SSM2143SZ Analog Devices

6 dB Differential a Line Receiver SSM2143 FEATURES FUNCTIONAL BLOCK DIAGRAM High Common-Mode Rejection DC: 90 dB typ 60 Hz: 90 dB typ 12k 6k IN SENSE 20 kHz: 85 dB typ Ultralow THD: 0.0006% typ 1 kHz V+ Fast Slew Rate: 10 V/ms typ V OUT Wide Bandwidth: 7 MHz typ (G = 1/2) Two Gain Levels Available: G = 1/2 or 2 V Low Cost 12k 6k +IN REFERENCE SSM2143 PIN CONNECTIONS Epoxy Mini-DIP (P Suffix) GENERAL DESCRIPTION and The SSM2143 is an integrated differential amplifier intended to SOIC (S Suffix) 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), REF 1 8 NC which is achieved by laser trimming of resistances to better than IN 2 7 V+ SSM2143 0.005%. TOP VIEW VOUT +IN 3 6 (NOT TO SCALE) Additional features of the device include a slew rate of 10 V/s V SENSE 45 OP-482 and wide bandwidth. Total harmonic distortion (THD) is less than 0.004% over the full audio band, even while driving low NC = NO CONNECT 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. REV.A 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 617/329-4700 Fax: 781/461-3113(V = 615 V, 408C T +858C, G = 1/2, unless otherwise noted. S A SSM2143SPECIFICATIONS Typical specifications apply at T = +258C) A Parameter Symbol Conditions Min Typ Max Units AUDIO PERFORMANCE Total Harmonic Distortion Plus Noise THD+N V = 10 V rms, R = 10 k, f = 1 kHz 0.0006 % IN L Signal-to-Noise Ratio SNR 0 dBu = 0.775 V rms, 20 kHz BW, RTI 107.3 dBu Headroom HR Clip Point = 1% THD+N +28.0 dBu DYNAMIC RESPONSE Slew Rate SR R = 2 k, C = 200 pF 6 10 V/s L L Small Signal Bandwidth BW R = 2 k, C = 200 pF 3 dB L L G = 1/2 7 MHz G = 2 3.5 MHz INPUT Input Offset Voltage V V = 0 V, RTI, G = 2 1.2 0.05 +1.2 mV IOS CM Common-Mode Rejection CMR V = 10 V, RTO CM f = dc 70 90 dB f = 60 Hz 90 dB f = 20 kHz 85 dB f = 400 kHz 60 dB Power Supply Rejection PSR V = 6 V to 18 V 90 110 dB S Input Voltage Range IVR Common Mode 15 V Differential 28 V OUTPUT Output Voltage Swing V R = 2 k13 14 V O L Minimum Resistive Load Drive 2k Maximum Capacitive Load Drive 300 pF Short Circuit Current Limit I +45, 20 mA SC GAIN Gain Accuracy 0.1 0.03 0.1 % REFERENCE INPUT Input Resistance 18 k Voltage Range 10 V POWER SUPPLY Supply Voltage Range V 6 18 V S Supply Current I V = 0 V, R = 2.7 4.0 mA SY CM L Specifications subject to change without notice. ABSOLUTE MAXIMUM RATINGS Supply Voltage 18 V Common-Mode Input Voltage 22 V Differential Input Voltage . 44 V Output Short Circuit Duration .Continuous Operating Temperature Range 40C to +85C Storage Temperature Range 65C to +150C Junction Temperature (T ) +150C J Lead Temperature (Soldering, 60 sec) +300C Thermal Resistance 8-Pin Plastic DIP (P): = 103, = 43 . C/W JA JC 8-Pin SOIC (S): = 150, = 43 C/W JA JC A 2 REV.