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| OPA4188_15 Datasheet, PDF (5/28 Pages) Texas Instruments – 0.03-μV/°C Drift, Low-Noise, Rail-to-Rail Output,36-V, Zero-Drift OPERATIONAL AMPLIFIERS | |||
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OPA4188
www.ti.com
SBOS641B â JUNE 2012 â REVISED MARCH 2013
ELECTRICAL CHARACTERISTICS:
Low-Voltage Operation, VS = ±2 V to < ±4 V (VS = +4 V to < +8 V)
At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted.
OPA4188
PARAMETER
CONDITIONS
MIN
TYP
OFFSET VOLTAGE
VOS
dVOS/dT
PSRR
Input offset voltage
Power-supply rejection ratio
Long-term stability
TA = â40°C to +125°C
VS = 4 V to 36 V, VCM = VS / 2
VS = 4 V to 36 V, VCM = VS / 2,
TA = â40°C to +125°C
6
0.03
0.075
4 (1)
Channel separation, dc
1
INPUT BIAS CURRENT
IB
IOS
NOISE
Input bias current
Input offset current
VCM = VS / 2
TA = â40°C to +125°C
TA = â40°C to +125°C
±160
±320
en
Input voltage noise
f = 0.1 Hz to 10 Hz
0.25
en
Input voltage noise density
f = 1 kHz
8.8
in
Input current noise density
f = 1 kHz
7
INPUT VOLTAGE RANGE
VCM
Common-mode voltage range
CMRR
Common-mode rejection ratio
INPUT IMPEDANCE
(Vâ) < VCM < (V+) â 1.5 V
(Vâ) + 0.5 V < VCM < (V+) â 1.5 V,
VS = ±2 V
(Vâ) + 0.5 V < VCM < (V+) â 1.5 V,
VS = ±2 V, TA = â40°C to +125°C
Vâ
106
114
114
120
108
120
Input impedance
Differential
Common-mode
100 || 6
6 || 9.5
OPEN-LOOP GAIN
AOL
Open-loop voltage gain
FREQUENCY RESPONSE
(Vâ) + 500 mV < VO < (V+) â 500 mV,
RL = 10 kΩ
(Vâ) + 500 mV < VO < (V+) â 500 mV,
RL = 10 kΩ, TA = â40°C to +125°C
120
130
110
120
GBW
Gain-bandwidth product
2
SR
Slew rate
G = +1
0.8
THD+N
Overload recovery time
Total harmonic distortion + noise
VIN Ã G = VS
1 kHz, G = 1, VOUT = 1 VRMS
1
0.0001
MAX
UNIT
25
0.085
0.3
0.3
μV
μV/°C
μV/V
μV/V
μV
μV/V
±1400
pA
±8
nA
±2800
pA
±6
nA
μVPP
nV/Hz
fA/Hz
(V+) â 1.5
V
dB
dB
dB
MΩ || pF
1012 Ω || pF
dB
dB
MHz
V/μs
μs
%
(1) 1000-hour life test at +125°C demonstrated randomly distributed variation in the range of measurement limitsâapproximately 4 μV.
Copyright © 2012â2013, Texas Instruments Incorporated
Product Folder Links: OPA4188
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