SSM2141P Analog Devices

High Common-Mode Rejection a Differential Line Receiver SSM2141 FUNCTIONAL BLOCK DIAGRAM FEATURES High Common-Mode Rejection DC: 100 dB typ 25k 25k 60 Hz: 100 dB typ IN 2 5 SENSE 20 kHz: 70 dB typ +V 40 kHz: 62 dB typ 7 CC Low Distortion: 0.001% typ Fast Slew Rate: 9.5 V/ms typ SSM2141 6 OUTPUT Wide Bandwidth: 3 MHz typ Low Cost 4 V Complements SSM2142 Differential Line Driver EE 25k 25k APPLICATIONS +IN 3 1 REFERENCE Line Receivers Summing Amplifiers Buffer AmplifiersDrives 600 V Load PIN CONNECTIONS 8-Pin Plastic Mini-DIP (P Suffix) Narrow Body SO GENERAL DESCRIPTION (S Suffix) The SSM2141 is an integrated differential amplifier intended to receive balanced line inputs in audio applications requiring a REFERENCE 1 8 NC high level of noise immunity and optimum common-mode SSM2141 7 IN 2 V+ rejection. The SSM2141 typically achieves 100 dB of common- TOP VIEW 6 +IN 3 OUTPUT mode rejection (CMR), whereas implementing an op amp with (Not to Scale) 5 V 4 SENSE four off-the-shelf precision resistors will typically achieve only 40 dB of CMRinadequate for high-performance audio. NC = NO CONNECT The SSM2141 achieves low distortion performance by maintaining a large slew rate of 9.5 V/s and high open-loop gain. Distortion is less than 0.002% over the full audio bandwidth. The SSM2141 complements the SSM2142 balanced line driver. Together, these devices comprise a fully integrated solution for equivalent transformer balancing of audio signals without the problems of distortion, EMI fields, and high cost. Additional applications for the SSM2141 include summing signals, differential preamplifiers, and 600 low distortion buffer amplifiers. For similar performance with G = 1/2, see SSM2143. REV.C 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: 781/461-3113SSM2141SPECIFICATIONS ( V = 618 V, T = +258C, unless otherwise noted) ELECTRICAL CHARACTERISTICS S A SSM2141 Parameter Symbol Conditions Min Typ Max Units OFFSET VOLTAGE V V = 0 V 1000 25 1000 V OS CM GAIN ERROR No Load, V = 10 V, R = 0 0.001 0.01 % IN S INPUT VOLTAGE RANGE IVR (Note 1) 10 V COMMON-MODE REJECTION CMR V = 10 V 80 100 dB CM POWER SUPPLY REJECTION RATIO PSRR V = 6 V to 18 V 0.7 15 V/V S OUTPUT SWING V R = 2 k13 14.7 V O L SHORT-CIRCUIT CURRENT LIMIT I Output Shorted to Ground +45/15 mA SC SMALL-SIGNAL BANDWIDTH (3 dB) BW R = 2 k 3 MHz L SLEW RATE SR R = 2 k 6 9.5 V/s L TOTAL HARMONIC DISTORTION R = 100 k 0.001 % L THD R = 600 0.01 L CAPACITIVE LOAD DRIVE CAPABILITY C No Oscillation 300 pF L SUPPLY CURRENT I No Load 2.5 3.5 mA SY NOTES 1 Input Voltage Range Guaranteed by CMR test. Specifications subject to change without notice ( V = 618 V, 408C T +858C) ELECTRICAL CHARACTERISTICS S A Parameter Symbol Conditions Min Typ Max Units OFFSET VOLTAGE V V = 0 V 2500 200 2500 V OS CM GAIN ERROR No Load, V = 10 V, R = 0 0.002 0.02 % IN S INPUT VOLTAGE RANGE IVR (Note 1) 10 V COMMON-MODE REJECTION CMR V = 10 V 75 90 dB CM POWER SUPPLY REJECTION RATIO PSRR V = 6 V to 18 V 1.0 20 V/V S OUTPUT SWING V R = 2 k13 14.7 V O L SLEW RATE SR R = 2 k 9.5 V/s L SUPPLY CURRENT I No Load 2.6 4.0 mA SY NOTES 1 Input Voltage Range Guaranteed by CMR test. Specifications subject to change without notice C 2 REV.