Datasheet

LMP2231
www.ti.com SNOSB01E –JANUARY 2008–REVISED MARCH 2013
1.8V DC Electrical Characteristics
(1)
Unless otherwise specified, all limits ensured for T
A
= 25°C, V
+
= 1.8V, V
−
= 0V, V
CM
= V
O
= V
+
/2, and R
L
> 1 MΩ. Boldface
limits apply at the temperature extremes.
Symbol Parameter Conditions Min
(2)
Typ
(3)
Max
(2)
Units
V
OS
Input Offset Voltage ±10 ±230
μV
±325
TCV
OS
Input Offset Voltage Drift LMP2231A ±0.3 ±0.4
μV/°C
LMP2231B ±0.3 ±2.5
I
BIAS
Input Bias Current 0.02 ±1.0
pA
±50
I
OS
Input Offset Current 5 fA
CMRR Common Mode Rejection Ratio 0V ≤ V
CM
≤ 0.8V 76 92
dB
75
PSRR Power Supply Rejection Ratio 1.6V ≤ V
+
≤ 5.5V 83 120
dB
V
−
= 0V, V
CM
= 0V 83
CMRR ≥ 76 dB −0.2 1.0
CMVR Common Mode Voltage Rang V
CMRR ≥ 75 dB 0 1.0
V
O
= 0.3V to 1.5V 103
A
VOL
Large Signal Voltage Gain 120 dB
R
L
= 10 kΩ to V
+
/2 103
V
O
Output Swing High R
L
= 10 kΩ to V
+
/2 12 50
mV
V
IN
(diff) = 100 mV 50
from either
R
L
= 10 kΩ to V
+
/2 50
rail
Output Swing Low 13
V
IN
(diff) = −100 mV 50
I
O
Output Current
(4)
Sourcing, V
O
to V
−
2.5 5
V
IN
(diff) = 100 mV 2
mA
Sinking, V
O
to V
+
2 5
V
IN
(diff) = −100 mV 1.5
I
S
Supply Current 10 14
µA
15
(1) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very
limited self-heating of the device such that T
J
= T
A
. No ensured specification of parametric performance is indicated in the electrical
tables under conditions of internal self-heating where T
J
> T
A
. Absolute Maximum Ratings indicate junction temperature limits beyond
which the device may be permanently degraded, either mechanically or electrically.
(2) All limits are specified by testing, statistical analysis or design.
(3) Typical values represent the most likely parametric norm 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 ensured on shipped production
material.
(4) The short circuit test is a momentary open loop test.
1.8V AC Electrical Characteristics
(1)
Unless otherwise is specified, all limits ensured for T
A
= 25°C, V
+
= 1.8V, V
−
= 0V, V
CM
= V
O
= V
+
/2, and R
L
> 1 MΩ. Boldface
limits apply at the temperature extremes.
Symbol Parameter Conditions Min
(2)
Typ
(3)
Max
(2)
Units
GBW Gain-Bandwidth Product C
L
= 20 pF, R
L
= 10 kΩ 127 kHz
SR Slew Rate A
V
= +1, C
L
= 20 pF Falling Edge 58
V/ms
R
L
= 10 kΩ
Rising Edge 48
θ
m
Phase Margin C
L
= 20 pF, R
L
= 10 kΩ 70 deg
G
m
Gain Margin C
L
= 20 pF, R
L
= 10 kΩ 25 dB
e
n
Input-Referred Voltage Noise Density f = 1 kHz 60 nV/√Hz
Input-Referred Voltage Noise 0.1 Hz to 10 Hz 2.4 μV
PP
(1) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very
limited self-heating of the device such that T
J
= T
A
. No ensured specification of parametric performance is indicated in the electrical
tables under conditions of internal self-heating where T
J
> T
A
. Absolute Maximum Ratings indicate junction temperature limits beyond
which the device may be permanently degraded, either mechanically or electrically.
(2) All limits are specified by testing, statistical analysis or design.
(3) Typical values represent the most likely parametric norm 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 ensured on shipped production
material.
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