SSM2212CPZ-RL

更新时间： 2024-02-19 15:25:42

品牌	Logo	应用领域
亚德诺 - ADI		晶体晶体管
页数	文件大小	规格书
12页	260K
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SSM2212CPZ-RL 数据手册

Audio, Dual-Matched

NPN Transistor

SSM2212

PIN CONFIGURATION

FEATURES

Very low voltage noise: 1 nV/√Hz maximum @ 100 Hz

Excellent current gain match: 0.5%

Low offset voltage (V_OS): 200 μV maximum

Outstanding offset voltage drift: 0.03 μV/°C

High gain bandwidth product: 200 MHz

NIC

SSM2212

NIC = NO INTERNAL CONNECTION

Figure 1. 8-Lead SOIC_N

GENERAL DESCRIPTION

The SSM2212 is a dual, NPN-matched transistor pair that is

specifically designed to meet the requirements of ultralow noise

audio systems.

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.

With its extremely low input base spreading resistance (rbb' is

typically 28 Ω) and high current gain (h_FEtypically exceeds 600

at I_C= 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.

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 V_BEbetween transistor pairs, the low V_OSof the SSM2212

does not need offset trimming in most circuit applications.

Excellent matching of the current gain (Δh_FE) to about 0.5% and

low V_OSof less than 10 μV typical make the SSM2212 ideal for

symmetrically balanced designs, which reduce high-order

amplifier harmonic distortion.

The SSM2212 performance and characteristics are guaranteed

over the extended temperature range of −40°C to +85°C.

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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