksps 16-bit Serial 32-Pin VQFN EP T/R

Avnet America product

Avnet Europe

ADC Single Delta-Sigma 2ksps 16-bit Serial 32-Pin VQFN EP T/R

Avnet Europe product

Texas Instruments

16-Bit 2kSPS 8-Ch ADC With PGA, Reference, and IDAC for Precision Sensor Measurement

Texas Instruments product