ADC12EU050 - the industry’s first high-speed, continuous-time sigma-delta (CTSD) analog-to-digital converter (ADC)

National Semiconductor announced the availability of the industry’s first high-speed, continuous-time sigma-delta (CTSD) analog-to-digital converter (ADC).

The ADC12EU050, a member of National’s PowerWise® energy-efficient family, is an 8-channel, 12-bit, 50 mega-samples per second (MSPS) ADC that offers an alias-free sample bandwidth up to 25 MHz, while consuming 30 percent less power (350 mW) than competing pipeline devices.

This low-power breakthrough enables manufacturers to extend battery life and reduce heat in portable medical ultrasound and industrial imaging equipment.

• Resolution 12 Bits
• Conversion Rate 40 to 50 MSPS
• SNR 70 dBFS (typ) @ (fIN = 3.5MHz)
• THD –70 dB (typ) @ (fIN = 3.5MHz)
• Power Consumption :
  - 44 mW/ch (typ) @ 50MSPS
  - 40 mW/ch (typ) @ 40MSPS
• Total Active Power Consumption:
  - 350 mW (typ) @ 50MSPS (Equalizer off)
• Inter-Channel Isolation:
  - 110 dB @ (fIN = 3.5MHz)
• Operating Temp. Range -40 to +85 °C

The ADC12EU050’s innovative CTSD architecture offers many advantages compared to traditional pipeline architectures

• Lower power dissipation
• Integrated low-pass, brickwall anti-aliasing filter that blocks out-of-band signals from aliasing down in-band
• Easy-to-drive, purely resistive input stage that does not require a sample-and-hold amplifier
• Integrated phase-locked loop ( PLL) and voltage-controlled oscillator ( VCO) that performs clock conditioning, enabling system designers to use inexpensive clock sources
• On-chip instant-overload recovery (IOR) circuitry that recovers from saturation within one clock cycle, if the input exceeds pre-determined limits

Applications

• Battery powered portable systems,
• Medical imaging, ultrasound
• Industrial ultrasound: such as non-destructive testing,
• Communications

For more information please contact your local SPOERLE Branch Office or visit the www.nsc.com homepage.

Dataheet:

http://cache.national.com/ds/DC/ADC12EU050.pdf

Productfolder: