Texas Instruments ( News - Alert) (TI), a semi-conductor company with global presence, launched two multi-channel, 16-bit, delta-sigma analogue-to-digital converters (ADCs). They are ADS1174 (quad) and ADS1178 (octal).
The new ADCs provide the combined benefit of DC accuracy and AC performance at a lower cost, according to TI. Data rates are up to 52k samples per second (SPS) and power dissipation is at the rate 7mW/channel. High-speed mode is 31mW/Ch at 52kSPS and low-power mode is 7mW/Ch at 10kSPS.
The two devices allow synchronous sampling of four and eight channels. ADS1174 and ADS1178 have identical packages, and they are compatible with the higher-grade 24-bit ADS1274 and ADS1278 thus perform drop-in upgrades.
The ADS1174 and ADS1178 find the best application in signal acquisition applications such as power metering, defibrillators, ECG monitors, pressure sensors, coriolis flow meters, and vibration/modal analysis.
ADS1174 and ADS1178 feature 25kHz bandwidth, 2uV/C offset drift and up to 97dB signal-to-noise ratio (SNR).
The SYNC input control pin allows the device conversion to be started and synchronized to an external event. SPI and Frame-Sync serial interfaces are supported. The two ADSs are specified over the extended industrial range, (–40°C to +105°C), and is available in HTQFP-64 PowerPAD packages.
ADS1174 costs $12.45 each in 100-piece quantities, and ADS1178 costs $19.95 each in 100-piece quantities.
Rajani Baburajan is a contributing editor for TMCnet. To read more of Rajani’s articles, please visit her columnist page.
Don’t forget to check out TMCnet’s White Paper Library, which provides a selection of in-depth information on relevant topics affecting the IP Communications industry. The library offers white papers, case studies and other documents which are free to registered users. Today’s featured white paper is Four Key Ingredients for Successful Mobile Services, brought to you by HP Software.
Internet Protocol (IP) | X | IP stands for Internet Protocol, a data-networking protocol developed throughout the 1980s. It is the established standard protocol for transmitting and receiving data
in packets over the Internet. I...more |
|