ISO106

Overview

The ISO106 is a hermetic isolation buffer amplifier featuring a 40-pin ceramic DIP package. It provides a rated continuous isolation voltage of 3500Vrms and operates within an ambient temperature range of -25°C to +85°C. The device supports a wide input and output voltage range of ±10V with a small signal bandwidth of 70kHz. It includes internal +5VDC voltage references and allows for optional gain and offset adjustments.

Feature Summary

• Hermetically sealed three-chip hybrid design utilizing differential ceramic capacitive barriers
• Digital encoding of analog signals ensures galvanic isolation without external components
• High common-mode rejection capability protects against severe ground noise and high dV/dt transients

Applications

• Transducer channel isolation for thermocouples, RTDs, pressure bridges, and flow meters
• 4mA to 20mA loop isolation in industrial process control systems
• Motor and SCR control circuits requiring fault protection
• Ground loop elimination in data acquisition and test equipment
• Biomedical and analytical measurements involving high voltage potentials

Procurement Notes

Verify the specific suffix (e.g., B) to confirm accuracy class and initial error specifications. Confirm package type matches the required 40-pin ceramic DIP form factor. Check current availability status as this component may be discontinued or available through secondary distributors. Ensure supply voltages align with the ±10V to ±20V operational range for optimal performance.

Selection Notes

Select the ISO106 when a higher isolation rating than the ISO102 is required, specifically 3500Vrms versus 1500Vrms. Consider the 40-pin package dimensions for board layout compatibility. Evaluate the need for the 'B' grade if tighter nonlinearity and offset specifications are critical for the application. Verify that the 70kHz bandwidth meets the signal frequency requirements.

Part Context

The ISO106 belongs to the Burr-Brown series of capacitive coupled isolation products. It shares electrical performance characteristics with the ISO102 but differs in physical construction and isolation ratings. The device utilizes a digital barrier technology to transmit analog signals across high-voltage gaps while maintaining signal integrity and system safety.

Replacement Considerations

ISO106B