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Linear Technology Electronic Components Datasheet

LT1012 Datasheet

Picoamp Input Current / Microvolt Offset / Low Noise Op Amp

No Preview Available !

LT1012 pdf
FEATURES
s OP-07 Type Performance:
at 1/8th of OP-07’s Supply Current
at 1/20th of OP-07’s Bias and Offset Currents
s Guaranteed Offset Voltage: 25µV Max
s Guaranteed Bias Current: 100pA Max
s Guaranteed Drift: 0.6µV/°C Max
s Low Noise, 0.1Hz to 10Hz: 0.5µVP-P
s Guaranteed Low Supply Current: 500µA Max
s Guaranteed CMRR: 114dB Min
s Guaranteed PSRR: 114dB Min
s
Guaranteed
Operation
U
at
±1.2V
Supplies
APPLICATIO S
s Replaces OP-07 While Saving Power
s Precision Instrumentation
s Charge Integrators
s Wide Dynamic Range Logarithmic Amplifiers
s Light Meters
s Low Frequency Active Filters
s Thermocouple Amplifiers
LT1012A/LT1012
Picoamp Input Current,
Microvolt Offset,
Low Noise Op Amp
DESCRIPTIO
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Protected by U. S. patents 4,575,685 and 4,775,884
TYPICAL APPLICATIO
± 250V Common Mode Range Instrumentation Amplifier (AV = 1)
–IN 3
R1
1M
COMMON
MODE
INPUT
± 250V
+IN 7
R3
1M
R5
975k
4
1
R2 6V TO 18V R6
20k 25k
27
LT1012
2
6
50k OPTIONAL
CMRR
TRIM
OUT
63 +
4
R1 TO R6: VISHAY 444
R4 ACCUTRACT THIN FILM
19.608k
SIP NETWORK
5 – 6V TO –18V X : 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
LT1012A • TA01
Typical Distribution of Input
Offset Voltage
200
1140 UNITS
FROM THREE
160 RUNS
VS = ±15V
TA = 25°C
VCM = 0V
120
80
40
0
– 40
– 20
0
20 40
INPUT OFFSET VOLTAGE (µV)
LT1012A • TA02
sn1012 1012afbs
1


Linear Technology Electronic Components Datasheet

LT1012 Datasheet

Picoamp Input Current / Microvolt Offset / Low Noise Op Amp

No Preview Available !

LT1012 pdf
LT1012A/LT1012
ABSOLUTE AXI U RATI GS (Note 1)
Supply Voltage ...................................................... ± 20V
Differential Input Current (Note 1) ...................... ± 10mA
Input Voltage ......................................................... ± 20V
Output Short Circuit Duration .......................... Indefinite
Operating Temperature Range
LT1012AM/LT1012M (OBSOLETE)....– 55°C to 125°C
LT1012I/LT1012AI ............................. – 40°C to 85°C
LT1012AC/LT1012C
LT1012D/LT1012S8 ................................ 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
VOS
TRIM
–IN
+IN
V
1
2
3
4
TOP VIEW
+
8
VOS
TRIM
7 V+
6 OUT
5
OVER
COMP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 100°C, θJA = 170°C/W
ORDER PART NUMBER
LT1012S8
LT1012IS8
LT1012ACS8
LT1012AIS8
S8 PART MARKING
1012
1012I
1012A
1012AI
TOP VIEW
VOS
TRIM
VOS
TRIM 1
8
–IN 2
+
7 V+
6 OUT
+IN
35
4
V (CASE)
OVER
COMP
H PACKAGE
8-LEAD TO-5 METAL CAN
TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W
ORDER PART NUMBER
LT1012AMH
LT1012MH
LT1012ACH
LT1012CH
LT1012DH
OBSOLETE PACKAGE
Consider the S8 or N8 Packages for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
VOS
TRIM
–IN
+IN
V
1
2
3
4
TOP VIEW
+
8
VOS
TRIM
7 V+
6 OUT
5
OVER
COMP
N8 PACKAGE
8-LEAD PDIP
TJMAX = 100°C, θJA = 130°C/W
ORDER PART NUMBER
LT1012ACN8
LT1012AIN8
LT1012CN8
LT1012DN8
LT1012IN8
2
sn1012 1012afbs


Part Number LT1012
Description Picoamp Input Current / Microvolt Offset / Low Noise Op Amp
Maker Linear Technology
Total Page 20 Pages
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