OPA310 datasheet(13/55 Pages) TI

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7.7 Electrical Characteristics (continued)

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

VO UT = VS / 2, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OPEN-LOOP GAIN

AOL

Open-loop

voltage gain

VS = 1.8 V, (V–) + 0.05 V < VO < (V+) – 0.05 V,

RL = 10 kΩ to VS / 2

102

115

Open-loop

voltage gain(2)

VS = 1.8 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 2 kΩ to VS / 2

105

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

RL = 10 kΩ to VS / 2

109

125

Open-loop

voltage gain

VS = 5.5 V, (V–) + 0.15 V < VO < (V+) – 0.15 V,

RL = 2 kΩ to VS / 2

105

115

VS = 1.8 V, (V–) + 0.05 V < VO < (V+) – 0.05 V,

RL = 10 kΩ to VS / 2

TA = –40°C to 125°C

100

VS = 1.8 V, (V–) + 0.10 V < VO < (V+) – 0.10 V,

RL = 2 kΩ to VS / 2

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

RL = 10 kΩ to VS / 2

105

VS = 5.5 V, (V–) + 0.15 V < VO < (V+) – 0.15 V,

RL = 2 kΩ to VS / 2

100

Open-loop

voltage gain (6)

VS = 3.3 V, (V–) + 0.25 V < VO < (V+) – 0.25 V,

IL = ±50 mA

TA = 25°C

102

FREQUENCY RESPONSE

GBW

Gain-bandwidth

product

VS = 1.8 V, G = +1, RL = 10 kΩ, CL = 100 pF

2.5

MHz

VS = 5.5 V, G = +1, RL = 10 kΩ, CL = 100 pF

MHz

Slew rate

VS = 1.8 V, G = +1, RL = 10 kΩ

2.8

V/μs

VS = 5.5 V, G = +1, RL = 10 kΩ

V/μs

THD+N

Total harmonic

distortion + noise

(4)

G = +1, VO = 1 VRMS, f = 1 kHz,

RL = 10 kΩ to VS / 2

0.0005

G = +1, VO = 1 VRMS, f = 1 kHz,

RL = 2 kΩ to VS / 2

0.0035

G = +1, VO = 1 VRMS, f = 1 kHz,

RL = 600 Ω to VS / 2

0.0080

Settling time

To 0.1%, VS = 5.5 V, VSTEP = 4 V, G = +1, CL = 10 pF

1.8

μs

To 0.1%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 10 pF

1.3

To 0.01%, VS = 5.5 V, VSTEP = 4 V, G = +1, CL = 10 pF

2.3

To 0.01%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 10 pF

1.6

Phase margin

G = +1, RL = 10 kΩ connected to VS/2, CL = 10 pF

CL Drive

Cap Load Drive

G = +1, RL = 10 kΩ connected to VS/2, Phase Margin = 40°

G = +1, RL = 10 kΩ connected to VS/2,

No Sustained Oscillations

250

toverload

Overload

recovery time

VIN × gain > VS

0.6

μs

EMIRR

Electro-magnetic

interference

rejection ratio

f = 1.8 GHz, VIN_EMIRR = 100 mV

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OPA310, OPA2310, OPA4310

SBOSAA1C – APRIL 2022 – REVISED SEPTEMBER 2022

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