SSM2142 Analog Devices, SSM2142 Datasheet
SSM2142
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SSM2142 Summary of contents
Page 1
... Excellent rejection of common-mode noise and offset errors is achieved by laser trimming of the onboard resistors, assuring high gain accuracy. The carefully designed output stage of the SSM2142 is capable of driving difficult loads, yielding low distortion performance despite extremely long cables or loads as low as 600 , and is stable over a wide range of operating conditions ...
Page 2
... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Operating Model Temperature Range SSM2142P – +85 C SSM2142S* – +85 C *For availability of SOIC package, contact your local sales office – noted. Typical characteristics apply to operation at T Symbol ...
Page 3
... ± –PSR 6 +PSR 10k 100k Figure 4. Maximum Output Voltage Swing vs. Frequency 6.5 6.0 5.5 5.0 4.5 4.0 3.5 ±14 ±18 Figure 6. Supply Current vs. Supply Voltage –3– SSM2142 300 300 600 3 +18V 6 4 –18V 5 V OUT SBR = 20 LOG +25° ±18V S R ...
Page 4
... The following data, taken from the THD test circuit on an Audio Precision System One using the internal 80 kHz noise filter, demonstrates the typical performance of a balanced pair system based on the SSM2142/SSM2141 chip set. Both dif- ferential and single-ended modes of operation are shown, under a number of output load conditions which simulate various application situations ...
Page 5
... SSM2141 be used at the receiving end for best system performance. The SSM2141 receiver output is configured for a gain of one half following the 6 dB gain of the SSM2142, in order to maintain an overall system gain of unity. In applications encountering a large dc offset on the cable or ...
Page 6
... The signal quality obtained in these systems is directly dependent on the quality of the ground at each end of the wire. Also note that in single-ended operation the gain through the device is still 6 dB, and that the SSM2142 incurs no significant degradation in signal distortion or output drive capability, although the noise rejection inherent in balanced- pair systems is lost ...