Datasheet

LT1884/LT1885
4
The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
Single supply operation V
EE
= 0, V
CC
= 5V; V
CM
= V
CC
/2 unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Offset Voltage Match (LT1884A) 30 70 µV
0°C < T
A
< 70°C 125 µV
–40°C < T
A
< 85°C 160 µV
Offset Voltage Match (LT1884/LT1885) (Note 7) 35 125 µV
0°C < T
A
< 70°C 195 µV
–40°C < T
A
< 85°C 235 µV
Offset Voltage Match Drift (Notes 6, 7) 0.4 1.2 µV/°C
I
B
+ Noninverting Bias Current Match 200 600 pA
(LT1884A) 0°C < T
A
< 70°C 700 pA
–40°C < T
A
< 85°C 850 pA
Noninverting Bias Current Match (Notes 7, 9) 250 1200 pA
(LT1884/LT1885) 0°C < T
A
< 70°C 1600 pA
–40°C < T
A
< 85°C 1900 pA
CMRR Common Mode Rejection Match (Notes 7, 9) 104 125 dB
PSRR Positive Power Supply Rejection Match V
EE
= 0, V
CM
= 1.5V
(Notes 7, 9) 0°C < T
A
< 85°C, 2.7V < V
CC
< 32V 104 126 dB
T
A
= –40°C, 3V < V
CC
< 32V 104 126 dB
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
Split supply operation V
S
= ±15V; V
CM
= 0V unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (LT1884A) 25 50 µV
0°C < T
A
< 70°C 85 µV
–40°C < T
A
< 85°C 110 µV
Input Offset Voltage (LT1884/LT1885) 30 80 µV
0°C < T
A
< 70°C 125 µV
–40°C < T
A
< 85°C 150 µV
Input Offset Voltage Drift (Note 6) 0°C < T
A
< 70°C 0.3 0.8 µV/°C
–40°C < T
A
< 85°C 0.3 0.8 µV/°C
I
OS
Input Offset Current (LT1884A) 150 300 pA
0°C < T
A
< 70°C 400 pA
–40°C < T
A
< 85°C 500 pA
Input Offset Current (LT1884/LT1885) 150 900 pA
0°C < T
A
< 70°C 1200 pA
–40°C < T
A
< 85°C 1400 pA
I
B
Input Bias Current (LT1884A) 150 400 pA
0°C < T
A
< 70°C 500 pA
–40°C < T
A
< 85°C 600 pA
Input Bias Current (LT1884/LT1885) 150 900 pA
0°C < T
A
< 70°C 1200 pA
–40°C < T
A
< 85°C 1400 pA
Input Noise Voltage 0.1Hz to 10Hz 0.4 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 9.5 nV/Hz
i
n
Input Noise Current Density f = 1kHz 0.05 pA/Hz
V
CM
Input Voltage Range V
EE
+ 1.0 V
CC
– 1.0 V
V
EE
+ 1.2 V
CC
– 1.2 V
CMRR Common Mode Rejection Ratio 13.5V < V
CM
< 13.5V 114 130 dB