Datasheet LT1009CH, LT1009S8, LT1009IZ, LT1009IS8, LT1009CZ Datasheet (Linear Technology)

FEATURES

LT1009 Series

2.5V Reference

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DESCRIPTIO

■

Maximum Initial Tolerance: 0.2%

■

Guaranteed

■

Maximum 0.6Ω Dynamic Impedance

■

Wide Operating Current Range

■

Directly Interchangeable with LM136 for Improved

Temperature Stability

Performance

■

No Adjustments Needed for Minimum Temperature
Coefficient

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APPLICATIO S

■

Reference for 5V Systems

■

8-Bit A/D and D/A Reference

■

Digital Voltmeters

■

Current Loop Measurement and Control Systems

■

Power Supply Monitor

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TYPICAL APPLICATION

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.

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.

2.5V Reference

5V TO 35V

3.6k

LT1009

*DOES NOT AFFECT
TEMPERATURE COEFFICIENT.
±5% TRIM RANGE

10k*
TRIM

OUTPUT

1009 TA01

Output Voltage

2.53

2.52

–25 0

GUARANTEED

MAXIMUM

GUARANTEED

TEMPERATURE (°C)

2.51

2.50

2.49

REFERENCE VOLTAGE (V)

2.48

2.47
–50

MINIMUM

50 100 125

25 75

TYPICAL

1009 TA02

1

LT1009 Series

WWWU

ABSOLUTE AXI U RATI GS

(Note 1)

Reverse Current.................................................... 20mA

Forward Current ................................................... 10mA

Storage Temperature Range ................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300°C

UU

W

PACKAGE/ORDER I FOR ATIO

BOTTOM VIEW

+

ADJ

–

H PACKAGE

3-LEAD TO-46 METAL CAN

T

= 150°C, θJA = 440°C/ W, θJC = 80°C/W

JMAX

OBSOLETE PACKAGE

Consider the MS8, S8 or Z Packages for Alternate Source

TOP VIEW

1

NC
NC

2

NC

3

(–)

4

S8 PACKAGE

8-LEAD PLASTIC SO

T

= 150°C, θJA = 190°C/W

JMAX

8

(+)

7

NC

6

(+)

5

ADJ

ORDER PART

NUMBER

LT1009MH
LT1009CH

ORDER PART

NUMBER

LT1009S8
LT1009IS8

S8 PART MARKING

1009
1009I

Operating Temperature Range

LT1009/LT1009C .................................. 0°C to 70°C

LT1009I........................................... – 40°C to 85°C

LT1009M (OBSOLETE)................... –55°C to 125°C

ORDER PART

TOP VIEW

NC

1

NC

2

NC

3

(–)

4

MS8 PACKAGE

8-LEAD PLASTIC MSOP

T

= 150°C, θJA = 250°C/W

JMAX

BOTTOM VIEW

+

ADJ

8

(+)

7

NC

6

(+)

5

ADJ

–

NUMBER

LT1009CMS8

MS8 PART MARKING

LTQZ

ORDER PART

NUMBER

LT1009CZ
LT1009IZ

Z PACKAGE

3-LEAD PLASTIC TO-92

T

= 100°C, θJA = 160°C/ W

JMAX

Consult LTC Marketing for parts specified with wider operating temperature ranges.

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AVAILABLE OPTIO S

TEMPERATURE

ACCURACY COEFFICIENT

TEMPERATURE

0°C to 70°C 0.20 25 LT1009CH LT1009CZ

–40°C to 85°C 0.20 35 LT1009IZ

–55°C to 125°C 0.20 35 LT1009MH

(%) (ppm/°C) OBSOLETE (MS8) (S8) (Z)

0.40 25 LT1009CMS8 LT1009S8

0.40 35 LT1009IS8

PACKAGE STYLE

TO-46 (H) MSOP-8 SO-8 TO-92

2

LT1009 Series

ELECTRICAL CHARACTERISTICS

The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.

