LTC1441CS8 datasheet(4/16 Pages) LINER

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LTC1440/LTC1441/LTC1442

144012fc

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

temperature range, otherwise specifications are at TA = 25°C. V

+ = 3V and V– = GND = 0V unless otherwise noted.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply

V +

Supply Voltage Range

●

211

ICC

Supply Current

IN + = IN – + 80mV

LTC1440 0

°C ≤ TA ≤ 70°C

●

3.9

µA

HYST = REF (LTC1440/LTC1442)

–40

°C ≤ TA ≤ 85°C ●

4.3

µA

LTC1441

●

3.5

5.7

µA

LTC1442

●

3.5

5.7

µA

Comparator

VOS

Comparator Input Offset Voltage

VCM = 1.5V

●

±3

±10

IIN

Input Leakage Current (IN +, IN –)VIN+ = VIN– = 1.5V

●

±0.01

±1nA

Input Leakage Current (HYST)

●

±0.02

±1nA

VCM

Comparator Input Common

●

V –

V + – 1.3V

Mode Range

CMRR

Common Mode Rejection Ratio

V – to V + – 1.3V

0.1

mV/V

PSRR

Power Supply Rejection Ratio

V + = 2V to 11V (LTC1441)

0.1

mV/V

V + = 2.5V to 11V (LTC1440/LTC1442)

0.1

mV/V

NOISE

Voltage Noise

100Hz to 100kHz

100

µVRMS

VHYST

Hysteresis Input Voltage Range

LTC1440/LTC1442

● REF – 50mV

REF

tPD

Propagation Delay

COUT = 100pF

Overdrive = 10mV

µs

Overdrive = 100mV

µs

VOH

Output High Voltage

IO = – 8mA

●

V + – 0.4V

Comparator

VOL

Output Low Voltage

IO = 0.8mA

LTC1440

●

GND + 0.4V

LTC1441/LTC1442

●

V – + 0.4V

Reference

VREF

Reference Voltage

No Load

LTC1440/LTC1442

°C ≤ TA ≤ 70°C

●

1.170

1.182

1.194

–40

°C ≤ TA ≤ 85°C

●

1.164

1.200

LTC1440 (MSOP, DFN)

●

1.164

1.200

ISOURCE

Reference Output Source Current

∆VREF ≤ 1mV (LTC1442)

●

120

µA

ISINK

Reference Output Sink Current

∆VREF ≤ 2.5mV (LTC1442)

µA

∆VREF

Reference Source Current

≤ ISOURCE ≤ 1mA (LTC1440)

●

0.8

5.5

Reference Sink Current

≤ ISINK ≤ 10µA (LTC1440)

0.5

1.5

●

5mV

NOISE

Voltage Noise

100Hz to 100kHz

100

µVRMS

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