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HT9274(14DIP) Datasheet

  • HT9274(14DIP)

  • Operational Amplifier

  • 7頁(yè)

  • ETC

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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 nega-
tive 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 op-
erational amplifier featuring high input imped-
ance, 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, es-
pecially 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/detec-
tor, and in car alarm systems, the HT9274 is ex-
cellent for piezo vibratile detector signal
amplifier application.
Comparison Table
Operating Operating
ITEM
Voltage
Current
HT9274
WT274
LM324
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
1
November 23, 1999

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