The SSM2212 is a dual, NPN-matched transistor pair that is specifically designed to meet the requirements of ultralow noise audio systems.
The SSM2212 is a dual, NPN‑matched transistor pair designed for ultralow‑noise audio systems. It features very low voltage noise, excellent current‑gain match, and low offset voltage, making it suitable for balanced designs and precision current‑bias circuits.
The document includes sections on features, pin configuration, general description, detailed specifications, absolute maximum ratings, thermal resistance, ESD caution, typical performance curves, application notes such as a fast logarithmic amplifier, package dimensions, and ordering information.
| Voltage Noise Density | 1 nV/√Hz @ 100 Hz |
|---|---|
| Current Gain (hFE) at 1 mA | > 600 |
| Offset Voltage (VOS) typical | < 10 µV |
| Breakdown Voltage (BV CEO) | 40 V |
| Operating Temperature Range | −40 °C to +85 °C |
| Package Type | 8‑Lead Standard Small Outline Package (SOIC) |
The SSM2212 exhibits a voltage noise density of 1 nV/√Hz at 100 Hz.
The transistor’s current gain (hFE) typically exceeds 600 at I C = 1 mA.
The maximum collector‑to‑emitter voltage (BV CEO) is rated at 40 V.
The device is specified for operation from –40 °C to +85 °C.