Dual comparators BA9 / BA9F / BA9N The BA9, BA9F, and BA9N are dual comparators with open-collector output which allows wired OR connections. The operating power supply voltage ranges from to 6V for a single power supply and ± to ± 8V for a dual power supply. The packages are as follows: DIP 8-pin (BA9), SOP 8-pin (BA9F), and SIP 8-pin (BA9N). Features ) Wide operating voltage range. (Single power supply: to 6V, dual power supply: ± to ± 8V) ) Low current dissipation. (.ma typ. at = V) ) Low input offset voltage. (na typ. at = V) and low input offset voltage. (typically ±.mv at = V) Block diagram OUT 8 IN IN ch ch 7 6 OUT IN ch ) Wide common-mode input voltage. ( to.v) ) Open collector output. 6) Compatible with 9 comparators from other manufacturers. BA9 / BA9F BA9N ch 6 7 8 IN OUT IN IN IN IN OUT
BA9 / BA9F / BA9N Internal circuit configuration IN OUT IN GND Absolute maximum ratings (Ta = C) Limits Parameter Symbol BA9 BA9F BA9N Unit Power supply voltage 6 ( ± 8) 6 ( ± 8) 6 ( ± 8) V Power dissipation Pd 8 9 mw Differential input voltage VID ± ± ± V Common-mode input voltage VI. ~. ~. ~ V Operating temperature Topr ~ 8 ~ 8 ~ 8 C Storage temperature Tstg ~ ~ ~ C Refer to the Pd characteristics diagram. The values for the BA9F are those when it is mounted on a glass epoxy PCB (mm mm.6mm). Electrical characteristics (unless otherwise noted, Ta = C, = V) Parameter Symbol Min. Typ. Max. Unit Conditions Input offset voltage VIO ± ± mv VO =.V Input offset current IIO ± ± na IIN IIN, VO =.V Input bias current IB na VO =.V Common-mode input voltage VICM. V Voltage gain AV 9 6 db RL = kω, = V Quiescent current IQ. ma RL =, on All Comparators Output sink current Isink 6 6 ma VIN = V, VIN = V, VO =.V Output saturation voltage VOL mv VIN = V, VIN = V, Isink = ma Output leakage current Ileak. na VIN = V, VIN = V,VO = V Response time tr. µs RL =.kω, VRL = V
BA9 / BA9F / BA9N Electrical characteristic curves POWER DISSIPATION: Pd (mw) BA9N 8 BA9 6 BA9F QUIESCENT CURRENT: IQ (ma)..8.6.. Ta = C RL = INPUT BIAS CURRENT: IB (na) Ta = C 7 8 AMBIENT TEMPERATURE: Ta ( C) Fig. Power dissipation vs. ambient temperature POWER SUPPLY VOLTAGE: V (V) Fig. Quiescent current vs. power supply voltage POWER SUPPLY VOLTAGE: V (V) Fig. Input bias current vs. power supply voltage SATURATION VOLTAGE: VOL (V).. Ta = C... OUTPUT VOLTAGE VO (V) INPUT VOLTAGE VIN (mv) mv mv mv = INPUT OVERDRIVE.... OUTPUT VOLTAGE VO (V) INPUT VOLTAGE VIN (mv) INPUT OVERDRIVE = mv mv mv.... OUTPUT SINK CURRENT: IO (ma) TIME (µs) TIME (µs) Fig. Output saturation voltage vs. output current Fig. Propagation characteristics (!) Fig. 6 Propagation characteristics (@)
BA9 / BA9F / BA9N Operation notes () Handling unused circuits If a circuit is not in use, we recommend connecting it as shown in Figure 7, so that its input is connected to the potential within the in-phase input voltage range (VICM) and the output is left open. To potential in VICM Open (no connected) Fig. 7 Example of unused circuit connection External dimensions (Units: mm) BA9 BA9F 9. ±.. ±.. ±.. ±..Min. 8 6. ±. 7.6.. ±. ~. ±. 6. ±.. ±... ±..7 8. ±..Min.. ±.. DIP8 SOP8 BA9N 9. ±..8 ±.. ±..8 ±.. ±.. 8..6. ±..8. SIP8
Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are 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 these products with equipment or devices which require an extremely high level of reliability and the malfunction of with 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. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex (Item 6) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix-Rev.