LT1009M LT1009I LT1009/LT1009C

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS

V

Z

∆V
∆I

r

Z

∆V
∆Temp Coefficient (Notes 2, 3) – 40°C ≤ T

∆V
∆Time

Reverse Breakdown TA = 25°C, IR = 1mA, H, Z Pkg 2.495 2.500 2.505 2.495 2.500 2.505 2.495 2.500 2.505 V
Voltage MS, S Pkg 2.49 2.50 2.51 2.49 2.50 2.51 V

Reverse Breakdown 400µA ≤ IR ≤ 10mA 2.6 6 2.6 10 2.6 10 mV

Z

Change with Current ● 3.0 10 3.0 12 3.0 12 mV

R

Reverse Dynamic IR = 1mA 0.2 0.6 0.2 1.0 0.2 1.0 Ω
Impedance

Temperature Stability T
Average Temperature 0°C ≤ TA ≤ 70°C 15 25 15 25 15 25 ppm/°C

Z

Long-Term Stability TA = 25°C ±0.1°C, IR = 1mA 20 20 20 ppm/kHr

Z

≤ TA ≤ T

MIN

–55°C ≤ T

MAX

≤ 85°C 35 ppm/°C

A

≤ 125°C 25 35 ppm/°C

A

● 0.4 1.0 0.4 1.4 0.4 1.4 Ω

● 15 15 1.8 4 mV

Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.

Note 3: Average temperature coefficient is defined as the total voltage
change divided by the specified temperature change.

Note 2: Guaranteed by Design.

UW

TYPICAL PERFOR A CE CHARACTERISTICS

Reverse Characteristics

–1

10

–2

10

–3

10

TJ = 25°C

TJ = 125°C

–4

REVERSE CURRENT (A)

10

–5

10

0.5

1.0
REVERSE VOLTAGE (V)

1.4

TJ = –55°C

1.8

2.2

2.6

1009 G01

Forward Characteristics

1.2
TJ = 25°C

1.0

0.8

0.6

0.4

FORWARD VOLTAGE (V)

0.2

0

0.001

0.01 0.1 1 10
FORWARD CURRENT (mA)

1009 G02

Reverse Voltage Change

5

4

3

2

1

REVERSE VOLTAGE CHANGE (mV)

0

4

0

8

REVERSE CURRENT (mA)

12

16

20

1009 G03

3

LT1009 Series

UW

TYPICAL PERFOR A CE CHARACTERISTICS

Dynamic Impedance Output Noise Voltage

100

IR = 1mA
–55°C ≤ T

10

1

DYNAMIC IMPEDANCE (Ω)

0.1
10

≤ 125°C

J

100 1k 10k 100k

FREQUENCY (Hz)

1009 G04

250

200

150

NOISE (pV/√Hz)

100

50

10 100k

WW

SCHE ATIC DIAGRA

100

FREQUENCY (Hz)

Q7

Response Time

IR = 1mA
T

= 25°C

J

1k

10k

1009 G05

3.5

3.0

2.5

2.0

1.5

1.0

0.5
0

VOLTAGE SWING (V)

10

4
0

0

INPUT

OUTPUT

5k

INPUT

1

TIME (µs)

OUTPUT

20

1009 G06

+

Q11

24k

Q8

Q7

20pF

10k

Q2

Q1

Q3

Q4

Q5

30pF

Q10

Q9

Q6

Q12

720Ω

24k

Q13

6.6k

500Ω

6.6k

30k

1009 SD

ADJ

–

4

TYPICAL APPLICATIO S

Wide Supply Range, Adjustable Reference Low Temperature Coefficient Power Regulator

LT1009 Series

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3.6V TO 40V

+

V

–

V

LT1009

LM334

IN

LT317A

IN OUT

ADJ

LT1009

1.2k

V

R

62Ω

10k

1009 TA03

375Ω

2k

V

OUT

1009 TA04

Switchable ±1.25V Bipolar Reference

5V

5k

5V

–5V

5k

LT1009

10k
1%

OUT

9.76k
1%

–5V

500Ω

1009 TA05

5k

5

LT1009 Series

PACKAGE DESCRIPTIO

0.209 – 0.219

(5.309 – 5.537)

