Holt Integrated Circuits said its RS-485 transceiver family, HI-4850, complies with the EMI/EMC requirements of RTCA/DO-160G, Section 21, Category P and the lightning requirements of RTCA/DO-160G, Section 22, Level 3 and 4 Pin Injection Test Waveform Set A (3 & 4), Set B (3 & 5A) and Set Z (3 & 5B).
The RTCA/DO-160G specification provides a standardized test methodology that is accepted in the avionics industry as the gold standard for environmental testing of airborne equipment.
Such compliance guarantees that Holt’s devices operate reliably in a broad variety of applications with tough environmental requirements such as avionics and industrial control.
The HI-4850 is a slew-rate controlled TIA-485/TIA-422-B and ISO 8482:1993 compliant transceiver. The device can operate over an extended power-supply range (3.0V to 5.5V) and wide common mode voltage range (-15V to +20V). The HI-4850 has a half-duplex configuration, with slew rate optimized for data rates below 5 Mbps. The driver slew-rate control and pre-emphasis reduces high-frequency components in the output signal transitions along with compensating for impedance mismatch. These features provide optimum EMI and jitter performance essential in EMI sensitive environments and high-integrity data link applications such as industrial automation.
HI-4850 features • Slew Rate Control and Pre-Emphasis for superior EMI • Extended Power Supply Operating Range (3.0V - 5.5V) • Extended Receiver Common-Mode Range o -15V to +20V Half-Duplex o +/-24V Full-Duplex
• ESD Protection: o 16KV HBM (Bus Pins) o 8KV HBM (Logic Pins)
• 5 Mbps Data Rate up to 100ft (CAT-5 UTP) • 2 Mbps Data Rate up to 1000ft • Input Impedance = 1/7 UL Supporting 224 Nodes • Guaranteed Fail-Safe Receiver Operation • Thermal Shutdown and Current • Extended Temperature Range (-55°C to +125°C) • Industry Standard 75176 Pinout Applications: • Extended temperature range RS-485/422 networks • Process Control and Factory Automation • EMI emission sensitive avionics • Industrial field bus networks • Networks requiring extended common-mode range
Pricing: Devices are priced from $2.96 in 1K quantities and are available immediately.
Pricing is in line with distribution resale for a device with similar features in 1K quantities. What is your application and expected pricing/quantity?
Director of Business Development
Holt Integrated Circuits
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