ADS1178

Features: ` Synchronously Sample Four/Eight Channels` Selectable Operating Modes: High-Speed: 52kSPS Data Rate, 30mW/ch Low-Power: 10kSPS Data Rate, 8mW/ch` AC Performance: 25kHz Bandwidth 97dB SNR 105dB THD` Digital Filter: Linear Phase Response Passband Ripple: ±0.005dB Stop Band Attenuation: 10...

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SeekIC No. : 004276997 Detail

ADS1178: Features: ` Synchronously Sample Four/Eight Channels` Selectable Operating Modes: High-Speed: 52kSPS Data Rate, 30mW/ch Low-Power: 10kSPS Data Rate, 8mW/ch` AC Performance: 25kHz Bandwidth 97dB SNR ...

floor Price/Ceiling Price

Part Number:
ADS1178
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2019/7/22

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Product Details

Description



Features:

` Synchronously Sample Four/Eight Channels
` Selectable Operating Modes: High-Speed: 52kSPS Data Rate, 30mW/ch Low-Power: 10kSPS Data Rate, 8mW/ch
` AC Performance: 25kHz Bandwidth 97dB SNR 105dB THD
` Digital Filter: Linear Phase Response Passband Ripple: ±0.005dB Stop Band Attenuation: 100dB
` Selectable SPI™ or Frame Sync Serial Interface
` Simple Pin-Driven Control
` Low Sampling Aperture Error
` Specified from 40°C to +105°C
` Analog Supply: 5V
` I/O Supply: 1.8V to 3.3V
` Digital Core Supply: 1.8V



Application

· 3-Phase Power Monitors
· Defibrillators and ECG Monitors
· Coriolis Flow Meters
· Vibration/Modal Analysis



Specifications

over operating free-air temperature range unless otherwise noted(1)
ADS1174, ADS1178
UNIT
AVDD to AGND
DVDD, IOVDD to DGND
AGND to DGND
Input Current

Analog Input to AGND
Digital Input or Output to DGND
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
0.3 to +6.0
0.3 to +3.6
0.3 to +0.3
100, Momentary
10, Continuous
0.3 to AVDD + 0.3
0.3 to DVDD + 0.3
+150
40 to +105
60 to +150
V
V
V
mA
mA
V
V
°C
°C
°C

(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.




Description

The ADS1174 (quad) and ADS1178 (octal) are multiple delta-sigma () analog-to-digital converters (ADCs) with data rates up to 52k samples-per-second (SPS), which allow synchronous sampling of four and eight channels. These devices use identical packages, permitting drop-in expandability.

The delta-sigma architecture of ADS1174 (quad) and ADS1178 (octal) offers near ideal 16-bit ac performance (97dB SNR, 105dB THD, 1LSB linearity) combined with 0.005dB passband ripple, and linear phase response. The high-order, chopper- stabilized modulator achieves very low drift (4V/°C offset, 4ppm/°C gain) and low noise (1LSBPP). The on-chip finite impulse response (FIR) filter provides a usable signal bandwidth up to 90% of the Nyquist rate with 100dB of stop band attenuation while suppressing modulator and signal out-of-band noise.

Two operating modes of ADS1174 (quad) and ADS1178 (octal) allow for optimization of speed and power: High-speed mode (32mW/Ch at 52kSPS), and Low-power mode (8mW/Ch at 10kSPS).

SYNC input control pin allows the device conversions to be started and synchronized to an external event. SPI and Frame-Sync serial interfaces are supported. ADS1174 (quad) and ADS1178 (octal) are  fully specified over the extended industrial range (40°C to +105°C) and is available in an HTQFP-64 PowerPAD™ package.




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