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LMP7721 Scheda tecnica(PDF) 6 Page - Texas Instruments

Il numero della parte LMP7721
Spiegazioni elettronici  LMP7721 3-Femtoampere Input Bias Current Precision Amplifier
PDF  35 Pages
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Produttore elettronici  TI2 [Texas Instruments]
Homepage  https://www.ti.com
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LMP7721
SNOSAW6E – JANUARY 2008 – REVISED DECEMBER 2014
www.ti.com
Electrical Characteristics: 2.5 V (continued)
Unless otherwise specified, all limits are specified for TA = 25°C, V
+ = 2.5 V, V− = 0 V, V
CM = (V
+ + V−)/2.
PARAMETER
TEST CONDITIONS
MIN(1)
TYP(2)
MAX(1)
UNIT
In
Input-Referred Current Noise
f = 1 kHz
0.01
pA/
THD+N
Total Harmonic Distortion +
f = 1 kHz, AV = 2, RL = 100 kΩ
0.003%
Noise
VO = 0.9 VPP
f = 1 kHz, AV = 2, RL = 600 Ω
0.003%
VO = 0.9 VPP
6.6 Electrical Characteristics: 5 V
Unless otherwise specified, all limits are specified for TA = 25°C, V
+ = 5 V, V− = 0 V, V
CM = (V
+ + V−)/2.
PARAMETER
TEST CONDITIONS
MIN(1)
TYP(2)
MAX(1)
UNIT
VOS
Input Offset Voltage
–150
±26
150
μV
–40°C
≤ TJ ≤ 125°C
450
450
TC VOS
Input Offset Average Drift
–1.5
–4
μV/°C
(3)
IBIAS
Input Bias Current
VCM = 1 V
(4) (5)
25°C
–20
±3
20
fA
−40°C to 85°C
–900
900
−40°C to 125°C
–5
5
pA
IOS
Input Offset Current
(5)
±6
±40
fA
CMRR
Common-Mode Rejection Ratio
0 V
≤ VCM ≤ 3.7 V
84
100
dB
0 V
≤ VCM ≤ 3.7 V, –40°C ≤ TJ ≤ 125°C
82
PSRR
Power Supply Rejection Ratio
1.8 V
≤ V+ ≤ 5.5 V, V− = 0 V, VCM = 0
84
96
dB
1.8 V
≤ V+ ≤ 5.5 V, V− = 0 V, VCM = 0,
80
–40°C
≤ TJ ≤ 125°C
CMVR
Input Common-Mode Voltage
CMRR
≥ 80 dB
−0.3
4
V
Range
CMRR
≥ 78 dB, –40°C ≤ TJ ≤ 125°C
–0.3
4
AVOL
Large Signal Voltage Gain
VO = 0.3 V to 4.7 V, RL = 2 kΩ to V
+/2
88
111
VO = 0.3 V to 4.7 V, RL = 2 kΩ to V
+/2,
82
–40°C
≤ TJ ≤ 125°C
dB
VO = 0.3 V to 4.7 V, RL = 10 kΩ to V
+/2
92
120
VO = 0.3 V to 4.7 V, RL = 10 kΩ to V
+/2,
88
–40°C
≤ TJ ≤ 125°C
VO
Output Swing High
RL = 2 kΩ to V
+/2
70
30
RL = 2 kΩ to V
+/2, –40°C ≤ T
J ≤ 125°C
77
mV
from V+
RL = 10 kΩ to V
+/2
60
20
RL = 10 kΩ to V
+/2, –40°C ≤ T
J ≤ 125°C
66
Output Swing Low
RL = 2 kΩ to V
+/2
31
70
RL = 2 kΩ to V
+/2, –40°C ≤ T
J ≤ 125°C
73
mV
RL = 10 kΩ to V
+/2
20
60
RL = 10 kΩ to V
+/2, –40°C ≤ T
J ≤ 125°C
62
(1)
Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlations using the
Statistical Quality Control (SQC) method.
(2)
Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped
production material.
(3)
Offset voltage average drift is determined by dividing the change in VOS at the temperature extremes by the total temperature change.
(4)
Positive current corresponds to current flowing into the device.
(5)
This parameter is specified by design and/or characterization and is not tested in production.
6
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