OPA818 datasheet(6/27 Pages) TI1

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OPA818

SBOS940 – MAY 2019

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Electrical Characteristics: VS = ±5 V (continued)

at TA ≈ 25°C, VS+ = +5 V, VS– = –5 V, closed-loop gain (G) = 7 V/V, common-mode voltage (VCM) = midsupply, RF = 301 Ω, RL

= 100 Ω to midsupply (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(3)

Defined by ΔVOS at most positive/negative input voltage specification

(4)

ΔVOS = |VOS at specified VCM – VOS at 0 V VCM|

INPUT

Common-mode input impedance

500 || 1.9

GΩ || pF

Differential input impedance

500 || 0.5

GΩ || pF

Most positive input voltage(3)

VS+ – 3.6

VS+ – 3.2

Most negative input voltage(3)

VS– VS– + 0.25

ΔVOS at most positive input

voltage(4)

VCM = VS+ – 3.6 V

–1

0.03

VCM = VS+ – 3.6 V, TA = -40°C to +85°C

–1.5

ΔVOS at most negative input

voltage(4)

VCM = VS– + 0.25 V

–1

–0.23

VCM = VS– + 0.25 V, TA = -40°C to +85°C

–1.5

OUTPUT

VOH

Output voltage swing high

VS+ – 1.2

VS+ – 1

TA = –40°C to +85°C

VS+ – 1.3

RL = 1 kΩ

VS+ – 1

VS+ – 0.9

RL = 1 kΩ, TA = –40°C to +85°C

VS+ – 1.2

VOL

Output voltage swing low

VS– + 1.2 VS– + 1.33

TA = –40°C to +85°C

VS– + 1.4

RL = 1 kΩ

VS– + 1.1

VS– + 1.2

RL = 1 kΩ, TA = –40°C to +85°C

VS– + 1.3

IO_MAX

Linear output drive

VOUT = ±2.75 V, RL to midsupply =

Ω, [ΔVOS from no-load VOS] ≤ 1 mV

±55

VOUT = ±2.5 V, RL to midsupply =

Ω, [ΔVOS from no-load VOS] ≤ 1 mV,

TA = –40°C to +85°C

±50

ISC

Output short-circuit current

±100

CLOAD

Capacitive load drive

30% overshoot, VOUT step = 200 mV

G = 10, 30% overshoot

POWER SUPPLY

Single-supply operating range

Quiescent current per channel

No load

27.7

No load, TA = –40°C to +85°C

31.5

IQ drift

No load, TA = –40°C to +85°C

µA/°C

PSRR+

Positive power supply rejection

ratio

ΔVS+ = ±0.25 V

ΔVS+ = ±0.25 V, TA = –40°C to +85°C

PSRR–

Negative power supply rejection

ratio

ΔVS– = ±0.25 V

ΔVS– = ±0.25 V, TA = –40°C to +85°C

POWER DOWN

VTH_EN

Enable voltage threshold

Power on when PD > VTH_EN, No Load

VS+ – 1

VTH_DIS

Disable voltage threshold

Power down when PD < VTH_DIS, No Load

VS+ – 3

Power-down VCC IQ

No Load

µA

PD pin bias current(2)

No load, PD = VS+

–3

–2

µA

No load, PD = VS–

µA

Turnon time delay

Time to VO = 90% of final value

270

Turnoff time delay

Time to VO = 10% of original value

230

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