LINER LT1009 2.5v reference Datasheet

LT1009 Series
2.5V Reference
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FEATURES
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DESCRIPTIO
Maximum Initial Tolerance: 0.2%
Guaranteed Temperature Stability
Maximum 0.6Ω Dynamic Impedance
Wide Operating Current Range
Directly Interchangeable with LM136 for Improved
Performance
No Adjustments Needed for Minimum Temperature
Coefficient
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APPLICATIO S
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Reference for 5V Systems
8-Bit A/D and D/A Reference
Digital Voltmeters
Current Loop Measurement and Control Systems
Power Supply Monitor
Even though no adjustments are needed with the LT1009,
a third terminal allows the reference voltage to be adjusted
±5% to calibrate out system errors. In many applications,
the LT1009 can be used as a pin-to-pin replacement of the
LM136 and the external trim network eliminated.
For a lower drift 2.5V reference, see the LT1019 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
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The LT®1009 is a precision trimmed 2.5V shunt regulator
diode featuring a maximum initial tolerance of only ±5mV.
The low dynamic impedance and wide operating current
range enhances its versatility. The 0.2% reference tolerance is achieved by on-chip trimming which not only
minimizes the initial voltage tolerance but also minimizes
the temperature drift.
TYPICAL APPLICATION
2.5V Reference
Output Voltage
2.53
5V TO 35V
OUTPUT
LT1009
10k*
TRIM
*DOES NOT AFFECT
TEMPERATURE COEFFICIENT.
±5% TRIM RANGE
REFERENCE VOLTAGE (V)
2.52
3.6k
2.51
GUARANTEED
MAXIMUM
TYPICAL
2.50
2.49
GUARANTEED
MINIMUM
2.48
1009 TA01
2.47
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
1009 TA02
1
LT1009 Series
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W W
W
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Reverse Current .................................................... 20mA
Forward Current ................................................... 10mA
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Operating Temperature Range
LT1009/LT1009C .................................. 0°C to 70°C
LT1009I ........................................... – 40°C to 85°C
LT1009M ........................................ –55°C to 125°C
W
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PACKAGE/ORDER INFORMATION
BOTTOM VIEW
ADJ
TOP VIEW
+
–
BOTTOM VIEW
NC 1
8
NC 2
7
NC 3
6
4
5
H PACKAGE
3-LEAD TO-46 METAL CAN
NC
ORDER PART NUMBER
2
–
1
Z PACKAGE
3-LEAD PLASTIC TO-92
TJMAX = 100°C, θJA = 160°C/ W
TJMAX = 150°C, θJA = 190°C/ W
ORDER PART NUMBER
LT1009S8
LT1009IS8
LT1009MH
LT1009CH
+
ADJ
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 440°C/ W, θJC = 80°C/ W
ADJ
3
ORDER PART NUMBER
LT1009CZ
LT1009IZ
S8 PART MARKING
1009
1009I
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AVAILABLE OPTIO S
TEMPERATURE
0°C to 70°C
–40°C to 85°C
–55°C to 125°C
2
ACCURACY
(%)
TEMPERATURE
COEFFICIENT
(ppm/°C)
0.20
0.40
25
25
0.20
0.40
25
35
0.20
35
TO-46
(H)
PACKAGE STYLE
SO-8
(S8)
LT1009CH
TO-92
(Z)
LT1009CZ
LT1009S8
LT1009IZ
LT1009IS8
LT1009MH
LT1009 Series
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
For MIL-STD components, please refer to LTC883C data sheet for test listing and parameters.
SYMBOL PARAMETER
Reverse Breakdown
VZ
Voltage
∆VZ
Reverse Breakdown
∆IR
Change with Current
rZ
Reverse Dynamic
Impedance
CONDITIONS
TA = 25°C, IR = 1mA,
H, Z Pkg
S Pkg
400µA ≤ IR ≤ 10mA
●
IR = 1mA
●
Temperature Stability TMIN ≤ TA ≤ TMAX
Average Temperature
0°C ≤ TA ≤ 70°C
Coefficient (Notes 2, 3)
– 40°C ≤ TA ≤ 85°C
– 55°C ≤ TA ≤ 125°C
Long-Term Stability
TA = 25°C ±0.1°C
IR = 1mA
∆VZ
∆Temp
∆VZ
∆Time
LT1009M
MIN TYP MAX
2.495 2.500 2.505
2.6
3.0
0.2
0.4
6
10
0.6
1.0
15
15
25
●
25
20
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Guaranteed by Design.
LT1009I
LT1009/LT1009C
MIN TYP MAX MIN TYP MAX
2.495 2.500 2.505 2.495 2.500 2.505
2.49 2.50 2.51 2.49 2.50 2.51
2.6
10
2.6
10
3.0
12
3.0
12
0.2 1.0
0.2 1.0
0.4 1.4
0.4 1.4
15
25
35
15
1.8
15
4
25
35
20
20
UNITS
V
V
mV
mV
Ω
Ω
mV
ppm/°C
ppm/°C
ppm/°C
ppm/kHr
Note 3: Average temperature coefficient is defined as the total voltage
change divided by the specified temperature change.
