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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 ≤ 85°C, otherwise specifications are at TA = 25°C. VS = ±15V; VCM = 0V, VOUT = 0V unless otherwise noted. (Note 4)

SYMBOL PARAMETER

ISC

Short-Circuit Current (Note 2)

PSRR

IS

GBW

Power Supply Rejection Ratio

Supply Current per Amplifier

Gain Bandwidth Product

SR

Slew Rate

CONDITIONS

Short to GND

0°C ≤ TA ≤ 70°C

– 40°C ≤ TA ≤ 85°C

VS = ±1.25V to ±22V

f = 1kHz

0°C ≤ TA ≤ 70°C

– 40°C ≤ TA ≤ 85°C

AV = – 1, RL = ∞, VO = ±10V,

Measure at VO = ±5V

0°C ≤ TA ≤ 70°C

– 40°C ≤ TA ≤ 85°C

LT1490AC/LT1491AC

LT1490AI/LT1491AI

MIN

TYP

MAX

± 20

± 25

●

± 15

●

± 10

●

88

98

50

70

●

85

125

200

●

110

●

100

0.0375 0.07

● 0.0330

● 0.0300

UNITS

mA

mA

mA

dB

µA

µA

kHz

kHz

kHz

V/µs

V/µs

V/µs

The ● denotes specifications which apply over the full operating temperature range of – 40°C ≤ TA ≤ 125°C. VS = 3V, 0V; VS = 5V, 0V;

VCM = VOUT = half supply unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

LT1490AH/LT1491AH

MIN

TYP

MAX

UNITS

VOS

Input Offset Voltage (Note 5)

LT1490AHS8

LT1490AHMS8, LT1491AHS

110

500

µV

●

2500

µV

220

1000

µV

●

3000

µV

Input Offset Voltage Drift (Note 9)

●

3

6

µV/°C

IOS

Input Offset Current

IB

Input Bias Current

Input Voltage Range

VCM = 44V (Note 6)

VCM = 44V (Note 6)

●

●

●

●

●

0.3

2

nA

1.5

µA

20

nA

15

µA

44

V

CMRR

AVOL

Common Mode Rejection Ratio

(Note 6)

Large-Signal Voltage Gain

VCM = 0.3V to VCC –1V

VCM = 0.3V to 44V

VS = 3V, VO = 500mV to 2.5V, RL = 10k

●

60

●

74

200

1500

●

25

dB

dB

V/mV

V/MV

VS = 5V, VO = 500mV to 4.5V, RL = 10k

400

1500

●

50

V/mV

V/mV

VOL

VOH

PSRR

Output Voltage Swing Low

Output Voltage Swing High

Power Supply Rejection Ratio

Minimum Operating Supply Voltage

VS = 3V, No Load

VS = 3V, ISINK = 2.5mA

VS = 5V, No Load

VS = 5V, ISINK = 2.5mA

VS = 3V, No Load

VS = 3V, ISOURCE = 5mA

VS = 5V, No Load

VS = 5V, ISOURCE = 10mA

VS = 2.5V to 12.5V, VCM = VO = 1V

●

●

●

●

● 2.925

● 2.350

● 4.925

● 4.100

●

80

●

15

mV

450

mV

15

mV

500

mV

V

V

V

V

dB

2.5

V

Reverse Supply Voltage

IS = – 100µA per Amplifier

●

18

V

sn1490, 14901afbs

5

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