OPA2990IDDFR datasheet(14/81 Pages) TI

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6.7 Electrical Characteristics (continued)

For VS = (V+) – (V–) = 2.7 V to 40 V (±1.35 V to ±20 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 = 40 V, VCM = VS / 2,

(V–) + 0.1 V < VO < (V+) – 0.1 V

120

145

TA = –40°C to 125°C

142

VS = 4 V, VCM = VS / 2,

(V–) + 0.1 V < VO < (V+) – 0.1 V

104

130

TA = –40°C to 125°C

125

VS = 2.7 V, VCM = VS / 2,

(V–) + 0.1 V < VO < (V+) – 0.1

V(2)

101

118

TA = –40°C to 125°C

117

FREQUENCY RESPONSE

GBW

Gain-bandwidth product

1.1

MHz

Slew rate

VS = 40 V, G = +1, CL = 20 pF

4.5

V/μs

Settling time

To 0.1%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF

µs

To 0.1%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF

To 0.01%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF

To 0.01%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF

Phase margin

G = +1, RL = 10 kΩ, CL = 20 pF

Overload recovery time

VIN × gain > VS

600

THD+N

Total harmonic distortion +

noise

VS = 40 V, VO = 1 VRMS, G = 1, f = 1 kHz

0.00162%

OUTPUT

Voltage output swing from

rail

Positive and negative

rail headroom

VS = 40 V, RL = no load

VS = 40 V, RL = 10 kΩ

VS = 40 V, RL = 2 kΩ

200

300

VS = 2.7 V, RL = no

load

VS = 2.7 V, RL = 10 kΩ

VS = 2.7 V, RL = 2 kΩ

ISC

Short-circuit current

±80

CLOAD

Capacitive load drive

See Small-Signal Overshoot vs Capacitive Load in the

Typical Characteristics section

Open-loop output

impedance

f = 1 MHz, IO = 0 A

575

Ω

OPA990, OPA2990, OPA4990

SBOS933H – FEBRUARY 2019 – REVISED MAY 2021

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