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| OPA188-Q1 Datasheet, PDF (9/37 Pages) Texas Instruments – Precision, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift, Automotive-Grade Operational Amplifier | |||
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OPA188-Q1, OPA2188-Q1
SBOS860 â APRIL 2017
7.6 Electrical Characteristics: Low-Voltage Operation
at TA = 25°C, VS = ±2 V to < ±4 V (VS = 4 V to < 8 V), RL = 10 kΩ connected to VS / 2(1), and VCM = VOUT = VS / 2(1)
(unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
OFFSET VOLTAGE
VOS
dVIO/dT
Input offset voltage
Input offset voltage drift
PSRR
Power-supply rejection ratio
Long-term stability(2)
OPA188-Q1
TA = â40°C to 125°C
OPA2188-Q1
TA = â40°C to 105°C
OPA188-Q1
VS = 4 V to 36 V
TA = â40°C to 125°C
OPA2188-Q1
VS = 4 V to 36 V
TA = â40°C to 105°C
±6
±0.03
±0.03
0.075
0.075
4
±25
±0.085
±0.085
μV
μV/°C
μV/°C
0.3
μV/V
0.3
μV/V
μV
INPUT BIAS CURRENT
±160
±1400
pA
IB
Input bias current
OPA188-Q1
TA = â40°C to 125°C
OPA2188-Q1
TA = â40°C to 105°C
±320
±18
nA
±18
nA
±2800
pA
IOS
Input offset current
NOISE
OPA188-Q1
TA = â40°C to 125°C
OPA2188-Q1
TA = â40°C to 105°C
±6
nA
±6
nA
en
Input voltage noise
f = 0.1 Hz to 10 Hz
f = 0.1 Hz to 10 Hz
250
nVPP
40
nVrms
Input voltage noise density
f = 1 kHz
8.8
nV/âHz
in
Input current noise density
INPUT VOLTAGE RANGE
f = 1 kHz
7
fA/âHz
VCM
Common-mode voltage range
CMRR
Common-mode rejection ratio
INPUT IMPEDANCE
OPA188-Q1
TA = â40°C to 125°C
OPA2188-Q1
TA = â40°C to 105°C
(Vâ) < VCM < (V+) â 1.5 V
(Vâ) + 0.5 V < VCM < (V+) â 1.5 V
VS = ±2 V
OPA188-Q1
(Vâ) + 0.5 V < VCM < (V+) â 1.5 V
VS = ±2 V, TA = â40°C to 125°C
OPA2188-Q1
(Vâ) + 0.5 V < VCM < (V+) â 1.5 V
VS = ±2 V, TA = â40°C to 105°C
Vâ
(V+) â 1.5
V
Vâ
(V+) â 1.5
V
106
114
dB
114
120
dB
110
120
dB
110
120
dB
ZID
Differential
ZIC
Common-mode
100 || 6
6 || 9.5
MΩ || pF
1012 Ω || pF
OPEN-LOOP GAIN
(1) VS / 2 = midsupply.
(2) 1000-hour life test at 125°C demonstrated randomly distributed variation in the range of measurement limits at approximately 4 μV.
Copyright © 2017, Texas Instruments Incorporated
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