LMP8270 datasheet(2/5 Pages) NSC

Part #	LMP8270

Description	High Common Mode, Gain of 20, Precision Voltage Difference Amplifiers

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Manufacturer	NSC [National Semiconductor (TI)]

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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)

Human Body Model

For input pins only

±4000V

For All other pins

±2000V

Machine Model

200V

Supply Voltage (V

S - GND)

5.75V

CMVR Continuous

-5 to 42 Volts

Transient (300 ms)

-TBD to 45 Volts

Storage Temperature Range

-65˚C to +150˚C

Junction Temperature (Note 3)

+150˚C MAX

Soldering Information

Infrared or Convection (20 sec)

235˚C

Wave Soldering Lead Temp. (10

sec)

260˚C

Operating Ratings (Note 1)

Temperature Range (Note 3)

Packaged devices(Note 3)

-40˚C to +125˚C

Bare Die Junction Temperature(Note

3)

-40˚C to +150˚C

Supply Voltage (V

S –GND)

4.5V to 5.5V

Package Thermal Resistance (

θ

JA (Note 3))

8–Pin SOIC

190˚C/W

5V Electrical Characteristics (Note 7)

Unless otherwise specified, all limits guaranteed forT

A = 25˚C, VS = 5V, GND = 0, -2V

≤V

CM

≤27V. Boldface limits apply at the

temperature extremes.

Symbol

Parameter

Conditions

Min

Typ

(Note

4)

Max

Units

V

OS

Input Offset Voltage

V

CM = Vs/2

±0.25

1.0

mV

TC V

OS

Input Offset Voltage Drift

LMP8270

±6

±15

µV/˚C

TC V

OS

Input Offset Voltage Drift

LMP8275

±6

±30

µV/˚C

A2 I

B

Input Bias Current of A2

(Note 5)

±20

µA

I

S

Supply Current

0.6

TBD

1.0

1.2

TBD

mA

R

CM

Input impedance Common

Mode

160

200

240

K

Ω

R

DM

Input impedance Differential

Mode

320

400

480

K

Ω

CMVR

Input Common-Mode Voltage

Range

Continuous

-2

+27

V

ECMVR

Extended Common-Mode

Voltage Range

-5

36

V

DC

CMRR

DC Common Mode Rejection

Ratio

-2V

≤V

CM

≤ 27V

-5V

≤V

CM

≤ 36V

80

dB

AC

CMRR

AC Common Mode Rejection

Ratio

-2V

≤V

CM

≤ 27V

f = 1KHz

TBD

dB

-2V

≤V

CM

≤ 27V

f = 10KHz

TBD

PSRR

Power Supply Rejection Ratio

4.5V

≤V

S

≤ 5.5V

TBD

dB

R

F-INT

Filter Resistor

97

100

103

K

Ω

TCR

F-INT

Filter Resistor Drift

TBD

ppm/˚C

A

V

Total Gain

20

V/V

Gain Error

±1%

Gain Drift

±25

ppm/˚C

A1 V

OUT

A1 Output Voltage Swing

R

L= 100K

Ω on Output VOL

0.01

Volts

VOH

4.80

A2 V

OUT

A2 Output Voltage Swing

R

L= 100K

Ω on Output VOL

0.01

Volts

VOH

4.80

SR

Slew Rate (Note 6)

0.7

V/µs

BW

Bandwidth

80

KHz

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