4
LT1024
1024fa
LT1024AM/LT1024AC LT1024M/LT1024C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Input Offset Voltage Match 0°C to 70°C ● 35 170 45 300 µV
–55°C to 125°C
● 50 280 70 500 µV
Input Offset Voltage Tracking ● 0.3 2 0.4 3.5 µV/°C
I
B
+
Average Noninverting Bias Current 0°C to 70°C ● ±40 ±300 ±50 ±500 pA
–55°C to 125°C
● ±100 ±800 ±200 ±1400 pA
I
OS
+
Noninverting Offset Current 0°C to 70°C ● 40 300 50 500 pA
–55°C to 125°C
● 80 800 150 1500 pA
∆CMRR Common Mode Rejection Ratio Match V
CM
= ±13.5V ● 106 128 104 128 dB
∆PSRR Power Supply Rejection Ratio Match V
S
= ±2.5V to ±18V ● 106 128 104 128 dB
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Differential input voltages greater than 1V will cause excessive
current to flow through the input protection diodes unless limiting
resistance is used.
Note 3: The V
+
supply terminals are completely independent and may be
powered by separate supplies if desired (this approach, however, would
sacrifice the advantages of the power supply rejection ratio matching). The
V
–
supply terminals are both connected to the common substrate and
must be tied to the same voltage. Both V
–
pins should be used.
Note 4: This parameter is tested on a sample basis only.
Optional Offset Nulling Circuit
Offset Voltage vs Source
Resistance (Balanced or Unbalanced)
Input Offset Current vs
Temperature
14 (7)
5k TO 100k
POT
2(9)
1(8)
13
(6)
OUTPUT
INPUT OFFSET VOLTAGE CAN BE ADJUSTED
OVER A ±800µV RANGE WITH A 5k TO
100k POTENTIOMETER
1/2
LT1024
+
–
3
4
(10)
(11)
12 (5)
V
–
V
+
LT1024 • EC01
SOURCE RESISTANCE (Ω)
1k
1
INPUT OFFSET VOLTAGE (µV)
100
1000
100k10k 300k 1M 3M 10M30k3k
10
LT1024 • TPC01
25°C
–55°C TO 125°C
V
S
= ±15V
–50
INPUT OFFSET CURRENT (pA)
40
50
60
25 75
30
20
–25 0
50 100 125
10
0
TEMPERATURE (°C)
LT1024 • TPC02
V
S
= ±15V
V
CM
= 0V
Matching Specifications. The ●
denotes the specifications which apply over
the temperature range of 0°C ≤ T
A
= 70°C for the LT1024AC and LT1024C; –55°C ≤ T
A
≤ 125°C for the LT1024AM and LT1024M,
V
S
= ±15V, V
CM
= 0V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
UW
