|
LT1012 の電気的特性と機能
|
LT1012のメーカーはLinear Technologyです、この部品の機能は「Picoamp Input Current / Microvolt Offset / Low Noise Op Amp」です。 |
|
|
製品の詳細 ( Datasheet PDF )
| 部品番号 LT1012 |
| 部品説明 Picoamp Input Current / Microvolt Offset / Low Noise Op Amp |
| メーカ Linear Technology |
ロゴ |
このページの下部にプレビューとLT1012ダウンロード（pdfファイル）リンクがあります。 Total 20 pages |
No Preview Available ! |
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
2– 7
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
1 Page
LT1012A/LT1012
ELECTRICAL CHARACTERISTICS VS = ±15V, VCM = OV, TA = 25°C, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LT1O12AM/AC/AI
MIN TYP MAX
VOS Input Offset Voltage
(Note 3)
8 25
20 90
Long Term lnput Offset
Voltage Stability
0.3
IOS Input Offset Current
(Note 3)
15 100
25 150
IB Input Bias Current
(Note 3)
±25 ±100
±35 ±150
en
en
in
AVOL
CMRR
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Large Signal Voltage Gain
Common Mode Rejection
Ratio
0.1Hz to 10Hz
0.5
fO = 10Hz (Note 4)
fO = 1000Hz (Note 5)
17
14
fO = 10Hz
20
VOUT = ±12V, RL ≥ 10kΩ 300 2000
VOUT = ±10V, RL ≥ 2kΩ 300 1000
VCM = ±13.5V
114 132
30
22
PSRR
Power SuppIy Rejection Ratio VS = ±1.2V to ±20V
Input Voltage Range
114 132
±13.5 ±14
VOUT Output Voltage Swing
Slew Rate
RL = 10kΩ
±13 ±14
0.1 0.2
IS Supply Current
(Note 3)
370 500
380 600
LT1O12M/I
MIN TYP MAX
8 35
20 90
0.3
LT1O12C
MIN TYP MAX
10 50
25 120
0.3
15 100
25 150
20 150
30 200
±25 ±100
±35 ±150
±30 ±150
±40 ±200
0.5 0.5
17 30
14 22
17 30
14 22
20 20
300 2000
200 1000
200 2000
200 1000
114 132
110 132
114 132
±13.5 ±14
±13 ±14
0.1 0.2
380
380
110 132
±13.5 ±14
±13 ±14
0.1 0.2
380
600 380
600
UNITS
µV
µV
µV/month
pA
pA
pA
pA
µVP-P
nV√Hz
nV√Hz
fA/√Hz
V/mV
V/mV
dB
dB
V
V
V/µs
µA
µA
sn1012 1012afbs
3
3Pages
LT1012A/LT1012
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range of 0°C ≤ TA ≤ 70°C. VS = ± 15V, VCM = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LT1012AC
LT1012C
MIN TYP MAX MIN TYP MAX UNITS
VOS Input Offset Voltage
(Note 3)
q 20 60
q 30 160
20 100
30 200
µV
µV
Average Temperature Coefficient of
Input Offset Voltage
q 0.2 0.6
0.2 1.0 µV/°C
IOS Input Offset Current
(Note 3)
q 25 230
q 40 300
35 230
45 300
pA
pA
Average Temperature Coefficient of
Input Offset Current
q 0.3 2.5
0.3 2.5 pA/°C
IB Input Bias Current
(Note 3)
q
± 35 ± 230
± 35 ± 230
pA
q
± 50 ± 300
± 50 ± 300
pA
Average Temperature Coefficient of
Input Bias Current
q 0.3 2.5
0.3 2.5 pA/°C
AVOL Large-Signal Voltage Gain
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
VOUT = ±12V, RL ≥ 10kΩ
VOUT = ±10V, RL ≥ 2kΩ
VCM = 13.5V
VS = ±1.3V to ± 20V
q
q
q
q
q
200
200
110
110
±13.5
1500
1000
130
128
150
150
108
108
±13.5
1500
800
130
128
V/mV
V/mV
dB
dB
V
VOUT Output Voltage Swing
IS Supply Current
RL = 10kΩ
q ±13 ±14
±13 ±14
q 400 600
400 800
V
µA
6
sn1012 1012afbs
6 Page
合計 : 20 ページ |
| PDF ダウンロード [ LT1012 データシート.PDF ] |
|
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
|
|
| 部品番号 | 部品説明 | メーカ |
| LT101 | LT Series: 25/30 WATT Wide Input Range |  ETC |
| LT1010 | Fast +-150mA Power Buffer | Linear Technology |
| LT1011 | Voltage Comparator | Linear Technology |
| LT1012 | Picoamp Input Current / Microvolt Offset / Low Noise Op Amp | Linear Technology |