This has been written for Altium Designer Summer 08, but steps should be similar if not identical for other versions of Altium also (it still seems applicable for AD14.3 in July 2014). Simulating circuits in Altium can be a little confusing, so I’ve written this little guide to help anybody attempting it! It uses an enhanced version of the event-driven XSPICE, and is fully compatible with SPICE3f5. For more detailed information about SPICE, including the various components and parameters it supports, see the SPICE Simulation page.Īltium has a built-in mixed-signal (analogue and digital) simulator. Stress-induced outbursts: Microphonics in ceramic capacitors (Part 1)ĭistortion and source impedance in JFET-input op ampsĬompensate Transimpedance Amplifiers Intuitively (Rev.Note that this page is about the specifics of using Altium Designer for circuit simulation (which uses SPICE). Stress-induced outbursts: Microphonics in ceramic capacitors (Part 2) Reducing distortion from CMOS analog switches Stabilizing difference amplifiers for headphone applications The Signal e-book: A compendium of blog posts on op amp design topicsĪmp up your cans: Is your op amp stable? (Part 2) A)Ĭurrent-to-voltage converter circuit for audio DACsĪnalog Engineer’s Pocket Reference Guide Fifth Edition (Rev.

No headroom, no problem: buffering and filtering an audio signal chain in low-voltage systemsīand pass filtered inverting attenuator circuit (Rev. Understanding Op Amp Noise in Audio Circuits

OPA161x SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifiers datasheet (Rev. These devices are specified from –40☌ to +85☌. The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.īoth the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. These devices operate over a very wide supply range of ☒.25 V to ☑8 V, on only 3.6 mA of supply current per channel. These devices also have a high output drive capability of ☓0 mA. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1.1-nV/√ Hz noise density with an ultralow distortion of 0.000015% at 1 kHz.

Altium designer spice model amplifier