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RHF1401：Rad-hard 14-bit 20 Msps A/D converter

The RHF1401 is a 14-bit analog-to-digital converter that uses pure (ELDRS-free) CMOS 0.25 μm technology combining high performance, radiation robustness and very low power consumption.

The RHF1401 is based on a pipeline structure and digital error correction to provide excellent static linearity. Specifically designed to optimize power consumption, the device only dissipates 85 mW at 20 Msps, while maintaining a high level of performance. The device also integrates a proprietary track-and-hold structure to ensure a large effective resolution bandwidth.

Voltage references are integrated in the circuit to simplify the design and minimize external components. A tri-state capability is available on the outputs to allow common bus sharing. A data-ready signal, which is raised when the data is valid on the output, can be used for synchronization purposes.

The RHF1401 has an operating temperature range of -55° C to +125° C and is available in a small 48-pin ceramic SO-48 package.

Key Features

• Qml-V qualified, smd 5962-06260
• Rad hard: 300 kRad(Si) TID
• Failure immune (SEFI) and latch-up immune (SEL) up to 120 MeV-cm2 /mg at 2.7 V and 125° C
• Hermetic package
• Tested at Fs = 20 Msps
• Low power: 85 mW at 20 Msps
• Optimized for 2 Vpp differential input
• High linearity and dynamic performances
• 2.5 V/3.3 V compatible digital I/O
• Internal reference voltage with external reference option

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