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OPA991 データシート(PDF) 13 Page - Texas Instruments

部品番号. OPA991
部品情報  OPAx991 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp
ダウンロード  59 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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OPA991 Datasheet(HTML) 13 Page - Texas Instruments

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13
OPA991, OPA2991, OPA4991
www.ti.com
SBOS969B – OCTOBER 2019 – REVISED MAY 2020
Product Folder Links: OPA991 OPA2991 OPA4991
Submit Documentation Feedback
Copyright © 2019–2020, Texas Instruments Incorporated
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 VOUT
= VS / 2, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
FREQUENCY RESPONSE
GBW
Gain-bandwidth product
4.5
MHz
SR
Slew rate
VS = 40 V, G = +1, CL = 20 pF
21
V/µs
tS
Settling time
To 0.01%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF
2.5
µs
To 0.01%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF
1.5
To 0.1%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF
2
To 0.1%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF
1
Phase margin
G = +1, RL = 10 kΩ
60
°
Overload recovery time
VIN × gain > VS
400
ns
THD+N
Total harmonic distortion
+ noise
VS = 40 V, VO = 3 VRMS, G = 1, f = 1 kHz
0.00021%
OUTPUT
Voltage output swing
from rail
Positive and negative rail headroom
VS = 40 V, RL = no load
(1)
5
10
mV
VS = 40 V, RL = 10 kΩ
50
55
VS = 40 V, RL = 2 kΩ
200
250
VS = 2.7 V, RL = no load
(1)
1
6
VS = 2.7 V, RL = 10 kΩ
5
12
VS = 2.7 V, RL = 2 kΩ
25
40
ISC
Short-circuit current
±75
mA
CLOAD
Capacitive load drive
1000
pF
ZO
Open-loop output
impedance
f = 1 MHz, IO = 0 A
525
POWER SUPPLY
IQ
Quiescent current per
amplifier
VCM = V–, IO = 0 A
560
685
µA
TA = –40°C to 125°C
750


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