ADS1247IPWR
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Texas Instruments ADS1247IPWR

Manufacturer No:
ADS1247IPWR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC ADC 24BIT SIGMA-DELTA 20TSSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The ADS1247IPWR, produced by Texas Instruments, is a highly integrated, precision 24-bit analog-to-digital converter (ADC) designed for precision sensor measurements. This device features an onboard, low-noise, programmable gain amplifier (PGA), a precision delta-sigma (ΔΣ) ADC with a single-cycle settling digital filter, and an internal oscillator. It is particularly suited for temperature sensor applications, including thermocouples, thermistors, and resistance temperature detectors (RTDs), as well as other small signal measurements such as resistive bridge sensors.

Key Specifications

Parameter Value Unit
Resolution 24 Bits
Data Rate Up to 2 kSPS SPS
Analog Supply Voltage 2.7 V to 5.25 V (Unipolar), ±2.5 V (Bipolar) V
Digital Supply Voltage 2.7 V to 5.25 V V
Operating Temperature –40°C to 125°C °C
PGA Gain 1 to 128 V/V
Noise (PGA = 128) 48 nV RMS nV RMS
Internal Reference Voltage 2.048 V V
Reference Drift 10 ppm/°C (Maximum) ppm/°C
Excitation Current Sources 50, 100, 250, 500, 750, 1000, 1500 μA μA

Key Features

  • Programmable data rates up to 2 kSPS with single-cycle settling for all data rates.
  • Simultaneous 50-Hz and 60-Hz rejection at 20 SPS.
  • Analog multiplexer with 4 independently selectable inputs.
  • Low-noise PGA with gains up to 128.
  • Dual-matched programmable excitation current sources (IDACs).
  • Low-drift internal 2.048-V reference with 10-mA output capacity.
  • Sensor burn-out detection and voltage bias for thermocouples.
  • Internal temperature sensor and power supply and VREF monitoring.
  • Self and system calibration capabilities.
  • SPI™-compatible serial interface.
  • General-purpose digital I/Os (4 or 8, depending on the model).

Applications

  • Temperature sensor measurements: RTDs, thermocouples, and thermistors.
  • Pressure measurements.
  • Flow meters.
  • Factory automation and process controls.
  • Resistive bridge sensors and other small signal measurements.

Q & A

  1. What is the resolution of the ADS1247IPWR ADC?

    The ADS1247IPWR has a resolution of 24 bits.

  2. What are the programmable data rates of the ADS1247IPWR?

    The data rates are programmable up to 2 kSPS.

  3. What is the noise level of the PGA at a gain of 128?

    The noise level is 48 nV RMS at PGA = 128.

  4. What is the internal reference voltage and its drift?

    The internal reference voltage is 2.048 V with a maximum drift of 10 ppm/°C.

  5. What are the excitation current source settings?

    The excitation current sources can be set to 50, 100, 250, 500, 750, 1000, and 1500 μA.

  6. Does the ADS1247IPWR support simultaneous 50-Hz and 60-Hz rejection?
  7. What is the operating temperature range of the ADS1247IPWR?

    The operating temperature range is –40°C to 125°C.

  8. Does the ADS1247IPWR have an internal temperature sensor?
  9. What interface does the ADS1247IPWR use for communication?

    The ADS1247IPWR uses an SPI™-compatible serial interface.

  10. What are some of the key applications of the ADS1247IPWR?

Product Attributes

Number of Bits:24
Sampling Rate (Per Second):2K
Number of Inputs:2, 3
Input Type:Differential, Single Ended
Data Interface:SPI
Configuration:MUX-PGA-ADC
Ratio - S/H:ADC:- 
Number of A/D Converters:1
Architecture:Sigma-Delta
Reference Type:External, Internal
Voltage - Supply, Analog:2.7V ~ 5.25V
Voltage - Supply, Digital:2.7V ~ 5.25V
Features:PGA, Temperature Sensor
Operating Temperature:-40°C ~ 105°C
Package / Case:20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:20-TSSOP
Mounting Type:Surface Mount
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In Stock

$10.88
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Similar Products

Part Number ADS1247IPWR ADS1248IPWR ADS1242IPWR ADS1243IPWR ADS1246IPWR ADS1247IPW
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active
Number of Bits 24 24 24 24 24 24
Sampling Rate (Per Second) 2K 2K 15 15 2K 2K
Number of Inputs 2, 3 4, 7 4 8 1 2, 3
Input Type Differential, Single Ended Differential, Single Ended Differential, Single Ended Differential, Single Ended Differential, Single Ended Differential, Single Ended
Data Interface SPI SPI SPI SPI SPI SPI
Configuration MUX-PGA-ADC MUX-PGA-ADC MUX-PGA-ADC MUX-PGA-ADC MUX-PGA-ADC MUX-PGA-ADC
Ratio - S/H:ADC - - - - - -
Number of A/D Converters 1 1 1 1 1 1
Architecture Sigma-Delta Sigma-Delta Sigma-Delta Sigma-Delta Sigma-Delta Sigma-Delta
Reference Type External, Internal External, Internal External External External External, Internal
Voltage - Supply, Analog 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 3.3V, 5V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V
Voltage - Supply, Digital 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V 2.7V ~ 5.25V
Features PGA, Temperature Sensor PGA, Temperature Sensor PGA PGA PGA, Temperature Sensor PGA, Temperature Sensor
Operating Temperature -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 105°C -40°C ~ 105°C
Package / Case 20-TSSOP (0.173", 4.40mm Width) 28-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP 28-TSSOP 16-TSSOP 20-TSSOP 16-TSSOP 20-TSSOP
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount

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