1/4 Structure : Silicon Monolithic Integrated Circuit Product : 3 Dual operational amplifier with switch for car audio systems Type : BA3131FS Function : 1. High gain and low distortion. (Gv = 110dB, THD = 0.0015% typ.) 2. Low noise. (Vn = 2Vrms typ.) 3. Switching circuit can be directly coupled to microcomputer port. 4. Small switching noise. 5. Equipped with 1/2 Vcc output circuit for single power supply. Absolute Maximum Ratings (Ta=25) Parameter Symbol Rating Unit Power supply voltage Vcc 18.0 V Power dissipation Pd 750* mW Operating temperature Topr 4085 Storage temperature Tastg 55125 Common-mode input voltage Vi 3Vcc V Differential input voltage Vid Vcc V Load current IoMax. 50.0 mA This value decreases 7.5 mW/ for Ta=25 or more. (When mounted on a glass epoxy board (90mm 50mm 1.6t)) Operating Voltage Range (Ta=25) Parameter Symbol Min. Typ. Max. Unit Conditions Single power Power supply voltage Vcc 6.0 8.0 16.0 V source Application example Note that ROHM cannot provide adequate confirmation of patents. The product described in this specification is designed to be used with ordinary electronic equipment or devices (such as audio-visual equipment, office-automation equipment, communications devices, electrical appliances, and electronic toys). Should you intend to use this product with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. REV. B 2/4 Electrical characteristics unless otherwise noted, Ta=25, Vcc=8V Limit Parameter Symbol Unit Conditions Min. Typ. Max. V 0,RL=,SW pin open Quiescent current Iq 2.0 4.9 7.8 mA IN RS10k Input offset voltage Vio 0.5 5.0 mV Input offset current Iio 5 200 nA 1 Input bias current Ib 50 500 nA RL2kVO=1.5V High-amplitude voltage gain Avol 86 110 dB Common-mode input voltage Vicm 3 6 V RS10k In-phase signal rejection ratio CMRR 60 72 dB Power supply voltage rejection ratio RS10k PSRR 76 90 dB RL10k 3 6 V Maximum output voltage V /V OH OL RL2k 3 6 V 2 Input conversion noise voltage Vn 2.0 4.0 Vrms Ioref=1mA Reference voltage change V 10 mV REF 0. 1 Because the first stage is configured with PNP transistors, input bias current is from the IC. 0. 2 Tested under the following conditions: Gv = 40dB, RS = 2k, Matsushita Tsuko VP-9690A (using DIN audio filter) Design guaranteed values unless otherwise noted, Ta=25, Vcc=8V Limit Parameter Symbol Unit Conditions Min. Typ. Max. Gv0dB,RL=2k Slew rate SR 0.5 1.2 V/S f10kHz Gainbandwidth product GBW 1.5 2.6 MHz f1kHz Crosstalk between A, B and C CT 60 73 dB ABC Gv0dBf1kHz Total harmonic distortion THD 0.0025 0.01 Vo1Vrms f1kHz,input conversion Channel separation CS 90 115 dB This item is not guaranteed during processes. Outline Dimension BA3131FS LOT No. SSOP-A20 Unitmm REV. B