National Semiconductor Electronic Components Datasheet

LMV982 Datasheet

1.8V / RRIO Operational Amplifiers with Shutdown

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December 2002

LMV981 Single / LMV982 Dual

1.8V, RRIO Operational Amplifiers with Shutdown

General Description

LMV981/LMV982 are low voltage, low power operational

amplifiers. LMV981/LMV982 are guaranteed to operate from

+1.8V to +5.0V supply voltages and have rail-to-rail input

and output. LMV981/LMV982 input common mode voltage

extends 200mV beyond the supplies which enables user

enhanced functionality beyond the supply voltage range.

The output can swing rail-to-rail unloaded and within 105mV

from the rail with 600Ω load at 1.8V supply. LMV981/

LMV982 are optimized to work at 1.8V which make them

ideal for portable two-cell battery powered systems and

single cell Li-Ion systems.

LMV981/LMV982 offer a shutdown pin that can be used to

disable the device and reduce the supply current. The device

is in shutdown when the SHDN-pin = low.

LMV981/LMV982 exhibit excellent speed-power ratio,

achieving 1.4MHz gain bandwidth product at 1.8V supply

voltage with very low supply current. LMV981/LMV982 are

capable of driving a 600Ω load and up to 1000pF capacitive

load with minimal ringing. LMV981/LMV982 have a high DC

gain of 101dB, making them suitable for low frequency ap-

plications.

LMV981 is offered in space saving 6-Bump micro SMD,

SC70-6 and SOT23-6 packages. The 6-Bump micro SMD

package has only a 1.006mm x 1.514mm x 0.945mm foot-

print. LMV982 is offered in space saving MSOP-10 package.

These small packages are ideal solutions for area con-

strained PC boards and portable electronics such as cellular

phones and PDAs.

Features

(Typical 1.8V Supply Values; Unless Otherwise Noted)

n Guaranteed 1.8V, 2.7V and 5V specifications

n Output swing

— w/600Ω load

80mV from rail

— w/2kΩ load

30mV from rail

n VCM

n Supply current (per channel)

200mV beyond rails

100µA

n Gain bandwidth product

1.4MHz

n Maximum VOS

n Gain w/600Ω load

4.0mV

101dB

n Ultra tiny package micro SMD

1.0mm x 1.5mm

n Turn-on time from shutdown

19µs

n Temperature range

−40˚C to 125˚C

Applications

n Industrial and automotive

n Consumer communication

n Consumer computing

n PDAs

n Portable audio

n Portable/battery-powered electronic equipment

n Supply current monitoring

n Battery monitoring

Typical Application

200214H0

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National Semiconductor Electronic Components Datasheet

LMV982 Datasheet

1.8V / RRIO Operational Amplifiers with Shutdown

No Preview Available !

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

ESD Tolerance (Note 2)

Machine Model

Human Body Model

Differential Input Voltage

Supply Voltage (V+–V −)

Output Short Circuit to V+ (Note 3)

Output Short Circuit to V− (Note 3)

Storage Temperature Range

Junction Temperature (Note 4)

200V

2000V

± Supply Voltage

5.5V

−65˚C to 150˚C

150˚C

Mounting Temp.

Infrared or Convection (20 sec)

235˚C

Operating Ratings (Note 1)

Supply Voltage Range

Temperature Range

Thermal Resistance (θJA)

6-Bump micro SMD

SC70-6

SOT23-6

MSOP-10

1.8V to 5.0V

−40˚C to 125˚C

286˚C/W

414˚C/W

265˚C/W

235˚C/W

1.8V DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ = 25˚C. V+ = 1.8V, V − = 0V, VCM = V+/2, VO = V+/2,

RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (Note 10).

Symbol

Parameter

Condition

Min Typ Max

(Note 6) (Note 5) (Note 6)

VOS Input Offset Voltage

LMV981 (Single)

LMV982 (Dual)

1 5.5

7.5

TCVOS

Input Offset Voltage Average

Drift

5.5

IB Input Bias Current

15 35

IOS Input Offset Current

13 25

IS Supply Current (per channel)

103 185

205

In Shutdown LMV981 (Single)

0.156

LMV982 (Dual)

0.178

3.5

CMRR

Common Mode Rejection

Ratio

LMV981, 0 ≤ VCM ≤ 0.6V

1.4V ≤ VCM ≤ 1.8V

(Note 8)

60 78

PSRR

Power Supply Rejection

LMV982, 0 ≤ VCM ≤ 0.6V

1.4V ≤ VCM ≤ 1.8V (Note 8)

−0.2V ≤ VCM ≤ 0V

1.8V ≤ VCM ≤ 2.0V

1.8V ≤ V+ ≤ 5V

55 76

50 72

75 100

Ratio

CMVR

Input Common-Mode Voltage

Range

For CMRR

Range ≥ 50dB

TA = 25˚C

TA = −40˚C to

85˚C

V− −0.2

V−

−0.2 to 2.1

V+ +0.2

V+

TA = 125˚C

V− +0.2

V+ −0.2

Units

µV/˚C

µA

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LMV982 Datasheet

1.8V / RRIO Operational Amplifiers with Shutdown

LMV982 Datasheet

1.8V / RRIO Operational Amplifiers with Shutdown

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