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LT1019IN8-5 の電気的特性と機能
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LT1019IN8-5のメーカーはLinear Technologyです、この部品の機能は「Precision Reference」です。 |
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製品の詳細 ( Datasheet PDF )
| 部品番号 LT1019IN8-5 |
| 部品説明 Precision Reference |
| メーカ Linear Technology |
ロゴ |
このページの下部にプレビューとLT1019IN8-5ダウンロード（pdfファイル）リンクがあります。 Total 12 pages |
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LT1019
Precision Reference
FEATURES
s Tight Initial Output Voltage: < 0.05%
s Ultralow Drift: 3ppm/°C Typical
s Series or Shunt Operation
s Curvature Corrected
s Ultrahigh Line Rejection: ≈ 0.5ppm/V
s Low Output Impedance: ≈ 0.02Ω
s Plug-In Replacement for Present References
s Available at 2.5V, 4.5V, 5V, and 10V
s 100% Noise Tested
s Temperature Output
s Industrial Temperature Range in SO-8
U
APPLICATIO S
s Negative Shunt References
s A/D and D/A Converters
s Precision Regulators
s Constant Current Sources
s V/F Converters
s Bridge Excitation
DESCRIPTIO
The LT®1019 is a third generation bandgap voltage refer-
ence utilizing thin film technology and a greatly improved
curvature correction technique. Wafer level trimming of
both reference and output voltage combines to produce
units with high yields to very low TC and tight initial
tolerance of output voltage.
The LT1019 can both sink and source up to 10mA and can
be used in either the series or shunt mode. This allows the
reference to be used for both positive and negative output
voltages without external components. Minimum input/
output voltage is less than 1V in the series mode, providing
improved tolerance of low line conditions.
The LT1019 is available in four voltages: 2.5V, 4.5V, 5V
and 10V. It is a direct replacement for most bandgap
references presently available including AD580, AD581,
REF-01, REF-02, MC1400, MC1404 and LM168.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
15V 357Ω*
0.5W 5V
IN OUT
LT1019-5
GND
+
A1†
LT1637
–
Ultralinear Strain Guage
350Ω
BRIDGE
ACTIVE
ELEMENT
– 5V
357Ω*
0.5W
– 15V
R3
2M
R2
20k –
R4 A2
20k +LT1001
GAIN = 100
R5
2M R6**
2M
LT1019 • TA01
*REDUCES REFERENCE AND AMPLIFIER
LOADING TO ≈0.
**IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
†A1 VOS AND DRIFT ARE NOT CRITICAL BECAUSE A2
ACTS AS A DIFFERENTIAL AMPLIFIER.
Output Voltage Drift
1.003
1.002
1.001
1.000
10ppm/°C
FULL TEMP RANGE “BOX”
LT1019
CURVE
0.999
5ppm/°C
0°C TO 70°C “BOX”
0.998
UNCOMPENSATED
“STANDARD” BANDGAP
0.997
–50 –25
DRIFT CURVE
0 25 50 75
TEMPERATURE (˚C)
100 125
1019 TA02
1
1 Page
AVAILABLE OPTIO S
OUTPUT
VOLTAGE
(V)
2.5
4.5
5
10
TEMPERATURE
(°C)
0 to 70
– 40 to 85
– 55 to 125
0 to 70
– 40 to 85
– 55 to 125
0 to 70
– 40 to 85
– 55 to 125
0 to 70
– 40 to 85
– 55 to 125
ACCURACY
(%)
0.05
0.2
0.05
0.2
0.05
0.2
0.05
0.2
0.2
0.05
0.2
0.05
0.2
0.05
0.2
0.05
0.2
0.05
0.2
0.2
0.05
0.2
TEMPERATURE
COEFFICIENT
(ppm/°C)
5
20
10
20
10
25
5
20
20
10
25
5
20
10
20
10
25
5
20
20
10
25
TO-5
H8
LT1019ACH-2.5
LT1019CH-2.5
LT1019AMH-2.5
LT1019MH-2.5
LT1019ACH-4.5
LT1019CH-4.5
LT1019AMH-4.5
LT1019MH-4.5
LT1019ACH-5
LT1019CH-5
LT1019AMH-5
LT1019MH-5
LT1019ACH-10
