Texas Instruments LMV321A Handleiding

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LMV3xxA Low-Voltage Rail-to-Rail Output Operational Amplifiers

1 Features

•Low input offset voltage: ±1mV

•Rail-to-rail output

•Unity-gain bandwidth: 1MHz

•Low broadband noise: 30nV/√ Hz

•Low input bias current: 10pA

•Low quiescent current: 70µA/Ch

•Unity-gain stable

•Internal RFI and EMI filter

•Operational at supply voltages as low as 2.5V

•Easier to stabilize with higher capacitive load due

to resistive open-loop output impedance

•Extended temperature range: –40°C to 125°C

2 Applications

•Smoke detectors

•Motion detectors

•Wearable devices

•Large and small appliances

•EPOS

•Barcode scanners

•Sensor signal conditioning

•Power modules

•Personal electronics

•Active filters

•HVAC: heating, ventilating, and air conditioning

•Motor control: AC induction

•Low-side current sensing

3 Description

The LMV3xxA family includes single (LMV321A),

dual (LMV358A), and quad-channel (LMV324A) low-

voltage (2.5V to 5.5V) operational amplifiers (op

amps) with rail-to-rail output swing capabilities. These

op amps provide a cost-effective solution for space-

constrained applications such as large appliances,

smoke detectors, and personal electronics where low-

voltage operation and high capacitive-load drive are

required. The capacitive-load drive of the LMV3xxA

family is 500pF, and the resistive open-loop output

impedance makes stabilization easier with much

higher capacitive loads. These op amps are designed

specifically for low-voltage operation (2.5V to 5.5V)

with performance specifications similar to the LMV3xx

devices.

The robust design of the LMV3xxA family simplifies

circuit design. The op amps feature unity-gain

stability, an integrated RFI and EMI rejection filter, and

no-phase reversal in overdrive conditions.

The LMV3xxA family is available in industry-standard

packages such as SOIC, MSOP, SOT-23, and TSSOP

packages.

Package Information

PART NUMBERPACKAGE

(1)

PACAKGE SIZE

(2)

LMV321A

DBV (SOT-23, 5)2.9mm × 2.8mm

DCK (SC70, 5)2mm × 2.1mm

LMV358A

D (SOIC, 8)4.9mm × 6mm

DGK (VSSOP, 8)3mm × 4.9mm

PW (TSSOP, 8)3mm × 6.4mm

DDF (SOT-23, 8)2.9mm × 2.8mm

LMV324A

D (SOIC, 14)8.65mm × 6mm

DYY (SOT-23, 14)4.2mm × 3.26mm

PW (TSSOP, 14)5mm × 6.4mm

(1)For all available packages, see Section 10.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

R

G

R

F

R

1

C

1

V

IN

V

OUT

= 1 +

V

V

OUT

IN

R

R

F

G

1

1 + sRC

11

((

((

1

2pRC

11

f=

-3dB

Single-Pole, Low-Pass Filter

LMV321A, LMV358A, LMV324A

SBOS923I – DECEMBER 2017 – REVISED JULY 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties