Low Cost, Balanced Line Receiver ICs THAT 1250, 1253, 1256 FEATURES APPLICATIONS Good CMRR: typ. 50 dB at 60Hz Balanced Audio Line Receivers Low cost, self-contained Excellent audio performance Instrumentation Amplifiers Wide bandwidth: typ. >8.6 MHz High slew rate: typ. 12 V/ s Differential Amplifiers Low distortion: typ. 0.0006% THD Low noise: typ. -103 dBu Low current: typ. 2 mA Precision Summers Several gains: 0 dB, 3 dB, 6 dB Industry Standard Pinout Current Shunt Monitors Description The THAT 1250-series of precision differential discrete designs with the simplicity, reliability, matching and small size of an integrated solution. amplifiers was designed primarily for use as balanced line receivers for audio applications. Gains of 0 db, 3 All three versions of the part typically exhibit 50 dB, and 6 dB are available to suit various applications dB of common-mode rejection. With 12 V/s slew rate, >8.6 MHz bandwidth, and 0.0006% THD, these requirements. devices are sonically transparent. Moreover, current consumption is typically a low 2 mA. Both surface- These devices include on-board precision thin- mount and DIP packages are available. film resistors which offer good matching and excellent tracking due to their monolithic construction. The THAT 1256 is pin-compatible with the TI Manufactured in THAT Corporations proprietary INA137 and Analog Devices SSM2143, while the THAT complementary dielectric isolation (DI) process, the 1250 is pin-compatible with the TI INA134 and Analog THAT 1250-series provides the sonic benefits of Devices SSM2141. Pin Name DIP Pin SO Pin Vcc Ref 1 1 In- 2 2 In- Sense In+ 3 3 R R 1 2 Vee 4 4 Sense 5 5 Vout Vout 6 6 R R Vcc 7 7 3 4 In+ Ref NC 8 8 Table 1. 1250-series pin assignments Vee NC Part no. Gain R , R R , R Gain Plastic DIP Plastic SO 1 3 2 4 THAT1250 0 dB 0 dB 1250P08-U 1250S08-U THAT1253 -3 dB 3 dB 1253P08-U 1253S08-U THAT1256 -6 dB 6 dB 1256P08-U 1256S08-U Table 2. Ordering information Figure 1. THAT 1250-series equivalent circuit diagram 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 2015, THAT Corporation Document 600068 Rev 03Document 600068 Rev 03 Page 2 of 8 THAT 1250 Series Low-cost 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 + V , 50V + V Operating Temperature Range (T ) 0 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 No signal 2.0 2.8 mA Supply Voltage V -V 7 36 V CC EE Input Voltage Range V Differential (equal and opposite swing) IN-DIFF 1250 (0dB gain) 21.5 dBu 1253 (-3dB gain) 24.4 dBu 1256 (-6dB gain) 27.5 dBu V Common Mode IN-CM 1250 (0dB gain) 27.5 dBu 1253 (-3dB gain) 29.1 dBu 1256 (-6dB gain) 31 dBu 5 Input Impedance ZIN-DIFF Differential 1250 (0dB gain) 18 k 1253 (-3dB gain) 21 k 1256 (-6dB gain) 24 k ZIN-CM Common Mode All versions 18 k 6 Common Mode Rejection Ratio CMRR Matched source impedances V = 10V CM DC 40 50 dB 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 = 10dBV, f = 1kHz, BW = 22kHz, R = 2 k IN DIFF L 0.0006 % Output Noise eOUT 22 Hz to 22kHz bandwidth 1250 (0dB gain) -103 dBu 1253 (-3dB gain) -105 dBu 1256 (-6dB gain) -106 dBu Slew Rate SR R = 2k C = 300 pF, all gains 12 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 2015, THAT Corporation All rights reserved.