0.178 – 0.195

(4.521 – 4.953)

0.500

(12.700)

REFERENCE

PLANE

MIN

0.016 – 0.021**
(0.406 – 0.533)

DIA

**

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H Package

2-Lead and 3-Lead TO-46 Metal Can

(LTC DWG # 05-08-1340)

0.085 – 0.105

(2.159 – 2.667)

*

0.025

(0.635)

MAX

*

LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE

FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS

(1.270)

0.036 – 0.046

(0.914 – 1.168)

0.050

TYP

0.100

(2.540)

TYP

PIN 1

45°

0.016 – 0.024

(0.406 – 0.610)

0.050

(1.270)

TYP

FOR 3-LEAD PACKAGE ONLY

0.028 – 0.048

(0.711 – 1.219)

H02/03(TO-46) 1098

OBSOLETE PACKAGE

MS8 Package

8-Lead Plastic MSOP

(Reference LTC DWG # 05-08-1660)

0.118 ± 0.004*
(3.00 ± 0.102)

0.193 ± 0.006

(4.90 ± 0.15)

0.007

(0.18)

0.021

± 0.006

(0.53 ± 0.015)

* DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH,

PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.

INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

° – 6° TYP

0

SEATING

PLANE

0.009 – 0.015
(0.22 – 0.38)

0.043
(1.10)

MAX

8

12

0.0256
(0.65)

BSC

7

6

5

4

3

0.118 ± 0.004**
(3.00 ± 0.102)

0.034
(0.86)

REF

0.005

± 0.002

(0.13 ± 0.05)

MSOP (MS8) 1100

6

PACKAGE DESCRIPTIO

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S8 Package

8-Lead Plastic Small Outline (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1610)

0.189 – 0.197*
(4.801 – 5.004)

7

8

6

LT1009 Series

5

0.060 ± 0.005

(1.524± 0.127)

DIA

0.180 ± 0.005

(4.572 ± 0.127)

0.228 – 0.244

(5.791 – 6.197)

0.010 – 0.020

(0.254 – 0.508)

0.008 – 0.010

(0.203 – 0.254)

*

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

× 45°

0°– 8° TYP

0.016 – 0.050

(0.406 – 1.270)

Z Package

3-Lead Plastic TO-92 (Similar to TO-226)

(Reference LTC DWG # 05-08-1410)

0.180 ± 0.005

(4.572 ± 0.127)

0.90

(2.286)

NOM

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

TYP

0.150 – 0.157**
(3.810 – 3.988)

1

3

2

4

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

SO8 1298

0.500

(12.70)

MIN

5°

0.050

UNCONTROLLED
LEAD DIMENSION

(1.270)

MAX

0.016 ± 0.003

0.050
(1.27)

BSC

321

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.

(0.406 ± 0.076)

0.060 ± 0.010

(1.524 ± 0.254)

0.140 ± 0.010

(3.556 ± 0.127)

10° NOM

NOM

0.015 ± 0.002

(0.381 ± 0.051)

0.098 +016/–0.04
(2.5 +0.4/–0.1)

2 PLCS

REFER TO TAPE AND REEL SECTION OF

LTC DATA BOOK FOR ADDITIONAL INFORMATION

Z3 (TO-92) 0401

TO-92 TAPE AND REEL

7

LT1009 Series

TYPICAL APPLICATIO

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Low Noise 2.5V Buffered Reference

V

≥ 6V

IN

1µF

10k

1k

LT1009

100k

2

1k10k

3

+

20µF

+

20µF

–

LT1001C

+

7

6

2.5V

4

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

8

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

[phone] ● FAX: [phone]

●

www.linear-tech.com

1009fc LT/TP 0501 1.5K REV C • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 1985