Linear Technology LT1490CN8 Linear IC DIP8 Dual R-to-R I/O OA LT1490CN8 Data Sheet

4

LT1490/LT1491

V

OS

Input Offset Voltage

LT1490 N, S Package

250

1200

µ

V

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

1400

µ

V

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

1500

µ

V

LT1491 N Package

350

1250

µ

V

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

1500

µ

V

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

1600

µ

V

LT1490CMS8 Package, LT1491 S Package

400

1600

µ

V

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

1850

µ

V

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

1950

µ

V

V

OS

 TC

Input Offset Voltage Drift

0

°

C 

≤

 T

A

 

≤

 70

°

C (Note 7)

●

3

6

µ

V/

°

C

– 40

°

C 

≤

 T

A

 

≤

 85

°

C (Note 7)

●

3

6

µ

V/

°

C

I

OS

Input Offset Current

●

0.2

0.8

nA

I

B

Input Bias Current

●

4

8

nA

Input Noise Voltage

0.1Hz to 10Hz

1

µ

V

P-P

e

n

Input Noise Voltage Density

f = 1kHz

50

nV/

√

Hz

i

n

Input Noise Current Density

f = 1kHz

0.03

pA/

√

Hz

R

IN

Input Resistance

Differential

6

17

M

Ω

Common Mode, V

CM 

= – 15V to 14V

15000

M

Ω

C

IN

Input Capacitance

4.6

pF

Input Voltage Range

●

– 15

29

V

CMRR

Common Mode Rejection Ratio

V

CM 

= – 15V to 29V

●

80

98

dB

A

VOL

Large-Signal Voltage Gain

V

O

 = 

±

14V, R

L

 = 10k

100

250

V/mV

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

75

V/mV

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

50

V/mV

V

O

Output Voltage Swing

No Load

●

±

14.9

±

14.978

V

I

OUT

 = 

±

5mA

●

±

14.5

±

14.750

V

I

OUT

 = 

±

10mA

±

14.5

±

14.670

V

I

SC

Short-Circuit Current (Note 2)

Short to GND

±

20

±

25

mA

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

±

15

mA

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

±

10

mA

PSRR

Power Supply Rejection Ratio

V

S 

= 

±

1.25V to 

±

22V

●

88

98

dB

I

S

Supply Current per Amplifier

50

70

µ

A

●

85

µ

A

GBW

Gain Bandwidth Product

f = 1kHz

125

200

kHz

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

110

kHz

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

100

kHz

SR

Slew Rate

A

V 

= – 1, R

L

 = 

∞, 

V

O

 = 

±

10V,

0.0375

0.07

V/

µ

s

Measure at V

O

 = 

±

5V

0

°

C 

≤

 T

A

 

≤

 70

°

C

●

0.0330

V/

µ

s

– 40

°

C 

≤

 T

A

 

≤

 85

°

C

●

0.0300

V/

µ

s

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: V

S

 = 5V limits are guaranteed by correlation to V

S

 = 3V and

V

S

 = 

±

15V tests.

Note 5:  V

S

 = 3V limits are guaranteed by correlation to V

S

 = 5V and

V

S

 = 

±

15V tests.

Note 6:  Guaranteed by correlation to slew rate at V

S

 = 

±

15V and GBW

at V

S

 = 3V and V

S

 = 

±

15V tests.

Note 7:  This parameter is not 100% tested.

●

°

±