LT1496 datasheet(1/16 Pages) LINER

Part #	LT1496

Description	1.5A Max, Single, Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps

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Manufacturer	LINER [Linear Technology]

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1

LT1494/LT1495/LT1496

TYPICAL APPLICATION

APPLICATIO S

FEATURES

1.5

µA Max, Single, Dual

and Quad Over-The-Top Precision

Rail-to-Rail Input and Output Op Amps

s

Low Supply Current: 1.5

µA Max

s

Rail-to-Rail Input and Output

s

Low Offset Voltage: 375

µV Max

s

Operating Temperature Range: – 40

°C to 125°C

s

Over-The-Top

TM Inputs Operate Above V+

s

Wide Supply Range: 2.2V to 36V

s

Single Supply Input Range: – 0.3V to 36V

s

Low Input Bias Current: 250pA

s

Low Input Offset Current: 20pA

s

High AVOL: 100V/mV Minimum Driving 100kΩ Load

s

Output Sources and Sinks 500

µA Load Current

s

Reverse Battery Protected to 18V

The LT

®1494/LT1495/LT1496 are the lowest power

(IS ≤ 1.5µA) op amps with precision specifications. The

extremely low supply current is combined with excellent

amplifier specifications: input offset voltage is 375

µV

maximum with a typical drift of only 0.4

µV/°C, input offset

current is 100pA maximum. A minimum open-loop gain

(AVOL) of 100V/mV ensures that gain errors are small. The

device characteristics change little over the supply range

of 2.2V to

±15V. Supply rejection is 90dB and the common

mode rejection ratio is 90dB. Operation is specified for 3V,

5V and

±15V supplies. Reverse battery protection

(–18V min) and inputs that operate above the positive

supply make the LT1494/LT1495/LT1496 easy to use in

harsh environments.

The low bias currents and offset current of the amplifier

permit the use of megohm level source resistors without

introducing significant errors. Voltage noise at 4

µVP-P is

remarkably low considering the low supply current.

The LT1494 is available in the 8-Pin MSOP, PDIP and SO

packages.The LT1495 is available in plastic 8-Pin PDIP

and SO packages with the standard dual op amp pinout.

The LT1496 is available in 14-Pin SO and PDIP packages.

s

Battery- or Solar-Powered Systems

s

Portable Instrumentation

s

Remote Sensor Amplifier

s

Micropower Filter

Micropower Integrating Current Sense

+

–

1/2 LT1495

0.1

µF

RESET

RI

1M

RS

0.1

Ω

LOAD

+

–

1/2 LT1495

IL

VCC

10M

VCC

VO

OUTPUT SWITCHES

WHEN ILdt = 0.98 VCC

IS = 3µA DURING INTEGRATION; IS = 5µA END OF INTEGRATION

C = (4.9A)(SEC) FOR VCC = 5V

RI

RS

()

1495 TA01

200k

TC VOS Distribution

TC VOS (µV/°C)

30

25

20

15

10

5

0

–1.2

–0.4

0.4

1.2

1495 TA02

2.0

–1.6

– 2.0

–0.8

0

0.8

1.6

100 AMPLIFIERS

VS = ±2.5V

–40

°C TO 85°C

DESCRIPTIO

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

Over-The-Top is a trademark of Linear Technology Corporation.

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