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| OPA145 Datasheet, PDF (8/40 Pages) Texas Instruments – High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifiers | |||
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OPA145, OPA2145, OPA4145
SBOS427 â JUNE 2017
www.ti.com
7.7 Electrical Characteristics: VS = 4.5 V to 36 V; ±2.25 V to ±18 V
at TA = 25°C, RL = 2 k⦠connected to midsupply, and VCM = VOUT = midsupply (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
OFFSET VOLTAGE
VOS
Offset voltage, RTI
dVOS/dT Drift
PSRR
Power-supply rejection ratio
INPUT BIAS CURRENT(1)
VS = ±18 V
VS = ±18 V, TA = 0°C to +85°C
VS = ±18 V, TA = â40°C to +125°C
VS = ±18 V, TA = 0°C to +85°C
VS = ±18 V, TA = â40°C to +125°C
VS = ±2.25 V to ±18 V
VS = ±2.25 V to ±18 V,
TA = â40°C to +125°C
±40
±0.4
±0.5
±0.06
±2
IB
Input bias current
TA = 0°C to +85°C
TA = â40°C to +125°C
±2
IOS
NOISE
Input offset current
TA = 0°C to +85°C
TA = â40°C to +125°C
f = 0.1 Hz to 10 Hz
320
Input voltage noise
f = 0.1 Hz to 10 Hz
60
f = 10 Hz
9
en
Input voltage noise density
f = 100 Hz
7.2
f = 1 kHz
7
In
Input current noise density
f = 1 kHz
0.8
INPUT VOLTAGE RANGE
VCM
Common-mode voltage range
CMRR
Common-mode rejection ratio
INPUT IMPEDANCE
Differential
Common-mode
OPEN-LOOP GAIN
TA = â40°C to +125°C
VS = ±18 V, VCM = (Vâ) â0.1 V to
(V+) â 3.5 V
VS = ±18 V, VCM = (Vâ) â0.1 V to
(V+) â 3.5 V,
TA = â40°C to +125°C
VCM = (Vâ) â0.1 V to (V+) â3.5 V
(Vâ) â0.1
126
140
118
1013 || 5.0
1013 || 4.3
AOL
Open-loop voltage gain
VO = (Vâ) + 0.35 V to (V+) â 0.35 V,
RL = 10 kΩ
118
123
VO = (Vâ) + 0.35 V to (V+) â 0.35 V,
RL = 2 kΩ
106
110
VO = (Vâ) + 0.35 V to (V+) â 0.35 V,
RL = 2 kΩ, TA = â40°C to +125°C
102
(1) High-speed test, TA = TJ.
MAX
±150
±280
±350
±1
±1.4
±0.3
±2
±10
±600
±10
±10
±600
±10
(V+)â3.5
UNIT
μV
μV/°C
μV/V
pA
nA
pA
nA
nVPP
nVRMS
nV/âHz
fA/âHz
V
dB
Ω || pF
dB
8
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Product Folder Links: OPA145 OPA2145 OPA4145
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