IS610 and IS611 are optically coupled isolators consisting of an infrared light emitting diode and a symmetrical bilateral silicon photodetector. They perform like an ideal isolated FET designed for distortion-free control of low level AC and DC analog signals.
The IS610 and IS611 are optically coupled isolators that combine an infrared LED with a bilateral silicon photodetector. They are packaged in a standard 6‑pin dual‑in‑line plastic case and can be ordered with through‑hole, surface‑mount, or tape‑and‑reel options.
These devices function as remote variable resistors or analog signal switches, offering extremely low offset voltage, high linearity, and isolation up to 5300 VRMS. Typical applications include variable attenuation, automatic gain control, active filter tuning, and isolated sample‑and‑hold circuits.
| Input Forward Voltage (VF) | 1.1‑1.75 V (IF = 16 mA) |
|---|---|
| Reverse Voltage (VR) | 5 V |
| On‑state Resistance (R(on)) – IS610 | 200 Ω (IF = 16 mA) |
| On‑state Resistance (R(on)) – IS611 | 170 Ω (IF = 16 mA) |
| Isolation Voltage | 5300 VRMS (7500 Vpk‑pk) |
| Total Power Dissipation | 350 mW |
The IS610 has an on‑state resistance of about 200 Ω when driven with a forward current of 16 mA.
Both devices provide an isolation voltage of 5300 VRMS (and a peak‑to‑peak rating of 7500 V).
Yes, they are available with a surface‑mount option (add SM after the part number).
The input diode can withstand a reverse voltage of 5 V.