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OPAX388 Datasheet(PDF) 6 Page - Texas Instruments

Part # OPAX388
Description  Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail Input/Output, Operational Amplifiers
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPAX388 Datasheet(HTML) 6 Page - Texas Instruments

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OPA388, OPA2388, OPA4388
SBOS777 – DECEMBER 2016
www.ti.com
Product Folder Links: OPA388 OPA2388 OPA4388
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
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
MAX
UNIT
OFFSET VOLTAGE
VOS
Input offset voltage
±0.25
±5
µV
TA = –40°C to +125°C
±7.5
dVOS/dT
Input offset voltage drift
TA = –40°C to +125°C
±0.005
±0.05
µV/°C
PSRR
Power-supply rejection
ratio
TA = –40°C to +125°C
±0.1
±1
µV/V
INPUT BIAS CURRENT
IB
Input bias current
RIN = 100 kΩ
±30
±350
pA
TA = 0°C to +85°C
±400
pA
TA = –40°C to +125°C
±700
IOS
Input offset current
±60
±700
TA = 0°C to +85°C
±800
TA = –40°C to +125°C
±800
NOISE
EN
Input voltage noise
f = 0.1 Hz to 10 Hz
0.14
µVPP
eN
Input voltage noise density
f = 10 Hz
7
nV/
√Hz
f = 100 Hz
7
f = 1 kHz
7
f = 10 kHz
7
IN
Input current noise density
f = 1 kHz
100
fA/rtHz
INPUT VOLTAGE
VCM
Common-mode voltage
range
(V–) – 0.1
(V+) + 0.1
V
CMRR
Common-mode rejection
ratio
(V–) – 0.1 V < VCM < (V+) + 0.1 V
VS = ±1.25 V
124
138
dB
VS = ±2.75 V
124
140
(V–) < VCM < (V+) + 0.1 V,
TA = –40°C to +125°C
VS = ±1.25 V
114
134
(V–) – 0.05 V < VCM < (V+) + 0.1 V,
TA = –40°C to +125°C
VS = ±2.75 V
124
140
INPUT IMPEDANCE
zid
Differential input
impedance
100 || 2
MΩ || pF
zic
Common-mode input
impedance
60 || 4.5
TΩ || pF
OPEN-LOOP GAIN
AOL
Open-loop voltage gain
(V–) + 0.1 V < VO < (V+) – 0.1 V, RLOAD = 10 kΩ
126
148
dB
(V–) + 0.1 V < VO < (V+) – 0.1 V, RLOAD = 10 kΩ,
TA = –40°C to +125°C
120
126
(V–) + 0.2 V < VO < (V+) – 0.2 V, RLOAD = 2 kΩ
126
148
(V–) + 0.25 V < VO < (V+) – 0.25 V, RLOAD = 2 kΩ,
TA = –40°C to +125°C
120
126
FREQUENCY RESPONSE
GBW
Unity-gain bandwidth
10
MHz
SR
Slew rate
G = +1, 4-V step
5
V/µs
THD+N
Total harmonic distortion +
noise
G = 1, f = 1 kHz, VO = 1 VRMS
0.0005%
tS
Settling time
To 0.1%
VS = ±2.5 V, G = +1,
1-V step
0.75
µs
To 0.01%
VS = ±2.5 V, G = +1,
1-V step
2
tOR
Overload recovery time
VIN × G = VS
10
µs


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