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LT1490A
(Rev.:RevB)

Dual/Quad Over-The-Top Micropower Rail-to-Rail Input and Output Op Amps

Linear Technology 

LT1490A/LT1491A

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

range of – 40°C ≤ TA ≤ 125°C. VS = ±15V, VCM = 0V, VOUT = 0V unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

IS

Supply Current per Amplifier (Note 7)

GBW

Gain Bandwidth Product (Note 6) f = 1kHz

SR

Slew Rate (Note 8)

AV = – 1, RL = ∞

LT1490AH/LT1491AH

MIN

TYP

MAX

40

50

●

70

110

180

●

60

0.035 0.06

● 0.015

UNITS

µA

µA

kHz

kHz

V/µs

V/µs

VOS

IOS

IB

CMRR

AVOL

VO

PSRR

IS

GBW

SR

Input Offset Voltage (Note 5)

Input Offset Voltage Drift (Note 9)

Input Offset Current

Input Bias Current

Input Voltage Range

Common Mode Rejection Ratio

Large-Signal Voltage Gain

Output Voltage Swing

Power Supply Rejection Ratio

Supply Current per Amplifier

Gain Bandwidth Product

Slew Rate

LT1490AHS8

LT1490AHMS8, LT1491AHS

VCM = –14.7V to 29V

VO = ±14V, RL = 10k

No Load

IOUT = ±2.5mA

VS = ±1.25V to ±22V

f = 1kHz

AV = – 1, RL = ∞

150

700

●

2700

250

1200

●

3200

●

3

7

●

2

●

20

● –14.7

29

●

72

100

250

●

4

● ±14.8

● ±14.3

●

84

50

70

●

95

125

200

●

75

0.0375 0.07

● 0.02

µV

µV

µV

µV

µV/°C

nA

nA

V

dB

V/mV

V/mV

mV

mV

dB

µA

µA

kHz

kHz

V/µs

V/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. The θJA specified for the DD and DHC

package is with minimal PCB heat spreading metal. Using expanded metal

area on all layers of a board reduces this value.

Note 3: The LT1490AC/LT1491AC and LT1490AI/LT1491AI are guaranteed

functional over the operating temperature range of – 40°C to 85°C. The

LT1490AH/LT1491AH are guaranteed functional over the operating

temperature range of – 40°C to 125°C.

Note 4: The LT1490AC/LT1491AC are guaranteed to meet specified

performance from 0°C to 70°C. The LT1490AC/LT1491AC 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

LT1490AI/LT1491AI are guaranteed to meet specified performance from

–40°C to 85°C. The LT1490AH/LT1491AH are guaranteed to meet

specified performance from – 40°C to 125°C.

Note 5: ESD (Electrostatic Discharge) sensitive device. Extensive use of

ESD protection devices are used internal to the LT1490A/LT1491A.

However, high electrostatic discharge can damage or degrade the device.

Use proper ESD handling precautions.

Note 6: VS = 5V limits are guaranteed by correlation to VS = 3V and

VS = ±15V tests.

Note 7: VS = 3V limits are guaranteed by correlation to VS = 5V and

VS = ±15V tests.

Note 8: Guaranteed by correlation to slew rate at VS = ±15V and GBW

at VS = 3V and VS = ±15V tests.

Note 9: This parameter is not 100% tested.

6

sn1490, 14901afbs

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