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OPA391 데이터시트(PDF) 5 Page - Texas Instruments

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부품명 OPA391
상세설명  OPAx391 Precision, Ultra-Low IQ, Low Offset Voltage, e-trim??Op Amp
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
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OPA391 데이터시트(HTML) 5 Page - Texas Instruments

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6.5 Electrical Characteristics
at VS = 1.7 V to 5.5 V, TA = 25°C, and VCM = VS / 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OFFSET VOLTAGE
VOS
Input offset voltage
VS = 5.0 V
±10
±45
µV
VCM = (V+) – 0.3, VS = 5.0
±60
±750
VCM = (V–) – 0.1
±15
±80
TA = –40°C to +125°C(1)
±500
dVOS/dT
Input offset voltage
drift
TA = 0°C to 85°C(1)
±1
±5
µV/°C
TA = –40°C to +125°C(1)
±1.2
±6
PSRR
Power supply
rejection ratio
VCM = (V–) – 0.1 V
40
µV/V
INPUT BIAS CURRENT
IB
Input bias current
TA = 25°C(1)
±0.01
0.8
pA
TA = 0°C to 85°C(1)
5
TA = –40°C to +125°C(1)
30
IOS
Input offset current
TA = 25°C(1)
±0.01
0.8
pA
TA = 0°C to 85°C(1)
5
TA = –40°C to +125°C(1)
30
NOISE
Input voltage noise
f = 0.1 Hz to 10 Hz
1
µVRMS
6.6
µVPP
en
Input voltage noise
density
f = 10 Hz
120
nV/√Hz
f = 1 kHz
55
f = 10 kHz
55
in
Input current noise
density
f = 1 kHz
30
fA/√Hz
INPUT VOLTAGE
VCM
Common-mode
voltage
TA = –40°C to +125°C(1)
(V–) –
0.1
(V+) +
0.1
V
CMRR
Common-mode
rejection ratio
(V–) – 0.1 ≤ VCM ≤ (V+) – 1.5 V
89
100
dB
(V–) – 0.1 ≤ VCM ≤ (V+) –
1.5 V, VS = 5.5 V
100
121
TA = –40°C to +125°C(1)
90
100
(V+) – 0.6 ≤ VCM ≤ (V+) + 0.1 V
69
INPUT IMPEDANCE
Zid
Differential input
impedance
0.1 || 5
GΩ || pF
Zic
Common-mode
input impedance
1 || 3
TΩ || pF
www.ti.com
OPA391
SBOS925 – DECEMBER 2020
Copyright © 2020 Texas Instruments Incorporated
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