Datasheet LM336AH-2.5, LM336BZ-2.5, LM136AH-2.5, LM336H-2.5, LM336Z-2.5 Datasheet (Linear Technology)

FEATURES

■

Guaranteed

■

Maximum 0.6Ω Dynamic Impedance

■

Adjustable for Minimum Temperature Coefficient

■

Wide Operating Current Range

Temperature Stability

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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

, LTC and LT are registered trademarks of Linear Technology Corporation.

LM136-2.5/LM336-2.5

2.5V Reference

U

DESCRIPTIO

The LM136-2.5 is a general purpose shunt regulator diode
designed to operate over a wide current range while
maintaining good stability with time and temperature. The
third terminal allows either the temperature coefficient to
be minimized or the reference voltage to be adjusted
without changing the temperature coefficient. Because it
operates as a shunt regulator it can be used equally well as
a positive or negative reference.

The LM136-2.5 is available with initial tolerances as low as
1% in either a TO-46 metal can for hermetic requirements
or a low cost TO-92 plastic package.

Linear’s advanced design, test and process techniques
have optimized the LM136-2.5 to achieve superior perfor­mance and reliability over previous designs. For more
demanding precision reference applications requiring very
low initial tolerance and temperature coefficients, consult
the LT1009 data sheet. A typical 2.5V reference with trim
is shown below.

TYPICAL APPLICATIO

2.5V Reference

5V TO 35V

3.6k

LM336-2.5

*DOES NOT AFFECT

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OUTPUT

10k*
TRIM

TEMPERATURE
COEFFICIENT

136/336 TA01a

Reverse Voltage Change

3.5
TA = 25°C

3.0

2.5

2.0

1.5

1.0

REVERSE VOLTAGE CHANGE (mV)

0.5

0

24 810

0

REVERSE CURRENT (mA)

6

136/336 TA01b

1

LM136-2.5/LM336-2.5

WW

W

ABSOLUTE AXI U RATI GS

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(Note 1)

Operating Temperature Range

LM136-2.5 (OBSOLETE) .............. –55°C to 125°C

LM336-2.5 .............................................. 0°C to 70°C

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

UUW

PACKAGE/ORDER I FOR ATIO

BOTTOM VIEW

+

ADJ

–

H PACKAGE

3-LEAD TO-46 METAL CAN

T

= 150°C, θJA = 440°C/W

JMAX

(NOTE 2)

OBSOLETE PACKAGE

Consider the Z Packages for Alternate Source

ORDER PART

NUMBER

LM136H-2.5
LM136AH-2.5
LM336H-2.5
LM336AH-2.5

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

Reverse Current.................................................... 15mA

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

BOTTOM VIEW

+

ADJ

–

ORDER PART

NUMBER

LM336Z-2.5
LM336BZ-2.5

Z PACKAGE

3-LEAD PLASTIC TO-92

T

= 150°C, θJA = 160°C/W

JMAX

(NOTE 2)

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

ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 2)

LM136/LM136A LM336/LM336B

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

V

∆V

∆I

r

∆V

∆Temp T

∆V

∆Time

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

Note 2: The LT1009 is an improved, low cost, pin for pin replacement for
the “A” and “B” versions. For further information consult the LT1009 data
sheet.

Reverse Breakdown Voltage TA = 25°C, IR = 1mA

Z

Reverse Breakdown Change 400µA ≤ IR ≤ 10mA

Z

with Current TA = 25°C 2.6 6 2.6 10 mV

R

Reverse Dynamic Impedance IR = 1mA

Z

Temperature Stability VR Adjusted to 2.490V, IR = 1mA,

Z

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

Z

LM136/LM336 2.440 2.490 2.540 2.390 2.490 2.590 V
LM136A/LM336B 2.465 2.490 2.515 2.440 2.490 2.540 V

T

≤ TA ≤ T

MIN

T

=25°C 0.2 0.6 0.2 1.0 Ω

A

≤ TA ≤ T

T

MIN

≤ TA ≤ T

MIN

MAX

MAX

(See Figure 1) ● 12 18 1.8 6 mV

MAX

● 3.0 10 3.0 12 mV

● 0.4 1.0 0.4 1.4 Ω

+

V

R

1mA

*

2.490V

†

D1

D1, D2 1N4148

* ADJUST TO 2.490

5k

†

ANY SILICON
SIGNAL DIODE

†

D2

136/336 F01

2

Figure 1. Adjusting the LM336 for
Minimum Temperature Coefficient

UW

TYPICAL PERFOR A CE CHARACTERISTICS

LM136-2.5/LM336-2.5

Reverse Characteristics

–1

10

–2

10

–3

10

Tj = 25°C

–4

Tj = 125°C

REVERSE CURRENT (A)

10

Tj = –55°C

–5

10

0.6

1.0

1.4

REVERSE VOLTAGE (V)

