1
sn1012 1012afbs
LT1012A/LT1012
■
OP-07 Type Performance:
at 1/8th
of OP-07’s Supply Current
at 1/20th of OP-07’s Bias and Offset Currents
■
Guaranteed
Offset Voltage: 25µV Max
■
Guaranteed
Bias Current: 100pA Max
■
Guaranteed
Drift: 0.6µV/°C Max
■
Low Noise, 0.1Hz to 10Hz: 0.5µV
P-P
■
Guaranteed
Low Supply Current: 500µA Max
■
Guaranteed
CMRR: 114dB Min
■
Guaranteed
PSRR: 114dB Min
■
Guaranteed
Operation at ±1.2V Supplies
The LT
®
1012 is an internally compensated universal
precision operational amplifier which can be used in
practically all precision applications. The LT1012
combines picoampere bias currents (which are
maintained over the full –55°C to 125°C temperature
range), microvolt offset voltage (and low drift with time
and temperature), low voltage and current noise, and
low power dissipation. The LT1012 achieves precision
operation on two Ni-Cad batteries with 1mW of power
dissipation. Extremely high common mode and
power supply rejection ratios, practically unmeasurable
warm-up drift, and the ability to deliver 5mA load current
with a voltage gain of one million round out the LT1012’s
superb precision specifications.
The all around excellence of the LT1012 eliminates the
necessity of the time consuming error analysis procedure
of precision system design in many applications; the
LT1012 can be stocked as the universal internally
compensated precision op amp.
■
Replaces OP-07 While Saving Power
■
Precision Instrumentation
■
Charge Integrators
■
Wide Dynamic Range Logarithmic Amplifiers
■
Light Meters
■
Low Frequency Active Filters
■
Thermocouple Amplifiers
±250V Common Mode Range Instrumentation Amplifier (A
V
= 1)
Picoamp Input Current,
Microvolt Offset,
Low Noise Op Amp
Typical Distribution of Input
Offset Voltage
+IN
–IN
–
+
2
3
4
LT1012
7
6
LT1012A • TA01
R3
1M
R2
20k
R4
19.608k
R1
1M
R5
975k
–6V TO –18V
6V TO 18V
R6
25k
OUT
R1 TO R6: VISHAY 444
ACCUTRACT THIN FILM
OPTIONAL
CMRR
TRIM
50k
SIP NETWORK
: VISHAY 444 PIN NUMBERS
VISHAY INTERTECHNOLOGY, INC
63 LINCOLN HIGHWAY
MALVERN, PA 19355
COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED)
WITH OPTIONAL TRIM = 130dB
OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500µV
OUTPUT OFFSET DRIFT = 10µV/°C
INPUT RESISTANCE = 1M
COMMON
MODE
INPUT
±250V
X
3 4 1
2
7
6
5
INPUT OFFSET VOLTAGE (µV)
NUMBER OF UNITS
120
160
200
LT1012A • TA02
80
40
0
–40
–20
20 40
0
1140 UNITS
FROM THREE
RUNS
V
S
= ±15V
T
A
= 25°C
V
CM
= 0V
Protected by U. S. patents 4,575,685 and 4,775,884
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
