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ADR1001 Bipolar ±5V DAC Drive Using

Thread Summary

The user encountered an issue with the ADR1001 in LTspice where setting the negative supply to -7V or lower results in an output of -1V, indicating potential protection function activation. The final answer confirms this is a known issue with the LTspice model affecting the INV1 and INV2 pins, and it does not reflect the actual performance of the ADR1001 with a negative heater GND.
AI Generated Content
Category: Software
Product Number: ADR1001
Software Version: LTspice

Hello.

I have a question about ADR1001.

I designed the circuit in LTspice based on Figure 47 in the datasheet, but setting the negative supply to -7V results in an output of -1V.

When a negative supply of -7V or lower is applied, it appears the protection function is activated. Is this behavior correct?

Best regards.

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