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Updated at 23/06/2025 10:30:15(UTC+8)
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Description
- GENERAL DESCRIPTION
- The SSM2212 is a dual, NPN-matched transistor pair that is specifically designed to meet the requirements of ultralow noise audio systems.
- With its extremely low input base spreading resistance (rbb" is typically 28 Ω) and high current gain (hFE typically exceeds 600 at IC = 1 mA), the SSM2212 can achieve outstanding signal-to noise ratios. The high current gain results in superior performance compared to systems incorporating commercially available monolithic amplifiers.
- Excellent matching of the current gain (ΔhFE) to about 0.5% and low VOS of less than 10 μV typical make the SSM2212 ideal for symmetrically balanced designs, which reduce high-order amplifier harmonic distortion.
- Stability of the matching parameters is guaranteed by protection diodes across the base-emitter junction. These diodes prevent degradation of beta and matching characteristics due to reverse biasing of the base-emitter junction.
- The SSM2212 is also an ideal choice for accurate and reliable current biasing and mirroring circuits. Furthermore, because a current mirror’s accuracy degrades exponentially with mismatches of VBE between transistor pairs, the low VOS of the SSM2212 does not need offset trimming in most circuit applications.
- The SSM2212 performance and characteristics are guaranteed over the extended temperature range of −40°C to +85°C.
- FEATURES
- Very low voltage noise: 1 nV/√Hz maximum @ 100 Hz
- Excellent current gain match: 0.5%
- Low offset voltage (VOS): 200 μV maximum
- Outstanding offset voltage drift: 0.03 μV/°C
- High gain bandwidth product: 200 MHz
SSM2212 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Case/Package | SOIC |
| Show | |
| Product Lifecycle Status | Active |
| RoHS | RoHS Compliant |
Order guide
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- Delivery date: usually 2 to 7 working days.
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- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
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