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TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics
Reverse Voltage Change
Forward Characteristics
10 –1
5
1.2
REVERSE VOLTAGE CHANGE (mV)
TJ = 25°C
10 –2
FORWARD VOLTAGE (V)
REVERSE CURRENT (A)
1.0
10 –3
TJ = 25°C
10 –4
TJ = 125°C
0.8
0.6
0.4
0.2
4
3
2
1
TJ = –55°C
10 –5
0.5
1.0
1.8
2.2
1.4
REVERSE VOLTAGE (V)
2.6
0
0.001
0
0.01
0.1
1
10
FORWARD CURRENT (mA)
0
4
12
16
8
REVERSE CURRENT (mA)
20
1009 G02
1009 G01
1009 G03
3
LT1009 Series
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TYPICAL PERFORMANCE CHARACTERISTICS
Dynamic Impedance
Output Noise Voltage
100
IR = 1mA
–55°C ≤ TJ ≤ 125°C
IR = 1mA
TJ = 25°C
3.0
VOLTAGE SWING (V)
1
OUTPUT
2.5
200
10
NOISE (mV/√Hz)
DYNAMIC IMPEDANCE (Ω)
Response Time
3.5
250
150
100
2.0
1.5
5k
1.0
0.5
INPUT
OUTPUT
0
10
INPUT
4
0.1
100
10
1k
10k
FREQUENCY (Hz)
50
100k
0
10
1k
100
10k
1
TIME (µs)
0
100k
FREQUENCY (Hz)
1009 G04
1009 G06
1009 G05
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SCHE ATIC DIAGRA
+
50k
Q17
Q9
24k
24k
6.6k
Q8
Q7
20pF
30pF
10k
Q16
500Ω
Q10
Q2
Q11
Q15
ADJ
30k
6.6k
Q4
Q1
Q6
Q3
Q5
Q12
Q13
2k
Q14
1.1k
Q18
–
1009 SD
4
20
LT1009 Series
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TYPICAL APPLICATIONS
Wide Supply Range, Adjustable Reference
Low Temperature Coefficient Power Regulator
3.6V TO 40V
V+
VIN
LM334
V–
R
IN
LT317A
OUT
ADJ
62Ω
375Ω
LT1009
10k
LT1009
VOUT
1.2k
1009 TA03
2k
1009 TA04
Switchable ±1.25V Bipolar Reference
5V
5k
5V
5k
LT1009
–5V
10k
1%
OUT
9.76k
1%
500Ω
1009 TA05
5k
–5V
5
LT1009 Series
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PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
H Package
2-Lead and 3-Lead TO-46 Metal Can
(LTC DWG # 05-08-1340)
0.209 – 0.219
(5.309 – 5.537)
0.178 – 0.195
(4.521 – 4.953)
REFERENCE
PLANE
0.085 – 0.105
(2.159 – 2.667)
0.050
(1.270)
TYP
0.500
(12.700)
MIN
0.100
(2.540)
TYP
0.050
(1.270)
TYP
PIN 1
FOR 3-LEAD PACKAGE ONLY
*
45°
0.025
(0.635)
MAX
0.036 – 0.046
(0.914 – 1.168)
0.016 – 0.021**
(0.406 – 0.533)
DIA
0.028 – 0.048
(0.711 – 1.219)
H02/03(TO-46) 1098
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
0.016 – 0.024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610)
Z Package
3-Lead Plastic TO-92 (Similar to TO-226)
(LTC DWG # 05-08-1410)
0.060 ± 0.005
(1.524± 0.127)
DIA
0.180 ± 0.005
(4.572 ± 0.127)
0.180 ± 0.005
(4.572 ± 0.127)
0.060 ± 0.010
(1.524 ± 0.254)
0.90
(2.286)
NOM
0.140 ± 0.010
(3.556 ± 0.127)
Z3 (TO-92) 1098
0.500
(12.70)
MIN
0.050 UNCONTROLLED
(1.270) LEAD DIMENSION
MAX
5°
NOM
0.015 ± 0.002
(0.381 ± 0.051)
0.050
(1.27)
BSC
6
0.016 ± 0.003
(0.406 ± 0.076)
10° NOM
LT1009 Series
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PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
8
7
6
5
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
1
0.010 – 0.020
× 45°
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
2
3
4
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.050
(1.270)
BSC
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SO8 1298
7
LT1009 Series
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TYPICAL APPLICATION
Low Noise 2.5V Buffered Reference
1µF
VIN ≥ 6V
10k
2
1k
10k
1k
+
7
LT1001C
3
+
6
2.5V
4
20µF
100k
LT1009
–
+
20µF
1009 TA06
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1019
Precision Series Reference
Bandgap, 0.05%, 5ppm/°C
LT1236
Precision Series Reference
5V and 10V Zener-Based 5ppm/°C, SO-8 Package
LTC®1798
Micropower Low Dropout Series Reference
0.15% Max, 6.5µA Supply Current
LT1460
Micropower Precision Series Reference
Bandgap, 130µA Supply Current 10ppm/°C, Available in SOT-23
LT1634
Micropower Precision Shunt Voltage Reference
Bandgap 0.05%, 10ppm/°C, 10µA Supply Current
LT1461
Micropower Precision Series Reference
0.04% Max, 3ppm/°C Max, 35µA Supply Current
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Linear Technology Corporation
1009sfa LT/TP 0200 2K REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com
 LINEAR TECHNOLOGY CORPORATION 1985
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