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OPA322SAIDBVT Datasheet(PDF) 3 Page - Texas Instruments

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Part # OPA322SAIDBVT
Description  20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier with Shutdown
PDF  29 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA322SAIDBVT Datasheet(HTML) 3 Page - Texas Instruments

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OPA322, OPA322S
OPA2322, OPA2322S
OPA4322, OPA4322S
www.ti.com
SBOS538A
– JANUARY 2011 – REVISED MAY 2011
ELECTRICAL CHARACTERISTICS: VS = +1.8 V to +5.5 V, or ±0.9 V to ±2.75 V
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, VOUT = VS/2, and SHDN_x = VS+, unless otherwise noted.
OPA322, OPA322S, OPA2322,
OPA2322S, OPA4322, OPA4322S
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OFFSET VOLTAGE
Input offset voltage
VOS
0.5
2
mV
vs Temperature
dVOS/dT
VS = +5.5 V
1.8
6
μV/°C
vs Power supply
PSR
VS = +1.8 V to +5.5 V
10
50
μV/V
Over temperature
VS = +1.8 V to +5.5 V
20
65
μV/V
Channel separation
At 1 kHz
130
dB
INPUT VOLTAGE
Common-mode voltage range
VCM
(V
–) – 0.1
(V+) + 0.1
V
Common-mode rejection ratio
CMRR
(V
–) – 0.1 V < VCM < (V+) + 0.1 V
90
100
dB
Over temperature
90
dB
INPUT BIAS CURRENT
Input bias current
IB
±0.2
±10
pA
TA = –40°C to +85°C
±50
pA
Over temperature
TA = –40°C to +125°C
±400
pA
Input offset current
IOS
±0.2
±10
pA
TA = –40°C to +85°C
±50
pA
Over temperature
TA = –40°C to +125°C
±400
pA
NOISE
Input voltage noise
f = 0.1 Hz to 10 Hz
2.8
μVPP
f = 1 kHz
8.5
nV/
√Hz
Input voltage noise density
en
f = 10 kHz
7
nV/
√Hz
Input current noise density
in
f = 1 kHz
0.6
fA/
√Hz
INPUT CAPACITANCE
Differential
5
pF
Common-mode
4
pF
OPEN-LOOP GAIN
0.1 V
< VO < (V+) – 0.1 V, RL = 10 kΩ
100
120
dB
Open-loop voltage gain
AOL
0.1 V
< VO < (V+) – 0.1 V, RL = 10 kΩ
94
dB
Phase margin
PM
G = 1 V/V, VS = 5 V, CL = 50 pF
47
Degrees
FREQUENCY RESPONSE
VS = 5.0 V, CL = 50 pF
Gain bandwidth product
GBP
Unity gain
20
MHz
Slew rate
SR
G = +1
10
V/
μs
To 0.1%, 2-V step, G = +1
0.25
μs
Settling time
tS
To 0.01%, 2-V step, G = +1
0.32
μs
Overload recovery time
VIN × G > VS
100
ns
VO = 4 VPP, G = +1, f = 10 kHz, RL = 10 kΩ
0.0005
%
Total harmonic distortion +
THD+N
noise(1)
VO = 2 VPP, G = +1, f = 10 kHz, RL = 600 Ω
0.0011
%
(1)
Third-order filter; bandwidth = 80 kHz at
–3 dB.
Copyright
© 2011, Texas Instruments Incorporated
3



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