Datasheet

3
LT1168
1168fa
LT1168AC LT1168C
SYMBOL PARAMETER CONDITIONS (Note 6) MIN TYP MAX MIN TYP MAX UNITS
Gain Error G = 1 ● 0.01 0.03 0.012 0.04 %
G = 10 (Note 7)
● 0.40 1.5 0.500 1.6 %
G = 100 (Note 7)
● 0.45 1.6 0.550 1.7 %
G = 1000 (Note 7)
● 0.50 1.7 0.600 1.8 %
Gain Nonlinearity V
OUT
= ±10V, G = 1 ● 2 15 3 20 ppm
(Notes 7, 8) V
OUT
= ±10V, G = 10 and 100 ● 7 30 10 35 ppm
V
OUT
= ±10V, G = 1000 ● 25 60 30 80 ppm
∆G/∆T Gain vs Temperature G < 1000 (Note 7) ● 100 200 100 200 ppm/°C
LT1168AC/LT1168AI LT1168C/LT1168I
SYMBOL PARAMETER CONDITIONS (Note 6) MIN TYP MAX MIN TYP MAX UNITS
C
IN(DIFF)
Differential Input Capacitance f
O
= 100kHz 1.6 1.6 pF
C
IN(CM)
Common Mode Input f
O
= 100kHz 1.6 1.6 pF
Capacitance
V
CM
Input Voltage Range G = 1, Other Input Grounded
V
S
= ±2.3V to ±5V –V
S
+ 1.9 +V
S
– 1.2 –V
S
+ 1.9 +V
S
– 1.2 V
V
S
= ±5V to ±18V –V
S
+ 1.9 +V
S
– 1.4 –V
S
+ 1.9 +V
S
– 1.4 V
CMRR Common Mode 1k Source Imbalance,
Rejection Ratio V
CM
= 0V to ±10V
G = 1 90 95 85 95 dB
G = 10 106 115 100 115 dB
G = 100 120 135 110 135 dB
G = 1000 126 140 120 140 dB
PSRR Power Supply V
S
= ±2.3V to ±18V
Rejection Ratio G = 1 103 108 100 108 dB
G = 10 122 128 118 128 dB
G = 100 131 145 126 145 dB
G = 1000 135 150 130 150 dB
I
S
Supply Current V
S
= ±2.3V to ±18V 350 530 350 530 µA
V
OUT
Output Voltage Swing R
L
= 10k
V
S
= ±2.3V to ±5V –V
S
+ 1.1 +V
S
– 1.2 –V
S
+ 1.1 +V
S
– 1.2 V
V
S
= ±5V to ±18V –V
S
+ 1.2 +V
S
– 1.3 –V
S
+ 1.2 +V
S
– 1.3 V
I
OUT
Output Current 20 32 20 32 mA
BW Bandwidth G = 1 400 400 kHz
G = 10 200 200 kHz
G = 100 13 13 kHz
G = 1000 1 1 kHz
SR Slew Rate G = 1, V
OUT
= ±10V 0.3 0.5 0.3 0.5 V/µs
Settling Time to 0.01% 10V Step
G = 1 to 100 30 30 µs
G = 1000 200 200 µs
REFIN Reference Input Resistance 60 60 kΩ
I
REFIN
Reference Input Current V
REF
= 0V 18 18 µA
V
REF
Reference Voltage Range –V
S
+ 1.6 +V
S
– 1.6 –V
S
+ 1.6 +V
S
– 1.6 V
A
VREF
Reference Gain to Output 1 ± 0.0001 1 ± 0.0001
T
A
= 25°C. V
S
= ±15V, V
CM
= 0V, R
L
= 10k unless otherwise noted.
The ● denotes the specifications which apply over the 0°C ≤ T
A
≤ 70°C temperature range. V
S
= ±15V, V
CM
= 0V, R
L
= 10k unless
otherwise noted.
ELECTRICAL CHARACTERISTICS