Dual Balanced Line Receiver ICs THAT 1280, 1283, 1286 FEATURES APPLICATIONS High CMRR: typ. 90 dB at 60Hz Balanced Audio Line Receivers Self-contained Excellent audio performance Instrumentation Amplifiers Wide bandwidth: typ. >7.6 MHz High slew rate: typ. 15 V/ s Differential Amplifiers Low distortion: typ. 0.0006% THD Low noise: typ. -104.5 dBu Low current: typ. 3 mA (per amplifier) Precision Summers Several gains: 0 dB, 3 dB, 6 dB Current Shunt Monitors Industry Standard Pinout Description The THAT 1280 series of precision differen- reliability, matching, and small size of a fully tial amplifiers was designed primarily for use as integrated solution. balanced line receivers for audio applications. All three versions of the part typically exhibit Gains of 0 dB, 3 dB, and 6 dB are available to 90 dB of common-mode rejection. With 15 V/ s suit various applications requirements. slew rate, 7.6 MHz or higher bandwidth, and 0.0006% THD, these devices are sonically trans- These devices are laser-trimmed in wafer parent. Moreover, current consumption is form to obtain the precision resistor matching typically a low 6 mA (3 mA per amplifier). needed for high CMR performance and precise gain. Manufactured in THAT Corporations The 1280 series is available in a 14-pin SOIC proprietary complementary dielectric isolation package. The 1280 is pin-compatible with the TI (DI) process, the 1280 series provides the sonic INA2134, and the 1286 is pin-compatible with benefits of discrete designs with the simplicity, the TI INA2137 and the ADI AD8273. Pin Name Pin Number Ref A Out A Sns A Vcc Sns B Out B Ref B N/C 1 14 13 12 11 10 9 8 IN- A 2 R 4 IN+ A 3 R R 2 2 R 4 V 4 EE IN+ B 5 R 3 R IN- B 6 1 R 3 R 1 N/C 7 REF B 8 12 34 5 6 7 OUT B 9 NC In- A In+ A Vee In+ B In- B NC SENSE B 10 V 11 CC Part No. Gain R &R R &R 1 3 2 4 SENSE A 12 THAT1280 0 dB THAT1283 -3 dB OUT A 13 THAT1286 -6 dB REF A 14 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 2007, THAT Corporation Document 600114 Rev 01Document 600114 Rev 01 Page 2 of 10 THAT 1280 Series Dual Balanced Line Receiver ICs 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 + VCC, 50V + VEE Operating Temperature Range (TOP) -40 to +85 C Max/Min Ref or Sense Voltage V + 0.5V, V - 0.5V Output Short-Circuit Duration (t ) Continuous CC EE SH 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 I -I No signal 6 8 mA CC EE Supply Voltage V -V 6 36 V CC EE Input Voltage Range V Differential (equal and opposite swing) IN-DIFF 1280 (0dB gain) 21.5 dBu 1283 (-3dB gain) 24.5 dBu 1286 (-6dB gain) 27.5 dBu V Common Mode IN-CM 1280 (0dB gain) 27.5 dBu 1283 (-3dB gain) 29.1 dBu 1286 (-6dB gain) 31 dBu 5 Input Impedance Z Differential IN-DIFF 1280 (0dB gain) 18 k 1283 (-3dB gain) 21 k 1286 (-6dB gain) 24 k Z Common Mode IN-CM All versions 18 k Common Mode Rejection Ratio CMRR Matched source impedances V = 10V CM DC 70 90 dB 60Hz 70 90 dB 20kHz 85 dB 6 Power Supply Rejection Ratio PSRR 3V to 18V V = -V all gains 90 dB CC EE Total Harmonic Distortion THD V = 5Vrms, f = 1kHz, BW = 22kHz, R = 2 k out L 0.0006 % Output Noise e 22 Hz to 22kHz bandwidth OUT 1280 (0dB gain) -104.5 dBu 1283 (-3dB gain) -105.9 dBu 1286 (-6dB gain) -107.3 dBu Slew Rate SR R = 2k C = 300 pF, all gains 10.5 15 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. While specific resistor ratios are very closely trimmed, absolute resistance values can vary 25% from the typical values show n. 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 2007, THAT Corporation