LMP2231

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SNOSB01E – JANUARY 2008 – REVISED MARCH 2013

1.8V DC Electrical Characteristics

(1)

Unless otherwise specified, all limits ensured for TA = 25°C, V

+ = 1.8V, V− = 0V, V

CM = VO = V

+/2, and R

L > 1 MΩ. Boldface

limits apply at the temperature extremes.

Symbol

Parameter

Conditions

Min(2)

Typ(3)

Max(2)

Units

VOS

Input Offset Voltage

±10

±230

μV

±325

TCVOS

Input Offset Voltage Drift

LMP2231A

±0.3

±0.4

μV/°C

LMP2231B

±0.3

±2.5

IBIAS

Input Bias Current

0.02

±1.0

pA

±50

IOS

Input Offset Current

5

fA

CMRR

Common Mode Rejection Ratio

0V

≤ VCM ≤ 0.8V

76

92

dB

75

PSRR

Power Supply Rejection Ratio

1.6V

≤ V+ ≤ 5.5V

83

120

dB

V− = 0V, VCM = 0V

83

CMRR

≥ 76 dB

−0.2

1.0

CMVR

Common Mode Voltage Rang

V

CMRR

≥ 75 dB

0

1.0

VO = 0.3V to 1.5V

103

AVOL

Large Signal Voltage Gain

120

dB

RL = 10 kΩ to V

+/2

103

VO

Output Swing High

RL = 10 kΩ to V

+/2

12

50

mV

VIN(diff) = 100 mV

50

from either

RL = 10 kΩ to V

+/2

50

rail

Output Swing Low

13

VIN(diff) = −100 mV

50

IO

Output Current (4)

Sourcing, VO to V

−

2.5

5

VIN(diff) = 100 mV

2

mA

Sinking, VO to V

+

2

5

VIN(diff) = −100 mV

1.5

IS

Supply Current

10

14

µA

15

(1)

Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very

limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical

tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond

which the device may be permanently degraded, either mechanically or electrically.

(2)

All limits are specified by testing, statistical analysis or design.

(3)

Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and

will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production

material.

(4)

The short circuit test is a momentary open loop test.

1.8V AC Electrical Characteristics

(1)

Unless otherwise is specified, all limits ensured for TA = 25°C, V

+ = 1.8V, V− = 0V, V

CM = VO = V

+/2, and R

L > 1 MΩ. Boldface

limits apply at the temperature extremes.

Symbol

Parameter

Conditions

Min(2)

Typ(3)

Max(2)

Units

GBW

Gain-Bandwidth Product

CL = 20 pF, RL = 10 kΩ

127

kHz

SR

Slew Rate

AV = +1, CL = 20 pF Falling Edge

58

V/ms

RL = 10 kΩ

Rising Edge

48

θ m

Phase Margin

CL = 20 pF, RL = 10 kΩ

70

deg

Gm

Gain Margin

CL = 20 pF, RL = 10 kΩ

25

dB

en

Input-Referred Voltage Noise Density

f = 1 kHz

60

nV/

√Hz

Input-Referred Voltage Noise

0.1 Hz to 10 Hz

2.4

μVPP

(1)

Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very

limited self-heating of the device such that TJ = TA. No ensured specification of parametric performance is indicated in the electrical

tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond

which the device may be permanently degraded, either mechanically or electrically.

(2)

All limits are specified by testing, statistical analysis or design.

(3)

Typical values represent the most likely parametric norm at the time of characterization. Actual typical values may vary over time and

will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production

material.

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