STMicroelectronics

The RHF100 is a 1.2 V precision, low-power, fixed shunt, voltage reference dedicated to space applications. Mounted in a Flat-10 hermetic ceramic package, the RHF100 uses dedicated architecture and design rules to provide the best immunity against radiation. The very low operating current and very good stability over a wide temperature range stretching from -55 °C to 125 °C make the RHF100 particularly suitable for precision and power saving.

The RHF1201 is a 12-bit, 50 Msps sampling frequency analog-to-digital converter that uses pure CMOS 0.25 μm technology combining high performance and very low power consumption. The device is based on a pipeline structure and digital error correction to provide excellent static linearity. Specifically designed to optimize the speed power consumption ratio, the RHF1201 integrates a proprietary track-and-hold structure making it ideal for IF-sampling applications up to 150 MHz. A voltage reference network is 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. Output data can be coded in two different formats. The analog and digital power supplies operate from 2.7 V to 3.6 V, drawing a current consumption of 1.65 mA typ. and 2 mA max. only. A data ready signal, raised when the data is valid on the output, can be used for synchronization purposes.

The RHF1401 is a 14-bit analog-to-digital converter that uses pure CMOS 0.25 µm technology combining high performance 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.

The RHFAD128 is specifically designed to sustain ionizing dose and heavy-ions for space applications by using a high-end proven CMOS technology. This device is a low-power, multiplexed eight-channel 12-bit analog-to-digital converter for conversion from 50 ksps to 1 Msps. The architecture is based on the successive-approximation register with internal track-and-hold. The RHFAD128 features 8-single ended inputs that can be used as 4 differential inputs. The output serial data is straight binary and is compatible with SPI™. The analog and digital power supplies operate from 2.7 V to 3.6 V, drawing a current consumption of 2 mA max. only. The RHFAD128 is in hermetic ceramic Flat-16 leads, and works from -55 °C to + 125 °C ambient temperature.

The RHFL4913A is a high-performance adjustable positive voltage regulator, able to provide 2 A of maximum current in FLAT-16 package (3 A in the SMD5C package) from an input voltage ranging from 3 V to 12 V, with a typical dropout voltage of 350 mV. The RHFL4913A features exceptional radiation performances. It is tested in accordance with Mil Std 883E Method 1019.6, in ELDRS conditions. The device is available in the FLAT-16 and the SMD5C hermetic ceramic package, and the QML-V die is suitable for harsh environments. It operates with an input supply of up to 12 V. The RHFL4913A is QML-V qualified, DSCC SMD #5962F02524.

The RHFL7913A adjustable is a high performance Rad hard negative voltage regulator. Available in FLAT-16 and new SMD5C hermetic ceramic packages, it is specifically intended for space and harsh radiation environments. It provides exceptional electrical performances, high speed and low dropout voltage. Input supply ranges from - 3 V to - 12 V. It also provide logical control / monitor functions (inhibit, output monitor, short-circuit control) from/to external positive voltage signals, while the entire RHFL7913A adjustable analog functions are biased at negative voltages with respect of ground pin. The device is QML-V qualified with SMD 5962-02532.

The RHFLVDS2281 is an 8-channel, 4x4 crosspoint switch base, on low voltage differential signaling (LVDS) for low-power and high-speed communications. The two 4x4 multiplexers allow connection from any of the four inputs to any of the four outputs. Packaged and qualified for use in aerospace environments in a low-power, fast-transmission standard, the RHFLVDS2281 operates at 3.3 V power supply (3.6 V max. operating and 4.8 V AMR) and a common mode of -4 V to +5 V. The LVDS outputs operate over a controlled impedance of 100-ohm transmission media that may be printed circuit board traces, back planes, or cables. The circuit features an internal fail-safe function to ensure a known state in case of an input short circuit or a floating input. All pins have cold spare buffers to ensure they are in high impedance when VCCis tied to GND. The RHFLVDS2281 can operate over a wide temperature range of -55 °C to +125 °C and it is housed in an hermetic Ceramic Flat-64 package.

The RHFLVDS31A is a quad, low-voltage, differential signaling (LVDS) driver specifically designed, packaged, and qualified for use in aerospace environments in a low-power and fast point-to-point baseband data transmission standard. Operating at 3.3 V power supply, the RHFLVDS31A operates over a controlled impedance of 100-ohm transmission media that may be printed circuit board traces, back planes or cables. The circuit features an internal fail-safe function to ensure a known state in case of floating input. All pins have cold spare buffers to ensure they are in high impedance when VCC is tied to GND. Designed on ST's proprietary CMOS process with specific mitigation techniques, the RHFLVDS31A achieves "best in the class" for hardness to total ionisation dose and heavy ions. The RHFLVDS31A can operate over a large temperature range of -55 °C to +125 °C and it is housed in an hermetic Ceramic Flat-16 package.