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| OPA191_0017 Datasheet, PDF (7/51 Pages) Texas Instruments – 36-V, Low Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, Low Input Bias Current Op Amp | |||
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www.ti.com
OPA191, OPA2191, OPA4191
SBOS701A â DECEMEBER 2015 â REVISED APRIL 2016
6.7 Electrical Characteristics: VS = ±4 V to ±18 V (VS = 8 V to 36 V)
at TA = 25°C, VCM = VOUT = VS / 2, and RL = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
OFFSET VOLTAGE
±5
±25
VS = ±18 V
TA = 0°C to 85°C
TA = â40°C to +125°C
VOS
Input offset voltage
(V+) â 3.0 V < VCM < (V+) â 1.5 V
±8
±75
±10
±125
See
Common-Mode Voltage Range
µV
section
VS = ±18 V,
VCM = (V+) â 1.5 V
dVOS/dT
PSRR
VS = ±18 V,
D package only
Input offset voltage drift VS = ±18 V,
DGK and DBV packages only
Power-supply rejection
ratio
VS = ±18 V,
VCM = (V+) â 1.5 V
TA = â40°C to +125°C
TA = 0°C to 85°C
TA = â40°C to +125°C
TA = 0°C to 85°C
TA = â40°C to +125°C
TA = 0°C to 85°C
TA = â40°C to +125°C
TA = â40°C to +125°C
±10
±25
±50
±0.1
±0.15
±0.1
±0.15
±0.5
±0.3
±50
±150
±250
±0.8
±1.2
±0.9
±1.3
µV/°C
±1.0 µV/V
INPUT BIAS CURRENT
IB
IOS
NOISE
Input bias current
Input offset current
TA = â40°C to +125°C
TA = â40°C to +125°C
±5
±20
pA
±9
nA
±2
±20
pA
±2
nA
En
Input voltage noise
(Vâ) â 0.1 V < VCM < (V+) â 3 V
(V+) â 1.5 V < VCM < (V+) + 0.1 V
f = 0.1 Hz to 10 Hz
f = 0.1 Hz to 10 Hz
f = 100 Hz
en
Input voltage noise
density
(Vâ) â 0.1 V < VCM < (V+) â 3 V
f = 1 kHz
f = 100 Hz
(V+) â 1.5 V < VCM < (V+) + 0.1 V f = 1 kHz
1.4
7
µVPP
18
15
nV/âHz
53
24
in
Input current noise
density
f = 1 kHz
1.5
fA/âHz
INPUT VOLTAGE
VCM
Common-mode voltage
range
(Vâ) â 0.1
(V+) + 0.1
V
CMRR
Common-mode
rejection ratio
VS = ±18 V,
(Vâ) â 0.1 V < VCM < (V+) â 3 V
VS = ±18 V,
(Vâ) < VCM < (V+) â 3 V
VS = ±18 V,
(V+) â 1.5 V < VCM < (V+)
(V+) â 3 V < VCM < (V+) â 1.5 V
TA = â40°C to +125°C
TA = â40°C to +125°C
120
140
114
126
dB
96
120
86
100
See
Typical Characteristics
INPUT IMPEDANCE
ZID
Differential
ZIC
Common-mode
100 || 1.6
1 || 6.4
MΩ || pF
1013Ω || pF
OPEN-LOOP GAIN
VS = ±18 V,
124
134
AOL
Open-loop voltage gain
(Vâ) + 0.6 V < VO < (V+) â 0.6 V,
RL = 2 kΩ
VS = ±18 V,
TA = â40°C to +125°C
114
126
126
140
dB
(Vâ) + 0.3 V < VO < (V+) â 0.3 V,
RL = 10 kΩ
TA = â40°C to +125°C
120
134
Copyright © 2015â2016, Texas Instruments Incorporated
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Product Folder Links: OPA191 OPA2191 OPA4191
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