LPV321DBVRE4 datasheet(5/23 Pages) TI1

5 / 23 page

LPV321 SINGLE, LPV358 DUAL, LPV324 QUAD

GENERAL-PURPOSE, LOW-VOLTAGE, LOW-POWER, RAIL-TO-RAIL OUTPUT

OPERATIONAL AMPLIFIERS

SLOS433I − FEBRUARY 2004 − REVISED MARCH 2005

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

2.7-V electrical characteristics

TA = 25°C, VCC+ = 2.7 V, VCC− = 0 V, VIC = 1 V, VO = VCC+/2, and RL > 1 MΩ (unless otherwise

noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIO

Input offset voltage

1.2

αVIO

Average temperature

coefficient of

input offset voltage

mV/°C

IIB

Input bias current

1.7

IIO

Input offset current

0.6

CMRR

Common-mode

rejection ratio

≤ VIC ≤ 1.7 V

kSVR

Supply-voltage

rejection ratio

2.7 V

≤ VCC+ ≤ 5 V, VIC = 1 V, VO = 1 V

VICR

Common-mode

input voltage range

CMRR

≥ 50 dB

0 to 1.7

−0.2 to 1.9

Output swing

100 k

Ω to135V

High level

VCC+ − 0.100

VCC+ − 0.003

Output swing

RL = 100 kΩ to 1.35 V

Low level

0.080

0.180

LPV321

ICC

Supply current

LPV358 (both amplifiers)

ICC

Supply current

LPV324 (all four amplifiers)

Slew rate‡

0.1

GBW

Gain bandwidth product

CL = 22 pF (see Note 5)

205

kHz

Phase margin

CL = 22 pF (see Note 5)

deg

Gain margin

CL = 22 pF (see Note 5)

Equivalent input

noise voltage

f = 1 kHz

178

nV/

√Hz

Equivalent input

noise current

f = 1 kHz

0.5

pA/

√Hz

† All typical values are at VCC = 2.7 V, TA = 25°C.

‡ Number specified is the slower of the positive and negative slew rates.

NOTE 5: Closed-loop gain = 18 dB, VIC = VCC+/2

Not Recommended for New Designs

LPV321DBVRE4 数据表(PDF) 5 Page - Texas Instruments

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