A Spanish SME has developed a novel radiation-hardened A/D converter that presents a sampling rate of 100 Msps (Megasamples per second), 12-bit resolution and an effective resolution (ENOB, “effective number of bits”) of 10.4 bits.
The device is a European analog-to-digital converter (ADC) with 10.4 effective bit resolution for 2Vpp input signal at a maximum sampling frequency of 100Msps. Its application targets high-reliability uses under radiation environments in defense, aeronautic, industry and medical instrument fields.
The ADC product comprises a dedicated Sample & Hold Amplifier (SHA) and a multi-stage Pipeline ADC with digital correction and robust design for a high-reliability operation in critical applications where the environment variable (high range temperature variations).
The Analog-to-Digital Converter (ADC) is integrated in a CMOS technology (“Complementary Metal-Oxide Semiconductor”), which means that these circuits can be integrated with standard digital circuits on the same substrate, within the same integrated circuit. This fact allows the converter to provide functionalities such as:
* Ability to reconfigure the system.
* Control flows.
Main features of the technology are:
Resolution: 12 bits
SNDR (noise and distortion ratio): 64,4dB
Sampling frequency: 100MHz
Input voltage: 2Vpp
Low power: 300mW @100MHz
TID: 300 kRad (Si)
SEFI (Sequential Electronic Fuel Injection): Failure immune up to 80 MeV·cm2/mg
SEL (Single-Event Latchup): Failure immune up to 80 MeV·cm2/mg
High-reliability CQFP-48 pins
Temperature range: -55ºC / 125ºC
Functionality: Digital correction
Serial port interface (SPI)
Low-jitter differential clock receiver.
Duty-Cycle Stabilization (DCS)
Analog gain: x2, x4
Adaptation of the consumption according to the conversion speed
The Spanish SME is interested in getting in contact with Electronics manufacturets for commercial agreements with technical assistance. They would embed this technology into their products to give more added value