5.7 Electrical Characteristics

For VS = (V+) – (V–) = 1.5V to 5.5V (±0.75V to ±2.75V) at TA = 25°C, RL = 10kΩ connected to VS / 2, VCM = VS / 2, and VO UT

= VS / 2, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

VOS

Input offset voltage

VCM = V–

±0.25

±1.3

mV

VCM = V–

TA = –40°C to 125°C

±1.4

dVOS/dT

Input offset voltage

drift

VCM = V–

TA = –40°C to 125°C

±0.5

µV/

℃

PSRR

Input offset voltage

versus power supply

VS = 1.5V to 5.5V , VCM = V–

±10

±50

µV/V

Channel separation

f = 10kHz

±1

µV/V

INPUT BIAS CURRENT

IB

Input bias current (1)

VS = 1.8V and VS = 5V

±1

±30

pA

IOS

Input offset current (1)

VS = 1.8V and VS = 5V

±0.5

±25

pA

NOISE

EN

Input voltage noise

f = 0.1 to 10Hz

4

μVPP

eN

Input voltage noise

density

f = 100Hz

32

nV/√Hz

f = 1kHz

16

f = 10kHz

13

iN

Input current noise (3)

f = 1kHz

10

fA/√Hz

INPUT VOLTAGE RANGE

VCM

Common-mode

voltage range (1)

VS = 1.8V

TA = –40°C to 125°C

(V–)

(V+)

V

Common-mode

voltage range (1)

VS = 5.5V

TA = –40°C to 125°C

(V–) – 0.1

(V+) + 0.1

V

CMRR

Common-mode

rejection ratio

VS = 1.8V, (V–) ≤ VCM ≤ (V+) – 0.6V

75

85

dB

VS = 1.8V, (V–) ≤ VCM ≤ (V+) – 0.6V

TA = –40°C to 125°C

65

78

dB

VS = 5.5V, (V–) ≤ VCM ≤ (V+) – 0.6V

83

95

dB

VS = 5.5V, (V–) ≤ VCM ≤ (V+) – 0.6V

TA = –40°C to 125°C

75

85

dB

Full Range: VS = 1.8V, (V–) ≤ VCM ≤ (V+)

TA = –40°C to 125°C

57.5

70

Full Range: VS = 5.5V

(V–) – 0.1V ≤ VCM ≤ (V+) + 0.1V

TA = –40°C to 125°C

66.5

80

INPUT IMPEDANCE

ZID

Differential

Input

Impedance

80 || 1.4

GΩ ||pF

ZICM

Common-mode

Input

Impedance

100 || 0.5

GΩ ||pF

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OPA310-Q1

SBOSAI0A – DECEMBER 2023 – REVISED MAY 2024

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