The Toshiba TLP2955 consists of a GaAℓAs light-emitting diode coupled with a high-gain, high-speed photo detector. It is housed in the DIP8 package. The detector has a totem-pole output stage with current sourcing and sinking capabilities. The TLP2955 has an internal Faraday shield that provides a guaranteed common-mode transient immunity of ±20 kV/µs. The TLP2955 has an buffer output. A inverter output version, the TLP2958, is also available.