AS3-5-12 - Brand New Analog Devices Interface - CODECs
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Product Details
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[ Joint Stock Company ALFA ]
General Description
The AS194 and AS394 are junction isolated ultra well-matched monolithic NPN transistor pairs with an order of magnitude improvement in matching over conventional transistor pairs.
Electrical characteristics of these devices such as drift versus initial offset voltage, noise, and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor. Extrinsic base and emitter resistances is very low, giving very low noise and operating over a wide current range.
To guarantee long term stability of matching parameters, internal clamp diodes have been added across the emitter-base junction of each transistor. These prevent degradation due to reverse biased emitter currentthe most common cause of field failures in matched devices. The parasitic isolation junction formed by the diodes also clamps the substrate region to the most negative emitter to ensure complete isolation between devices.
The AS194H, AS394H, AS394CH are available in the 8-pin metal can TO5-8 package and the AS394DE and AS394CDE in the 8-lead plastic SOIC-8 (150mil) EPAD package.Features
• "Ideal" and identical transistors
• Common-mode rejection ratio > 120dB
• Emitter-base offset voltage < 100µV
• Emitter-base offset voltage temperature drift 0,1µV/ °C
• Current gain (hFE) matched < 2%
• Parameters are guaranteed in
the range of collector current of 10µА tо 1mА
• Noise Voltage Density of 1,8 nV /√Hz
• Ideal logarithmic properties -
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Datasheet
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Popular parts of the same kind
- Datasheet: Download AS3-5-12
- Chipdatas Part: CD92-AS3-5-12
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/06 22:14 +0800
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