6

LT1490A/LT1491A

sn1490, 14901afbs

LT1490AH/LT1491AH

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Current per Amplifier (Note 7)

40

50

µA

●

70

µA

GBW

Gain Bandwidth Product (Note 6)

f = 1kHz

110

180

kHz

●

60

kHz

SR

Slew Rate (Note 8)

0.035

0.06

V/

µs

●

0.015

V/

µs

Input Offset Voltage (Note 5)

LT1490AHS8

150

700

µV

●

2700

µV

LT1490AHMS8, LT1491AHS

250

1200

µV

●

3200

µV

Input Offset Voltage Drift (Note 9)

●

37

µV/°C

Input Offset Current

●

2nA

Input Bias Current

●

20

nA

Input Voltage Range

●

–14.7

29

V

CMRR

Common Mode Rejection Ratio

●

72

dB

Large-Signal Voltage Gain

100

250

V/mV

●

4V/mV

Output Voltage Swing

No Load

●

±14.8

mV

●

±14.3

mV

PSRR

Power Supply Rejection Ratio

●

84

dB

Supply Current per Amplifier

50

70

µA

●

95

µA

GBW

Gain Bandwidth Product

f = 1kHz

125

200

kHz

●

75

kHz

SR

Slew Rate

0.0375

0.07

V/

µs

●

0.02

V/

µs

range of – 40

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

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 9: This parameter is not 100% tested.