LTC6702 datasheet(3/12 Pages) LINER

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LTC6702

6702fa

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

V+

Supply Voltage

Guaranteed by PSRR

1.7

5.5

I+

Supply Current per Comparator

V+ = 3V

μA

V+ = 5V

μA

VOS

Input Offset Voltage

(Note 5)

LTC6702C/LTC6702I

LTC6702H

3.5

VHYST

Input Hysteresis Voltage

(Note 5)

LTC6702C/LTC6702I

LTC6702H

2.5

1.6

4.3

6.2

7.2

8.2

ΔVOS/ΔT

Input Offset Voltage Drift

(Note 5)

μV/

°C

IIN

Input Leakage Current

LTC6702C/LTC6702I

LTC6702H

0.001

CMRR

Common Mode Rejection Ratio

VCM = –0.1V to VDD – 1.2V

Input Voltage Range

Guaranteed by CMRR

–0.1

VDD – 1.2

PSRR

Power Supply Rejection Ratio

V+ = 1.7V to 5.5V, VCM = 0.5V

VOL

Output Swing Low

Overdrive = 20mV (Note 6)

ISINK = 100μA

ISINK = 15mA

250

VOH

Output Swing High

Overdrive = 20mV (Note 6)

ISOURCE = 100μA

ISOURCE = 15mA

350

tPD

Propagation Delay

(Note 7)

320

450

500

ΔtPD

Differential Propagation Delay

Between Channels

tSKEW

Propagation Delay Skew

Between tPDLH/tPDHL

Output Rise Time

Output Fall Time

fMAX

Maximum Toggle Frequency

3.2

MHz

ISC

Short-Circuit Current

V + = 5V

±250

The l denotes the speciﬁcations which apply over the full speciﬁed

temperature range, otherwise speciﬁcations are at TA = 25°C. V+ = 3V, VCM = 1.5V, COUT = 20pF, 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.

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 comparators are shorted. The

θJA speciﬁed for the DC and

TS packages is with minimal PCB heat spreading metal. Using expanded

metal area on all layers of a board reduces this value.

Note 3: The LTC6702C and LTC6702I are guaranteed functional over

the temperature range of –40°C to 85°C. The LTC6702H is guaranteed

functional over the operating temperature range of –40°C to 125°C.

Note 4: The LTC6702C is guaranteed to meet speciﬁed performance from

0°C to 70°C. The LTC6702C is designed, characterized and expected to

meet speciﬁed performance from –40°C to 85°C but is not tested or

QA sampled at these temperatures. The LTC6702I is guaranteed to meet

speciﬁed performance from –40°C to 85°C. The LTC6702H is guaranteed

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

Note 5: The LTC6702 comparators include internal hysteresis. The offset

voltage is deﬁned as the average of the input voltages (trip points)

required to change the output in each direction minus VCM, while the

hysteresis voltage is the difference of these trip points.

Note 6: Output voltage swings are measured between the output and

power supply rails.

Note 7: Propagation delay is for 200mV steps, and 50mV of overdrive.

Overdrive is measured relative to the positive and negative trip points.

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