Datasheet

LT1990
6
1990fb
±15V ELECTRICAL CHARACTERISTICS
V
S
= ±15V, R
L
= 10k, V
CM
= V
REF
= 0V, G = 1, 10, T
A
= 25°C, unless otherwise noted. (Note 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
G Gain Pins 5 and 8 = Open 1
Pins 5 and 8 = V
REF
10
∆G Gain Error V
OUT
= ±10V
LT1990, G = 1 0.4 0.6 %
LT1990A, G = 1 0.07 0.28 %
G = 10 0.2 0.8 %
GNL Gain Nonlinearity V
OUT
= ±10V
G = 1 0.0008 0.002 %
G = 10 0.005 0.02 %
V
CM
Input Voltage Range Guaranteed by CMRR –250 250 V
CMRR Common Mode Rejection Ratio, RTI V
CM
= –250V to 250V
LT1990 60 68 dB
LT1990A 70 75 dB
V
OS
Offset Voltage, RTI G = 1, 10 0.9 5.2 mV
e
n
Input Noise Voltage, RTI f
O
= 0.1Hz to 10Hz 22 µV
P-P
Noise Voltage Density, RTI f
O
= 1kHz 1 µV/√Hz
R
IN
Input Resistance Differential 2 MΩ
Common Mode 0.5 MΩ
PSRR Power Supply Rejection Ratio, RTI V
S
= ±1.35V to ±18V 82 100 dB
Minimum Supply Voltage Guaranteed by PSRR ±1.2 ±1.35 V
I
S
Supply Current 140 180 µA
V
OUT
Output Voltage Swing ±14.5 ±14.79 V
LT1990H
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage, RTI V
S
= 3V, 0V
G = 1, 10
● 5.2 mV
V
S
= 5V, 0V
G = 1, 10
● 5.2 mV
V
OS
/T Input Offset Voltage Drift, RTI (Note 10) ● 522µV/°C
V
OSH
Input Offset Voltage Hysteresis, RTI (Note 11) ● 250 µV
PSRR Power Supply Rejection Ratio, RTI V
S
= 2.7V to 12.7V
V
CM
= V
REF
= 1.25V ● 75 dB
Minimum Supply Voltage Guaranteed by PSRR ● 2.7 V
I
S
Supply Current (Note 8) ● 200 µA
V
OL
Output Voltage Swing LOW –IN = V
+
, +IN = Half Supply (Note 8) ● 80 mV
V
OH
Output Voltage Swing HIGH –IN = 0V, +IN = Half Supply
V
S
= 3V, 0V, Below V
+
● 230 mV
V
S
= 5V, 0V, Below V
+
● 275 mV
I
SC
Output Short-Circuit Current Short to GND (Note 9) ● 1mA
Short to V
+
(Note 9) ● 5mA
The ● denotes the specifications which apply over the temperature range of –40°C ≤ T
A
≤ 125°C. V
S
= 3V, 0V; V
S
= 5V, 0V; R
L
= 10k,
V
CM
= V
REF
= half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6)
3V/5V ELECTRICAL CHARACTERISTICS