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SSM2143 Datasheet(PDF) 1 Page - Analog Devices |
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SSM2143 Datasheet(HTML) 1 Page - Analog Devices |
1 / 10 page FUNCTIONAL BLOCK DIAGRAM 12k 12k 6k 6k –IN +IN SSM2143 VOUT REFERENCE V+ V– SENSE Ω Ω Ω Ω PIN CONNECTIONS Epoxy Mini-DIP (P Suffix) and SOIC (S Suffix) 1 2 3 45 6 7 8 REF –IN +IN V– OP-482 NC V+ SENSE SSM2143 TOP VIEW (NOT TO SCALE) NC = NO CONNECT VOUT REV. 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a –6 dB Differential Line Receiver SSM2143 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: FEATURES High Common-Mode Rejection DC: 90 dB typ 60 Hz: 90 dB typ 20 kHz: 85 dB typ Ultralow THD: 0.0006% typ @ 1 kHz Fast Slew Rate: 10 V/ s typ Wide Bandwidth: 7 MHz typ (G = 1/2) Two Gain Levels Available: G = 1/2 or 2 Low Cost GENERAL DESCRIPTION The SSM2143 is an integrated differential amplifier intended to receive balanced line inputs in audio applications requiring a high level of immunity from common-mode noise. The device provides a typical 90 dB of common-mode rejection (CMR), which is achieved by laser trimming of resistances to better than 0.005%. Additional features of the device include a slew rate of 10 V/ µs and wide bandwidth. Total harmonic distortion (THD) is less than 0.004% over the full audio band, even while driving low impedance loads. The SSM2143 input stage is designed to handle input signals as large as +28 dBu at G = 1/2. Although primarily intended for G = 1/2 applications, a gain of 2 can be realized by reversing the +IN/–IN and SENSE/REFERENCE connections. When configured for a gain of 1/2, the SSM2143 and SSM2142 Balanced Line Driver provide a fully integrated, unity gain solution to driving audio signals over long cable runs. For similar performance with G = 1, see SSM2141. A 781/461-3113 |
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