Product category: Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: ADS5421
Edited by the Electronicstalk Editorial Team on 17 January 2002
40Msample/s convertor moves to
CMOS to save power
Texas Instruments is claiming the industry's first 14bit, 40Msmple/s CMOS analogue-to-digital convertor with the ADS5421
The device's CMOS process design provides dramatically lower power consumption than competitive products designed with BiCMOS or complementary bipolar technologies. In addition, the CMOS design allows TI to offer a high-performance 14bit convertor at much lower prices than competition in the 40 to 52Msmple/s performance range.
This article was originally published on Electronicstalk on 17 January 2002 at 8.00am (UK)
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The ADS5421 consumes only 850mW power and features a power-down mode which reduces power consumption to a mere 40mW.
The device's signal-to-noise ratio (SNR) performance of 75dB and spurious-free dynamic range (SFDR) in excess of 80dB makes this device suitable for a variety of high-end systems.
Applications include baseband digitisation in wideband communications systems, high performance time domain applications such as high-end video cameras or continuous wave doppler medical imaging, and monitoring of optical performance.
The ADS5421 operates on a single +5V analogue supply and provides a high-bandwidth linear track-and-hold, an internal/external reference option, flexible input range and a low DNL of +/-0.5LSB.
The clock input can accept a low-level differential sine wave or square wave signal down to 0.5V peak-peak, further improving the SNR performance.
It also accepts a single-ended clock signal and has flexible threshold levels.
The ADS5421 is available now in a small LQFP-64.
Suggested resale pricing starts at $20.90 in 1000 piece quantities.
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