Low Cost Dual Balanced Line Receiver ICs THAT 1290, 1293, 1296 FEATURES APPLICATIONS Good CMRR: typ. 50 dB at 60Hz Balanced Audio Line Receivers Low cost, self-contained, dual Excellent audio performance Instrumentation Amplifiers Wide bandwidth: typ. >7.6 MHz High slew rate: typ. 14 V/ s Differential Amplifiers Low distortion: typ. 0.0006% THD Low noise: typ. -104 dBu Precision Summers Low current: typ. 3 mA (per amplifier) Several gains: 0 dB, 3 dB, 6 dB Current Shunt Monitors Description The THAT 1290 series of precision differen- sonic benefits of discrete designs with the tial amplifiers was designed primarily for use as simplicity, reliability, matching, and small size of balanced line receivers for audio applications. a fully integrated solution. Gains of 0 dB, 3 dB, and 6 dB are available to All three versions of the part typically exhibit suit various applications requirements. 50 dB of common-mode rejection. With 14 V/ s These devices include on-board precision slew rate, 7.6 MHz or higher bandwidth, and thin-film resistors which offer good matching and 0.0006% THD, these devices are sonically trans- excellent tracking due to their monolithic parent. Moreover, current consumption is construction. Manufactured in THAT Corpora- typically a low 6 mA (3 mA per amplifier). tions proprietary complementary dielectric isola- The 1290 series is available in a 16-pin tion (DI) process, the 1290 series provides the QSOP package. Pin Name Pin Number Ref A Out A Sns A V Sns B Out B Ref B NC CC N/C 1 16 15 14 13 12 11 10 9 IN- A 2 IN+ A 3 R 4 R R 2 2 R VEE 4 4 IN+ B 5 IN- B 6 R 3 R 1 R N/C 7 3 R 1 N/C 8 N/C 9 12 34 5 6 7 8 REF B 10 In- A In+ A V In+ B In- B NC NC NC EE OUT B 11 SENSE B 12 Part No. Gain R & R R & R 1 3 2 4 VCC 13 THAT1290 0 dB SENSE A 14 THAT1293 -3 dB OUT A 15 THAT1296 -6 dB REF A 16 Figure 1. Equivalent circuit Table 1. Pin assignments THAT Corporation 45 Sumner Street Milford, MA 01757-1656 USA Tel: +1 508 478 9200 Fax: +1 508 478 0990 Web: www.thatcorp.com Copyright 2008, THAT Corporation Document 600121 Rev 01Document 600121 Rev 01 Page 2 of 10 THAT 1290 Series Low Cost Dual Balanced Line Receivers 1 SPECIFICATIONS 2,3 Absolute Maximum Ratings Supply Voltages (V - V)40V Storage Temperature Range (T ) -40 to +125 C CC EE ST Maximum In- or In+ Voltage -50V + V , +50V + V Operating Temperature Range (T ) -40 to +85 C CC EE OP Max/Min Ref or Sense Voltage VCC +0.5V, VEE -0.5V Output Short-Circuit Duration (tSH) Continuous Maximum Output Voltage (V)V +0.5V, V -0.5V Junction Temperature (T ) +125 C OM CC EE J 2,4 Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Supply Current ICC -IEE No signal 6 8 mA Supply Voltage V -V 6 36 V CC EE Input Voltage Range V Differential (equal and opposite swing) IN-DIFF 1290 (0dB gain) 21.5 dBu 1293 (-3dB gain) 24.5 dBu 1296 (-6dB gain) 27.5 dBu V Common Mode IN-CM 1290 (0dB gain) 27.5 dBu 1293 (-3dB gain) 29.1 dBu 1296 (-6dB gain) 31 dBu 5 Input Impedance ZIN-DIFF Differential 1290 (0dB gain) 18 k 1293 (-3dB gain) 21 k 1296 (-6dB gain) 24 k ZIN-CM Common Mode All versions 18 k Common Mode Rejection Ratio CMRR Matched source impedances DC, V = 10V 40 50 dB CM 60Hz 40 50 dB 20kHz 50 dB 6 Power Supply Rejection Ratio PSRR 3V to 18V VCC = -VEE all gains 90 dB Total Harmonic Distortion THD V = 5Vrms, f = 1kHz, BW = 22kHz, R = 2 k out L 0.0006 % Output Noise eOUT 22 Hz to 22kHz bandwidth 1290 (0dB gain) -104 dBu 1293 (-3dB gain) -105.5 dBu 1296 (-6dB gain) -107 dBu Slew Rate SR R = 2k C = 200 pF, all gains 14 V/s L L 1. All specifications are subject to change without notice. 2. Unless otherwise noted, T =25C, V =+15V, V = -15V. A CC EE 3. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only the functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not impli ed. Exposure to absolute maximum rating condi- tions for extended periods may affect device reliability. 4. 0 dBu = 0.775 Vrms. 5. Absolute resistance values can vary 30% from the typical values shown. Input impedance is monitored by lot sampling. 6. Defined with respect to differential gain. 7. Parameter guaranteed over the entire range of power supply and temperature. THAT Corporation 45 Sumner Street Milford, MA 01757-1656 USA Tel: +1 508 478 9200 Fax: +1 508 478 0990 Web: www.thatcorp.com Copyright 2008, THAT Corporation