LP2901IQ1 datasheet(3/8 Pages) TI

3 / 8 page

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Recommended Operating Conditions

Electrical Characteristics

Switching Characteristics

LP2901-Q1

LOW-POWER QUAD DIFFERENTIAL COMPARATOR

SLCS148 – SEPTEMBER 2005

MIN

MAX

UNIT

VCC

Supply voltage

VCC = 5 V

VIC

Common-mode input voltage

VCC = 30 V

VCC = 5 V

Input voltage

VCC = 30 V

Operating free-air temperature

–40

°C

CC = 5 V, TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

TA(1)

MIN

TYP

MAX

UNIT

°C

±2

±5

VCC = 5 V to 30 V, VO = 2 V(2),

VIO

Input offset voltage

RS = 0

Full range

±9

°C

±0.5

±5

IIO

Input offset current

Full range

±1

±15

°C

–2.5

–25

IIB

Input bias current(3)

Full range

–4

–40

°C

0 to VCC – 1.5

Common-mode

VICR

Single supply

input voltage range

Full range

0 to VCC – 2

Large-signal differential

AVD

VCC = 15 V, RL = 15 kΩ

500

V/mV

voltage amplification

°C

VO = 2 V(4)

VI– = 1 V,

Output sink current

Full range

VI+ = 0

VO = 0.4 V

°C

0.2

0.7

VO = 5 V

°C

0.1

VI+ = 1 V,

Output leakage current

VI– = 0

VO = 30 V

Full range

µA

VID

Differential input voltage

VI ≤ 0 (or VCC– on split supplies)

ICC

Supply current

RL = ∞, All comparators

100

µA

(1)

Full range is –40

°C to 125°C.

(2)

VIO is measured over the full common-mode input voltage range.

(3)

Because of the p-n-p input stage, the direction of the current is out of the device. This current essentially is constant (i.e., independent of

the output state). No loading change exists on the reference or input lines as long as the common-mode input voltage range is not

exceeded.

(4)

The output sink current is a function of the output voltage. These devices have a bimodal output section that allows them to sink (via a

Darlington connection) large currents at output voltages greater than 1.5 V and smaller currents at output voltages less than 1.5 V.

CC = 5 V, TA = 25°C, RL connected to 5 V through 5.1 kΩ

PARAMETER

TEST CONDITIONS

TYP

UNIT

Large-signal response time

1.3

TTL logic swing, Vref = 1.4 V

µs

Response time

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