HT9274 datasheet(1/6 Pages) HOLTEK

Part #	HT9274

Description	Quad Micropower Op Amp

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT9274

Quad Micropower Op Amp

Comparison Table

ITEM Operating

Voltage

Operating

Current

Output

Source

Current

Output

Sink

Current

Input Bias

Current

GBW

Max. load

(To VDD

or VSS)

HT9274 1.6~5.5V

5mA

500mA

1pA

0.1MHz

>10kW

WT274

1.35~10V

9mA16mA

2mA

1pA

0.1MHz

>500kW

LM324

3~32V

400mA

20mA

8mA

45nA

1MHz

>2kW

1

November 23, 1999

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.

Features

·

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

·

Common mode input extends below nega-

tive rail

·

Pin compatible with LM324/WT274 (14-pin

DIP)

·

14-pin DIP/SOP package

Applications

·

Battery powered system

·

Sensor amplifier

·

Low power gain blocks

·

Low power comparators

·

Signal detectors

·

Active filters

·

Caller ID systems

·

Communication systems

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HT9274 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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