Features
- Electrically Screened to SMD # 5962-95689
- QML qualified per MIL-PRF-38535 requirements
- 1.2 micron radiation hardened CMOS
- Total dose: 300 krad(Si) (max)
- Latch-up free
- EIA RS-422 compatible inputs
- CMOS compatible outputs
- Input fail safe circuitry
- High impedance inputs when disabled or powered down
- Low power dissipation 138mW standby (max)
- Single 5V supply
- Full -55°C to +125°C military temperature range
Description
The Intersil HS-26C32RH, HS-26C32EH are differential line receivers designed for digital data transmission over balanced lines and meets the requirements of EIA Standard RS-422. Radiation hardened CMOS processing assures low power consumption, High-Speed, and reliable operation in the most severe radiation environments. The HS-26C32RH, HS-26C32EH have an input sensitivity typically of 200mV over the common mode input voltage range of ±7V. The receivers are also equipped with input fail safe circuitry, which causes the outputs to go to a logic “1” when the inputs are open. Enable and Disable functions are common to all four receivers. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed in the “Ordering Information” table must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-95689.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Input High Voltage Range | VDD to 0.7 VDD |
| Input Low Voltage Range | 0 to 0.3 VDD Max |
| Output High Voltage (V) | 4.1 |
| Output Low Voltage (V) | 0.4 |
| Supply Voltage (min) (V) | 4.5 - 4.5 |
| Supply Voltage (max) (V) | 5.5 - 5.5 |
| Temp. Range (°C) | -40 to +85°C, -55 to +125°C |
| TID HDR (krad(Si)) | 300 |
| DSEE (MeV·cm2/mg) | 100 |
| Flow | RH Hermetic |
| Qualification Level | Class Q, Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- Line Receiver for MIL-STD-1553 Serial Data Bus
Knowledge Base
-
Hi-Rel Receiver Unused I/O
If some of the receivers are not used, the inputs and the outputs of the unused receiver can be left open. Here is the circuitry that is in front of the internal comparator of the receiver for the IN+ and IN- signal inputs. Notice the IN+ has a resistor tied ...
Apr 4, 2022 -
Hi-Rel RS-422 Receivers ESD Rating
The parts were ESD HBM tested per MIL-STD-883 TM3015.7. These RS-422 devices were developed over 30 years ago. From the archived files for HBM testing, these receivers had a pass threshold of 800V on the differential pins and 2kV on the other pins. ESD level was ...
Mar 28, 2025
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