LT1012_15 Datasheet, PDF (7/20 Pages) Linear Technology – Picoamp Input Current, Microvolt Offset, Low Noise Op Amp

LT1012A/LT1012
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range of 0°C ≤ T_A ≤ 70°C. V_S = ± 15V, V_CM = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LT1012D
LT1012S8
MIN TYP MAX MIN TYP MAX UNITS
V_OS
Input Offset Voltage
(Note 3)
q
25
140
q
40
30
200
µV
45
270
µV
Average Temperature Coefficient of
Input Offset Voltage
q
0.3
1.7
0.3
1.8
µV/°C
I_OS
Input Offset Current
(Note 3)
q
35
380
q
45
60
380
pA
80
500
pA
Average Temperature Coefficient of
Input Offset Current
q
0.35
4.0
0.4
4.0
pA/°C
I_B
Input Bias Current
(Note 3)
q
± 50 ± 420
±100 ± 420
pA
q
± 65
±150 ± 550
pA
Average Temperature Coefficient of
Input Bias Current
q
0.4
5.0
0.5
5.0
pA/°C
A_VOL
Large-Signal Voltage Gain
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
V_OUT = ±12V, R_L ≥ 10kΩ q 150 1500
V_OUT = ±10V, R_L ≥ 2kΩ q 150 800
V_CM = ±13.5V
q 108 130
V_S = ±1.3V to ± 20V
q 108 128
q ±13.5
150 1500
100 800
108 130
108 128
±13.5
V/mV
V/mV
dB
dB
V
V_OUT
Output Voltage Swing
I_S
Supply Current
R_L = 10kΩ
q ±13 ±14
±13
±14
V
q
400 800
400 800
µA
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: These specifications apply for V_MIN ≤ V_S ≤ ± 20V and
–13.5V ≤ V_CM ≤ 13.5V (for V_S = ± 15V). V_MIN = ±1.2V at 25°C, ± 1.3V from
0°C to 70°C, ± 1.5V from – 55°C to 125°C.
Note 4: 10Hz noise voltage density is sample tested on every lot. Devices
100% tested at 10Hz are available on request.
Note 5: This parameter is tested on a sample basis only.
V⁺
5k TO 100k POT
1
2_–
8
LT1012
7 _{6 OUT}
3₊
5
4
C_S
V^–
LT1012A • EC01
Optional Offset Nulling and Overcompensation
Circuits
Input offset voltage can be adjusted over a ±800µV range
with a 5k to 100k potentiometer.
The LT1012 is internally compensated for unity gain
stability. The overcompensation capacitor, C_S, can be
used to improve capacitive load handling capability, to
narrow noise bandwidth, or to stabilize circuits with gain
in the feedback loop.
sn1012 1012afbs
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