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LT1492/LT1493

5MHz, 3V/

µs, Low Power

Single Supply, Dual and Quad

Precision Op Amps

The LT

ply precision op amps with 5MHz gain-bandwidth product,

3V/

µs slew rate and only 450µA of quiescent supply current

per amplifier.

With a maximum input offset voltage of only 180

µV, the

LT1492/LT1493 eliminate trims in most systems while pro-

viding high frequency performance not usually found in low

power single supply amplifiers.

The LT1492/LT1493 will operate on any supply greater than

2.5V and less than 36V total, and are specified on single 3.3V,

single 5V and

±15V supplies. Even with their low quiescent

supply current the minimum output drive is 20mA, ideal for

driving low impedance loads.

The inputs can be driven beyond the supplies without

damage or phase reversal of the output. The low operating

voltage and wide input and output range make the LT1492/

LT1493 amplifiers ideal for battery-powered applications.

For applications requiring faster precision single supply

amplifiers, see the 14MHz, 7V/

µs LT1211/LT1212, the

28MHz, 12V/

µs LT1213/LT1214 or the 23MHz, 50V/µs

LT1215/LT1216.

FEATURES

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Battery-Powered Systems

Portable Instrumentation

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Active Filters

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Photodiode Amplifiers

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DAC Current to Voltage Amplifiers

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Gain-Bandwidth Product: 5MHz Typ

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Slew Rate: 3V/

µs Typ

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Low Supply Current per Amplifier: 0.55mA Max

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Input Offset Voltage: 180

µV Max

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Input Offset Voltage Drift: 3

µV/°C Max

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Input Offset Current: 20nA Max

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Input Bias Current: 100nA Max

s

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Low Input Noise Voltage: 16.5nV/

√Hz

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Low Input Noise Current: 0.14pA/

√Hz

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Large Output Drive Current: 20mA Min

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Single Supply Operation

Input Voltage Range Includes Ground

Output Swings to Ground While Sinking Current

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Wide Supply Voltage Range: 2.5V to 36V

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Specified on 3.3V, 5V and

±15V

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Dual in 8-Pin PDIP and SO Package

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Quad in a Narrow 16-Pin SO Package

, LTC and LT are registered trademarks of Linear Technology Corporation.

Precision AC to DC Converter (Full Wave Rectifier and Filter)

–

+

+

< 1% ERROR FROM 100mV TO 1V, f = 1kHz

10% ERROR AT 10mV, f = 1kHz

1/2 LT1492

–

+

1/2 LT1492

5V

10k

10k

10k

4.99k

15k

6.49k

10

µF

1492/93 TA01

OFFSET VOLTAGE DRIFT WITH TEMPERATURE (

µV/°C)

– 2.5

30

40

50

1.5

1492/93 G02

20

10

0

–1.5

– 0.5

0.5

–2

2

–1

0

1

2.5

LT1492 N8, S8 PACKAGES

LT1493 S16 PACKAGE

Distribution of Offset Voltage

Drift with Temperature