5.5 Electrical Characteristics: OPAx371D

For VS = 1.5 V to 5.5 V (±0.75 V to ±2.75 V) at TA = 25°C, G = 10V/V, RF = 1.8MΩ, RL = 1 MΩ 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

±0.3

±1.75

mV

TA = 0°C to 85°C

±1.8

dVOS/dT

Input offset

voltage drift (1)

TA = 0°C to 85°C

±0.58

µV/

℃

PSRR

Input offset

voltage versus

power supply

79

95

dB

TA = –40°C to 125°C

79

INPUT BIAS CURRENT

IB

Input bias

current (1)

±0.5

±2

pA

TA = 0°C to 85°C

±80

TA = –40°C to 125°C

±560

IOS

Input offset

current (1)

±0.3

±1.5

pA

TA = 0°C to 85°C

±30

TA = –40°C to 125°C

±150

NOISE

EN

Input voltage

noise

VS = 5.5V, f = 0.1 to 10Hz

3.9

μVPP

eN

Input voltage

noise density

VS = 5.5V, f = 1kHz

VS = 5.5V, f = 1kHz

155

nV/√Hz

iN

Input current

noise density (2)

f = 1 kHz

5

fA/√Hz

INPUT VOLTAGE RANGE

VI

Input voltage

range(2)

(V–) – 0.1

(V+) + 0.2

V

TA = –40°C to 125°C

(V–)

(V+)

CMRR

Common-mode

rejection ratio

VS = 5.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V

78

94

dB

VS = 5.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V (1)

TA = 0°C to 85°C

76

VS = 5.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V (1)

TA = –40°C to 125°C

74

VS = 1.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V (1)

68

90

VS = 1.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V (1)

TA = 0°C to 85°C

68

VS = 1.5 V, (V–) ≤ VCM ≤ (V+) – 0.7 V (1)

TA = –40°C to 125°C

67

VS = 5.5 V, (V–) ≤ VCM ≤ (V+)

65

83

VS = 5.5 V, (V–) ≤ VCM ≤ (V+)

TA = 0°C to 85°C

63

VS = 5.5 V, (V–) ≤ VCM ≤ (V+)

TA = –40°C to 125°C

63

INPUT IMPEDANCE

ZID

Differential

80 || 0.3

GΩ || pF

ZICM

Common-mode

100 || 2.2

OPEN-LOOP GAIN

AOL

Open-loop

voltage gain

VS = 5.5 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 100kΩ to VS / 2

110

133

dB

VS = 5.5 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 100kΩ to VS / 2

TA = 0°C to 85°C

108

VS = 5.5 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 100kΩ to VS / 2

TA = –40°C to 125°C

96

VS = 1.5 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 100kΩ to VS / 2

94

122

VS = 5.5 V, (V–) + 0.25 V < VO < (V+) – 0.25 V,

RL = 10kΩ to VS / 2 (1)

116

130

VS = 1.5 V, (V–) + 0.25 V < VO < (V+) – 0.25 V,

RL = 10kΩ to VS / 2 (1)

103

118

FREQUENCY RESPONSE

OPA371D, OPA2371D, OPA4371D

SLVSM48A – JUNE 2026 – REVISED AUGUST 2026

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