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LT1490/LT1491

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOS

Input Offset Voltage

LT1490 N, S Package

250

1200

µV

°C ≤ TA ≤ 70°C

1400

µV

–40

°C ≤ TA ≤ 85°C

1500

µV

LT1491 N Package

350

1250

µV

°C ≤ TA ≤ 70°C

1500

µV

–40

°C ≤ TA ≤ 85°C

1600

µV

LT1490CMS8 Package, LT1491 S Package

400

1600

µV

°C ≤ TA ≤ 70°C

1850

µV

–40

°C ≤ TA ≤ 85°C

1950

µV

VOS TC

Input Offset Voltage Drift

°C ≤ TA ≤ 70°C (Note 7)

µV/°C

–40

°C ≤ TA ≤ 85°C (Note 7)

µV/°C

IOS

Input Offset Current

0.2

0.8

Input Bias Current

Input Noise Voltage

0.1Hz to 10Hz

µVP-P

Input Noise Voltage Density

f = 1kHz

nV/

√Hz

Input Noise Current Density

f = 1kHz

0.03

pA/

√Hz

RIN

Input Resistance

Differential

Ω

Common Mode, VCM = – 15V to 14V

15000

Ω

CIN

Input Capacitance

4.6

Input Voltage Range

–15

CMRR

Common Mode Rejection Ratio

VCM = – 15V to 29V

AVOL

Large-Signal Voltage Gain

VO = ±14V, RL = 10k

100

250

V/mV

°C ≤ TA ≤ 70°C

V/mV

–40

°C ≤ TA ≤ 85°C

V/mV

Output Voltage Swing

No Load

±14.9

±14.978

IOUT = ±5mA

±14.5

±14.750

IOUT = ±10mA

±14.5

±14.670

ISC

Short-Circuit Current (Note 2)

Short to GND

±20

±25

°C ≤ TA ≤ 70°C

±15

–40

°C ≤ TA ≤ 85°C

±10

PSRR

Power Supply Rejection Ratio

VS = ±1.25V to ±22V

Supply Current per Amplifier

µA

GBW

Gain Bandwidth Product

f = 1kHz

125

200

kHz

°C ≤ TA ≤ 70°C

110

kHz

–40

°C ≤ TA ≤ 85°C

100

kHz

Slew Rate

AV = – 1, RL = ∞, VO = ±10V,

0.0375

0.07

µs

Measure at VO = ±5V

°C ≤ TA ≤ 70°C

0.0330

µs

–40

°C ≤ TA ≤ 85°C

0.0300

µs

Note 1: Absolute Maximum Ratings are those values beyond which the

life of the device may be impaired.

Note 2: A heat sink may be required to keep the junction temperature

below absolute maximum. This depends on the power supply voltage

and how many amplifiers are shorted.

Note 3: The LT1490C/LT1491C are guaranteed to meet specified

performance from 0

°C to 70°C. The LT1490C/LT1491C are designed,

characterized and expected to meet specified performance from – 40

°C

to 85

°C but are not tested or QA sampled at these temperatures.

The LT1490I/LT1491I are guaranteed to meet specified performance from

–40

°C to 85°C.

Note 4: VS = 5V limits are guaranteed by correlation to VS = 3V and

VS = ±15V tests.

Note 5: VS = 3V limits are guaranteed by correlation to VS = 5V and

VS = ±15V tests.

Note 6: Guaranteed by correlation to slew rate at VS = ±15V and GBW

at VS = 3V and VS = ±15V tests.

Note 7: This parameter is not 100% tested.

ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = 0V, VOUT = 0V, unless otherwise noted. (Note 3)

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