LT1019CH-10
LT1019AMH-10
LT1019MH-10
PACKAGE TYPE
SO-8
S8
LT1019ACS8-2.5
LT1019CS8-2.5
LT1019AIS8-2.5
LT1019IS8-2.5
LT1019CS8-4.5
LT1019ACS8-5
LT1019CS8-5
LT1019AIS8-5
LT1019IS8-5
LT1019CS8-10
LT1019
PDIP-8
N8
LT1019ACN8-2.5
LT1019CN8-2.5
LT1019IN8-2.5
LT1019ACN8-4.5
LT1019CN8-4.5
LT1019IN8-4.5
LT1019ACN8-5
LT1019CN8-5
LT1019IN8-5
LT1019ACN8-10
LT1019CN8-10
LT1019IN8-10
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 15V, IOUT = 0 unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LT1019A
MIN TYP MAX
LT1019
MIN TYP MAX
Output Voltage Tolerance
0.02 0.05
0.02 0.2
TC
∆VOUT
∆VIN
RR
Output Voltage
Temperature Coefficient
(Note 3)
Line Regulation (Note 4)
Ripple Rejection
LT1019C (0°C to 70°C)
LT1019I (– 40°C to 85°C)
LT1019M (– 55°C to 125°C)
(VOUT + 1.5V) ≤ VIN ≤ 40V
50Hz ≤ f ≤ 400Hz
q3
q3
q5
0.5
q 1.0
90 110
q 84
5
10
10
3
5
5 20
5 20
8 25
0.5 3
1.0 5
90 110
84
UNITS
%
ppm/°C
ppm/°C
ppm/°C
ppm/V
ppm/V
dB
dB
3
3Pages
LT1019
TYPICAL PERFOR A CE CHARACTERISTICS
Temp Pin Voltage
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
LT1019 • TPC10
Line Regulation
140
120
IOUT
TJ = 25°C
100
80
60
40 LT1019-10
20
LT1019-2.5
0
LT1019-5
– 10
– 20
– 30
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
LT1019 • TPC11
LT1019-2.5* Stability with
Output Capacitance
10
1
REGION OF POSSIBLE
0.1 INSTABILITY
0.01
0.001
0.0001
20
15 10 5 0 5 10 15 20
SINK CURRENT SOURCE CURRENT
OUTPUT CURRENT (mA)
1019 G12
*LT1019-4.5/LT1019-5/LT1019-10 ARE STABLE
WITH ALL LOAD CAPACITANCE.
W
BLOCK DIAGRA
TRIM
R3
80k
R2
LT1019-4.5, LT1019-5,
LT1019-10 = 5k
LT1019-2.5 = 10k
R1
LT1019-2.5 = 11k
LT1019-4.5 = 13.9k
LT1019-5 = 16k
LT1019-10 = 37.1k
1.188V
VIN
–
+
VOUT
GND
LT1019 • BD
UU W U
APPLICATIO S I FOR ATIO
Line and Load Regulation
Line regulation on the LT1019 is nearly perfect. A 10V
change in input voltage causes a typical output shift of less
than 5ppm. Load regulation (sourcing current) is nearly as
good. A 5mA change in load current shifts output voltage
by only 100µV. These are electrical effects, measured with
low duty cycle pulses to eliminate heating effects. In real
world applications, the thermal effects of load and line
changes must be considered.
Two separate thermal effects are evident in monolithic
circuits. One is a gradient effect, where power dissipation
on the die creates temperature gradients. These gradients
can cause output voltage shifts even if the overall tempera-
ture coefficient of the reference is zero. The LT1019, unlike
previous references, specifies thermal regulation caused
by die temperature gradients.The specification is
0.5ppm/mW. To calculate the effect on output voltage,
simply multiply the change in device power dissipation by
6
6 Page
合計 : 12 ページ |
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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。 |
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| 部品番号 | 部品説明 | メーカ |
| LT1019IN8-10 | Precision Reference | Linear Technology |
| LT1019IN8-2.5 | Precision Reference | Linear Technology |
| LT1019IN8-4.5 | Precision Reference | Linear Technology |
| LT1019IN8-5 | Precision Reference | Linear Technology |