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LC7972 Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LC7972 Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 4 page Overview The LC7972VA and LC7972VB are dual inverting/noninverting operational amplifier ICs that are fabricated in a CMOS process. These ICs provide a programmable offset correction function and a power saving function for use when the operational amplifier is unused, both of which can be controlled from a microprocessor interface. Features • High input impedance provided by fabrication in a CMOS process. • Low power provided by fabrication in a CMOS process. • One of two types of operational amplifier can be selected: inverting (operational amplifier 1) or noninverting (operational amplifier 2) • Operating supply voltage: 4.9 to 5.2 V • Package: SSOP20 • Operating temperature: Ta = –30 to +70°C • The following modes are supported. These are selected via port level settings. Package Dimensions unit: mm 3179A-SSOP20 CMOS LSI Ordering number : EN5682 73097HA(OT) No. 5682-1/4 SANYO: SSOP20 [LC7972VA, VB] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN CMOS Operational Amplifier with Programmable Offset Correction Function LC7972VA, 7972VB Port Level Function OP1ON L Operational amplifier 1: Operation stopped (low-power mode) H Operational amplifier 1: Normal operation (OP2ON must be low in this mode.) OP2ON L Operational amplifier 2: Operation stopped (low-power mode) H Operational amplifier 2: Normal operation (OP1ON must be low in this mode.) OFST1 L Operational amplifier 1: Offset mode (inverting input = VSS) H Operational amplifier 1: Operating mode (inverting input = normal input) OFST2 L Operational amplifier 2: Offset mode (noninverting input = VSS) H Operational amplifier 2: Operating mode (noninverting input = normal input) CLKC L Operational amplifier power supply clock: Internal clock This catalog provides information as of July, 1997. Specifications and information herein are subject to change without notice. s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. |
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