ADS1278IPAPTG4
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Texas Instruments ADS1278IPAPTG4

Manufacturer No:
ADS1278IPAPTG4
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC ADC 24BIT SIGMA-DELTA 64HTQFP
Delivery:
Payment:
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iso45001
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Product Introduction

Overview

The ADS1278IPAPTG4, produced by Texas Instruments, is a high-performance, octal-channel, 24-bit delta-sigma analog-to-digital converter (ADC). This device is designed for simultaneous sampling of eight channels, making it ideal for demanding multi-channel signal acquisition applications. Based on the single-channel ADS1271, the ADS1278 combines the benefits of industrial and high-resolution ADCs, offering excellent DC and AC specifications. It features a high-order, chopper-stabilized modulator and an onboard decimation filter, which provide very low drift and low in-band noise, along with a usable signal bandwidth up to 90% of the Nyquist rate.

Key Specifications

Parameter Value Unit
Resolution 24 Bits
Number of Input Channels 8
Sample Rate (max) 144 kSPS
Signal-to-Noise Ratio (SNR) Up to 111 dB
Total Harmonic Distortion (THD) -108 dB
Offset Drift 0.8 μV/°C
Gain Drift 1.3 ppm/°C
Analog Supply Voltage (AVDD) 4.75V to 5.25V V
Digital Core Supply Voltage (DVDD) 1.65V to 2.2V V
Operating Temperature Range -55°C to 175°C °C
Interface SPI or Frame-Sync Serial
Power Consumption (Typical) 530 mW (total), 7 mW/channel (Low-Speed mode) mW

Key Features

  • Simultaneous sampling of eight channels
  • High-order, chopper-stabilized modulator for low drift and noise
  • Onboard decimation filter for suppressing modulator and out-of-band noise
  • Usable signal bandwidth up to 90% of the Nyquist rate
  • Four operating modes: High-Speed (144 kSPS), High-Resolution (52 kSPS, 111 dB SNR), Low-Power (52 kSPS, 31 mW/ch), and Low-Speed (10 kSPS, 7 mW/ch)
  • Linear phase digital filter
  • Modulator output option (digital filter bypass)
  • Selectable frame-sync or SPI serial interface for convenient interfacing to DSPs, FPGAs, and microcontrollers
  • Low sampling aperture error

Applications

  • Vibration analysis
  • Medical monitoring
  • Industrial and energy metering equipment
  • High channel count systems requiring simultaneous sampling

Q & A

  1. What is the resolution of the ADS1278IPAPTG4?

    The ADS1278IPAPTG4 has a resolution of 24 bits.

  2. How many input channels does the ADS1278IPAPTG4 support?

    The ADS1278IPAPTG4 supports eight input channels.

  3. What is the maximum sample rate of the ADS1278IPAPTG4?

    The maximum sample rate of the ADS1278IPAPTG4 is 144 kSPS.

  4. What is the signal-to-noise ratio (SNR) of the ADS1278IPAPTG4?

    The SNR of the ADS1278IPAPTG4 can be up to 111 dB.

  5. What are the operating modes available for the ADS1278IPAPTG4?

    The ADS1278IPAPTG4 offers four operating modes: High-Speed, High-Resolution, Low-Power, and Low-Speed.

  6. What type of interface does the ADS1278IPAPTG4 support?

    The ADS1278IPAPTG4 supports both SPI and frame-sync serial interfaces.

  7. What is the typical power consumption of the ADS1278IPAPTG4?

    The typical power consumption of the ADS1278IPAPTG4 is 530 mW, with a low-speed mode consuming 7 mW per channel.

  8. What is the operating temperature range of the ADS1278IPAPTG4?

    The operating temperature range of the ADS1278IPAPTG4 is -55°C to 175°C.

  9. What are some common applications for the ADS1278IPAPTG4?

    The ADS1278IPAPTG4 is commonly used in vibration analysis, medical monitoring, industrial and energy metering equipment, and high channel count systems.

  10. How does the ADS1278IPAPTG4 achieve low drift and noise?

    The ADS1278IPAPTG4 achieves low drift and noise through its high-order, chopper-stabilized modulator and onboard decimation filter.

Product Attributes

Number of Bits:24
Sampling Rate (Per Second):144k
Number of Inputs:8
Input Type:Differential
Data Interface:SPI
Configuration:ADC
Ratio - S/H:ADC:- 
Number of A/D Converters:1
Architecture:Sigma-Delta
Reference Type:External
Voltage - Supply, Analog:5V
Voltage - Supply, Digital:1.65V ~ 1.95V
Features:- 
Operating Temperature:-40°C ~ 105°C
Package / Case:64-PowerTQFP
Supplier Device Package:64-HTQFP (10x10)
Mounting Type:Surface Mount
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Similar Products

Part Number ADS1278IPAPTG4 ADS1274IPAPTG4
Manufacturer Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key
Number of Bits 24 24
Sampling Rate (Per Second) 144k 144k
Number of Inputs 8 4
Input Type Differential Differential
Data Interface SPI SPI
Configuration ADC ADC
Ratio - S/H:ADC - -
Number of A/D Converters 1 1
Architecture Sigma-Delta Sigma-Delta
Reference Type External External
Voltage - Supply, Analog 5V 5V
Voltage - Supply, Digital 1.65V ~ 1.95V 1.65V ~ 1.95V
Features - -
Operating Temperature -40°C ~ 105°C -40°C ~ 125°C
Package / Case 64-PowerTQFP 64-PowerTQFP
Supplier Device Package 64-HTQFP (10x10) 64-HTQFP (10x10)
Mounting Type Surface Mount Surface Mount

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