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Dual Balanced Line Receiver ICs
THAT 1280, 1283, 1286 FEATURES
• High CMRR: typ. 90 dB at 60Hz • Self-contained • Excellent audio performance – Wide bandwidth: typ. >7.6 MHz – High slew rate: typ. 15 V/μs – Low distortion: typ. 0.0006% THD – Low noise: typ. -104.5 dBu • Low current: typ. 3 mA (per amplifier) • Several gains: 0 dB, ±3 dB, ±6 dB • Industry Standard Pinout • Current Shunt Monitors • Instrumentation Amplifiers • Differential Amplifiers • Precision Summers
APPLICATIONS
• Balanced Audio Line Receivers
Description
The THAT 1280 series of precision differential amplifiers was designed primarily for use as balanced line receivers for audio applications. Gains of 0 dB, ±3 dB, and ±6 dB are available to suit various applications requirements. These devices are laser-trimmed in wafer form to obtain the precision resistor matching needed for high CMR performance and precise gain. Manufactured in THAT Corporation’s proprietary complementary dielectric isolation (DI) process, the 1280 series provides the sonic benefits of discrete designs with the simplicity, reliability, matching, and small size of a fully integrated solution. All three versions of the part typically exhibit 90 dB of common-mode rejection. With 15 V/μs slew rate, 7.6 MHz or higher bandwidth, and 0.0006% THD, these devices are sonically transparent. Moreover, current consumption is typically a low 6 mA (3 mA per amplifier). The 1280 series is available in a 14-pin SOIC package. The 1280 is pin-compatible with the TI INA2134, and the 1286 is pin-compatible with the TI INA2137 and the ADI AD8273.
Ref A Out A Sns A 14 13 R4 R2 12
Vcc 11
Sns B Out B Ref B 10 9 8
Pin Name N/C IN- A
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14
R2
R4
IN+ A VEE IN+ B
R3 R1 1 NC 2 In- A 3 In+ A 4 Vee
R1
R3
IN- B N/C
5 In+ B
6 In- B
7 NC
REF B OUT B SENSE B
Part No. THAT1280 THAT1283 THAT1286
Gain 0 dB -3 dB -6 dB
R1 & R3
R 2 & R4
VCC SENSE A OUT A REF A
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 01
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
Document 600114 Rev 01
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THAT 1280 Series Dual Balanced Line Receiver ICs
SPECIFICATIONS 1 Absolute Maximum Ratings 2,3
Supply Voltages (VCC - VEE) Maximum In- or In+ Voltage Max/Min Ref or Sense Voltage Maximum Output Voltage (VOM) 40V -50V + VCC, 50V + VEE VCC + 0.5V, VEE - 0.5V VCC + 0.5V, VEE - 0.5V Storage Temperature Range (TST) Operating Temperature Range (TOP) Output Short-Circuit Duration (tSH) Junction Temperature (TJ) -40 to +125 ºC -40 to +85 ºC Continuous +125 ºC
Electrical Characteristics 2,4
Parameter Supply Current Supply Voltage Input Voltage Range Symbol ICC; -IEE VCC-VEE VIN-DIFF Differential (equal and opposite swing) 1280 (0dB gain) 1283 (-3dB gain) 1286 (-6dB gain) Common Mode 1280 (0dB gain) 1283 (-3dB gain) 1286 (-6dB gain) Differential 1280 (0dB gain) 1283 (-3dB gain) 1286 (-6dB gain) Common Mode All versions Common Mode Rejection Ratio CMRR Matched source impedances; V CM = ±10V DC 60Hz 20kHz Power Supply Rejection Ratio6 Total Harmonic Distortion Output Noise PSRR THD eOUT ±3V to ±18V; VCC = -VEE; all gains 70 70 — — 90 90 85 90 — — — — dB dB dB dB — — — — 18 21 24 18 — — — — kΩ kΩ kΩ kΩ Conditions No signal Min — 6 — — — — — — Typ 6 — 21.5 24.5 27.5 27.5 29.1 31 Max 8 36 — — — — — — Units mA V dBu dBu dBu dBu dBu dBu
VIN-CM
Input Impedance5
ZIN-DIFF
ZIN-CM
Vout = 5Vrms, f = 1kHz, BW = 22kHz, R L = 2 kΩ — 22 Hz to 22kHz bandwidth 1280 (0dB gain) 1283 (-3dB gain) 1286 (-6dB gain) — — — 10.5
0.0006
—
%
-104.5 -105.9 -107.3 15
— — — —
dBu dBu dBu V/μs
Slew Rate
SR
RL = 2kΩ; CL = 300 pF, all gains
1. All specifications are subject to change without notice. 2. Unless otherwise noted, T A=25ºC, VCC=+15V, VEE= -15V. 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 conditions 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
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
THAT 1280 Series Dual Balanced Line Receiver ICs
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