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Details, datasheet, quote on part number:HT9274
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| Part: | HT9274 |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => Low Power => Quad |
| Description: | Quad Micropower Operational Amplifier |
| Company: | Holtek Semiconductor Inc. |
| Datasheet: | Download HT9274 datasheet File size : 200 kB |
| Request For quote: | Find where to buy HT9274
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Datasheet text preview:
HT9274 Quad Micropower Op Amp
Features
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Quad micro power op amp Wide range of supply voltage: 1.6V~5.5V High input impedance Single supply operation Low current consumption: < 5mA per amp Rail to rail output Provides both sink and source output drive capability
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Common mode input extends below negative rail Pin compatible with LM324/WT274 (14-pin DIP) 14-pin DIP/SOP package
Applications
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Battery powered system Sensor amplifier Low power gain blocks Low power comparators
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Signal detectors Active filters Caller ID systems Communication systems
General Description
The HT9274 is a CMOS quad micro-power operational amplifier featuring high input impedance, extremely low power, high gain and high stability. It allows common mode input voltage range which extends below the negative rail, output swings to both rails with a reasonable sink and souce capability of the output drive current. This cost-effective device is suitable for high gain, low frequency, low power applications, especially ideal for battery powered systems where mA range of standby current is essential for long battery life span. For example, in multi-standard Caller ID systems, HT9274 is ideal as a low power line signal monitor/detector, and in car alarm systems, the HT9274 is excellent for piezo vibratile detector signal amplifier application.
Comparison Table
ITEM HT9274 WT274 LM324 Operating Operating Voltage Current 1.6~5.5V 1.35~10V 3~32V 5mA 9mA 400mA Output Source Current 500mA 16mA 20mA Output Sink Current 500mA 2mA 8mA Input Bias Current 1pA 1pA 45nA GBW 0.1MHz 0.1MHz 1MHz Max. load (To VDD or VSS) >10kW >500kW >2kW
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November 23, 1999
HT9274
Block Diagram
1O U T 1 IN 1 IN + VDD 2 IN + 2 IN 2O U T 4O U T 4 IN 4 IN + VSS 3 IN + 3 IN 3O U T
Pin Assignment
1O UT 1 2 3 4 5 6 7 8 1 IN 1 IN + VDD 2 IN + 2 IN 2O UT 14 13 12 11 10 9 4O UT 4 IN 4 IN + VSS 3 IN + 3 IN 3O UT
HT9274 1 4 D IP /S O P
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November 23, 1999
HT9274
Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin Name 1OUT 1IN1IN+ VDD 2IN+ 2IN2OUT 3OUT 3IN3IN+ VSS 4IN+ 4IN4OUT I/O O I I ¾ I I O O I I ¾ I I O Internal Connection CMOS OUT PMOS IN PMOS IN ¾ PMOS IN PMOS IN CMOS OUT CMOS OUT PMOS IN PMOS IN ¾ PMOS IN PMOS IN CMOS OUT Description Output pin of the op amp 1 Inverting input pin of the op amp 1 Noninverting input pin of the op amp 1 Positive power supply Noninverting input pin of the op amp 2 Inverting input pin of the op amp 2 Output pin of the op amp 2 Output pin of the op amp 3 Inverting input pin of the op amp 3 Noninverting input pin of the op amp 3 Negative power supply Noninverting input pin of the op amp 4 Inverting input pin of the op amp 4 Output pin of the op amp 4
Absolute Maximum Ratings
Supply Voltage .........-0.3V to 6V Input Voltage ........VSS-0.3V to VDD+0.3V Storage Temperature........-50°C to 125°C Operating Temperature .....-20°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
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November 23, 1999
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