LMP7731 datasheet(5/26 Pages) TI

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LMP7731

www.ti.com

SNOSAT6E – JULY 2007 – REVISED MARCH 2013

3.3V Electrical Characteristics

(1) (continued)

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

+ = 3.3V, V− = 0V, V

CM = V

+/2, R

L > 10 kΩ to V

+/2. Boldface

limits apply at the temperature extremes.

Parameter

Test Conditions

Min (2)

Typ (3)

Max (2)

Units

GBW

Gain Bandwidth

CL = 20 pF, RL = 10 kΩ to V

+/2

MHz

Gain Margin

CL = 20 pF, RL = 10 kΩ to V

+/2

ΦM

Phase Margin

CL = 20 pF, RL = 10 kΩ to V

+/2

deg

Differential Mode

Ω

RIN

Input Resistance

Common Mode

151

Ω

THD+N

Total Harmonic Distortion + Noise

AV = 1, f = 1 kHz, Amplitude = 1V,

0.002

f = 1 kHz, VCM = 2.5V

2.9

Input Referred Voltage Noise

nV/

√Hz

Density

f = 1 kHz, VCM = 0.5V

2.9

Input Voltage Noise

0.1 Hz to 10 Hz

nVPP

f = 1 kHz, VCM = 2.5V

1.1

Input Referred Current Noise

pA/

√Hz

Density

f = 1 kHz, VCM = 0.5V

2.1

5V Electrical Characteristics

(1)

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

+ = 5V, V− = 0V, V

CM = V

+/2, R

L > 10 kΩ to V

+/2. Boldface

limits apply at the temperature extremes.

Parameter

Test Conditions

Min (2)

Typ (3)

Max (2)

Units

±500

VCM = 4.5V

±6

±600

Input Offset Voltage

VOS

μV

(4)

±500

VCM = 0.5V

±6

±600

VCM = 4.5V

±0.5

±5.5

Input Offset Voltage Temperature

TCVOS

μV/°C

Drift

VCM = 0.5V

±0.2

±5.5

±30

VCM = 4.5V

±1.5

±50

Input Bias Current

±50

VCM = 0.5V

±14

±85

±50

VCM = 4.5V

±1

±70

IOS

Input Offset Current

±65

VCM = 0.5V

±11

±80

TCIOS

Input Offset Current Drift

VCM = 0.5V and VCM = 4.5V

0.0482

nA/°C

0.15V

≤ VCM ≤ 0.7V

101

120

0.23V

≤ VCM ≤ 0.7V

CMRR

Common Mode Rejection Ratio

1.5V

≤ VCM ≤ 4.85V

105

130

1.5V

≤ VCM ≤ 4.77V

111

2.5V

≤ V+ ≤ 5V

129

105

PSRR

Power Supply Rejection Ratio

1.8V

≤ V+ ≤ 5.5V

117

CMVR

Common Mode Voltage Range

Large Signal CMRR

≥ 80 dB

RL = 10 kΩ to V

+/2

112

130

VOUT = 0.5V to 4.5V

104

AVOL

Open Loop Voltage Gain

RL = 2 kΩ to V

+/2

110

119

VOUT = 0.5V to 4.5V

(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 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 maybe 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 as determined 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)

Ambient production test is performed at 25°C with a variance of ±3°C.

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