Other Parts Discussed in Thread: TINA-TI, OPA548, , OPA140
Tool/software: TINA-TI or Spice Models
Hello! I'm trying to translate a 5V DAC voltage to a -5 to 45V signal. The datasheet shows that this part's output can be disabled when placed in shutdown mode (either thermal or using the E/S pin). When I simulate this, it appears that the part is actually outputting the negative rail (in my case, -12V, which is an issue) rather than floating. Is this just an issue with simulation not knowing how to simulate a floating/tristated output or does the part actually output the negative rail when in shutdown mode?
Below is the circuit I'm using:
Let me know if any additional information is needed. Thanks!