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| OPA388_17 Datasheet, PDF (6/34 Pages) Texas Instruments – Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail Input/Output, Operational Amplifiers | |||
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OPA388, OPA2388, OPA4388
SBOS777 â DECEMBER 2016
www.ti.com
6.5 Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V)
at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
OFFSET VOLTAGE
VOS
dVOS/dT
PSRR
Input offset voltage
Input offset voltage drift
Power-supply rejection
ratio
TA = â40°C to +125°C
TA = â40°C to +125°C
TA = â40°C to +125°C
±0.25
±0.005
±0.1
INPUT BIAS CURRENT
±30
IB
Input bias current
RIN = 100 kâ¦
TA = 0°C to +85°C
TA = â40°C to +125°C
±60
IOS
NOISE
Input offset current
TA = 0°C to +85°C
TA = â40°C to +125°C
EN
Input voltage noise
f = 0.1 Hz to 10 Hz
0.14
f = 10 Hz
7
f = 100 Hz
7
eN
Input voltage noise density
f = 1 kHz
7
f = 10 kHz
7
IN
Input current noise density f = 1 kHz
100
INPUT VOLTAGE
VCM
Common-mode voltage
range
(Vâ) â 0.1
CMRR
Common-mode rejection
ratio
INPUT IMPEDANCE
(Vâ) â 0.1 V < VCM < (V+) + 0.1 V
(Vâ) < VCM < (V+) + 0.1 V,
TA = â40°C to +125°C
(Vâ) â 0.05 V < VCM < (V+) + 0.1 V,
TA = â40°C to +125°C
VS = ±1.25 V
VS = ±2.75 V
VS = ±1.25 V
VS = ±2.75 V
124
138
124
140
114
134
124
140
zid
Differential input
impedance
100 || 2
zic
Common-mode input
impedance
60 || 4.5
OPEN-LOOP GAIN
AOL
Open-loop voltage gain
FREQUENCY RESPONSE
(Vâ) + 0.1 V < VO < (V+) â 0.1 V, RLOAD = 10 kΩ
(Vâ) + 0.1 V < VO < (V+) â 0.1 V, RLOAD = 10 kΩ,
TA = â40°C to +125°C
(Vâ) + 0.2 V < VO < (V+) â 0.2 V, RLOAD = 2 kΩ
(Vâ) + 0.25 V < VO < (V+) â 0.25 V, RLOAD = 2 kΩ,
TA = â40°C to +125°C
126
148
120
126
126
148
120
126
GBW
Unity-gain bandwidth
10
SR
Slew rate
G = +1, 4-V step
5
THD+N
Total harmonic distortion +
noise
G = 1, f = 1 kHz, VO = 1 VRMS
0.0005%
tS
Settling time
To 0.1%
To 0.01%
VS = ±2.5 V, G = +1,
1-V step
0.75
VS = ±2.5 V, G = +1,
1-V step
2
tOR
Overload recovery time
VIN Ã G = VS
10
MAX
±5
±7.5
±0.05
±1
±350
±400
±700
±700
±800
±800
(V+) + 0.1
UNIT
µV
µV/°C
µV/V
pA
pA
µVPP
nV/âHz
fA/rtHz
V
dB
MΩ || pF
TΩ || pF
dB
MHz
V/µs
µs
µs
6
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Product Folder Links: OPA388 OPA2388 OPA4388
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