1.8

Dynamic Impedance

100

IR = 1mA

≤ 125°C

–55°C ≤ T

j

10

1

DYNAMIC IMPEDANCE (Ω)

0.1
10 100 1k 10k 100k

FREQUENCY (Hz)

2.2

136/336 • G01

136/336 G04

2.6

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)

Zener Noise Voltage

250

200

150

NOISE (nV/√Hz)

100

50

10

100 1k

FREQUENCY (Hz)

IR = 1mA
T

10k

136/336 G02

= 25°C

j

136/336 G05

100k

Temperature Drift

2.59
IR = 1mA

2.57

2.55

2.53

2.51

2.49

2.47

2.45

REVERSE VOLTAGE (V)

2.43

2.41

2.39

2.37

–35

–55

TEMPERATURE (°C)

Response Time

3.5

3.0

2.5

2.0

1.5

1.0

0.5
0

VOLTAGE SWING (V)

12

8
4
0

INPUT

0

45 65

255–15

OUTPUT

5.1k

INPUT

120

TIME (µs)

85 105

136/336 G03

OUTPUT

136/336 G06

125

W

SCHE ATIC DIAGRA

Q2

Q1

Q3 Q5

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.

W

20pF

Q7

10k

Q4 Q6

Q8

30pF

Q12 Q14

50k

Q9

Q11Q10

Q13

2k 1.1k

Q15

24k

Q16

Q17

Q18

6.6k24k

500Ω

30k

6.6k

136/336 SD

+

ADJ

–

3

LM136-2.5/LM336-2.5

–

+

1N4148

1N4148

10k

+

+

*LM336Z-2.5

*

OP-07CH

2

3

4

6

7

1µF

20µF

20µF

10k

10k

100k

1k

1k

2.5V

V

IN

≥ 6V

136/336 TA05

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TYPICAL APPLICATIO S

Wide Supply
Range, Reference

3.6V TO 40V

+

V

LM334

–

V

LM336-2.5

R
62Ω

136/336 TA02

Low Temperature
Coefficient Power Regulator

LT317A

V

IN

IN

ADJ

*

ADJUST R2
FOR 3.75V
ACROSS R1

OUT

1.2k

1N4148

LM336

1N4148

PACKAGE DESCRIPTIO

H Package

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

(Reference LTC DWG # 05-08-1340)

0.209 – 0.219

(5.309 – 5.537)

0.178 – 0.195

(4.521 – 4.953)

0.500

(12.700)

REFERENCE

PLANE

0.036 – 0.046

(0.914 – 1.168)

*

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

**

FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS

MIN

0.016 – 0.021**
(0.406 – 0.533)

DIA

0.100

0.050

(2.540)

(1.270)

TYP

TYP

PIN 1

45°

0.085 – 0.105

(2.159 – 2.667)

*

0.025

(0.635)

MAX

0.050

(1.270)

TYP

FOR 3-LEAD PACKAGE ONLY

0.028 – 0.048

(0.711 – 1.219)

H02/03(TO-46) 1098

0.016 – 0.024

(0.406 – 0.610)

R2*
10k

R1
375Ω

2k

136/336 TA03

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Switchable ±1.25V

Low Noise 2.5V Buffered Reference

Bipolar Reference

5V

V

OUT

5V

–5V

5k

5k

2N3904

*

2N3906

*LM336-2.5

–5V

5k

10k
1%

OUT

9.76k
1%

500Ω

136/336 TA04

Z Package

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

(Reference LTC DWG # 05-08-1410)

10° NOM

0.180 ± 0.005

(4.572 ± 0.127)

(2.286)

0.050

UNCONTROLLED
LEAD DIMENSION

(1.270)

MAX

0.016 ± 0.003

(0.406 ± 0.076)

0.060 ± 0.010

(1.524 ± 0.254)

0.90

NOM

0.140 ± 0.010

(3.556 ± 0.127)

5°

NOM

0.015 ± 0.002

(0.381 ± 0.051)

0.098 +016/–0.04
(2.5 +0.4/–0.1)

2 PLCS

TO-92 TAPE AND REEL

REFER TO TAPE AND REEL SECTION OF

LTC DATA BOOK FOR ADDITIONAL INFORMATION

Z3 (TO-92) 0401

0.060 ± 0.005

(1.524± 0.127)

DIA

0.180 ± 0.005

(4.572 ± 0.127)

0.500

(12.70)

MIN

0.050
(1.27)

BSC

OBSOLETE PACKAGE

●

www.linear.com

RELATED PARTS

PART NUMBER DESCRIPTION COMMENTS

LT1009 Precision 2.5V Shunt Reference 0.2% Max Initial Tolerance

4

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

[phone] ● FAX: [phone]

136336fa LT/CP 0801 1.5K REV A • PRINTED IN USA

 LINEAR TECHNOLOG Y CORPORATION 1986