Datasheet LT1004CS8-1.2#PBF, LT1004CZ-1.2#PBF Specification

FEATURES

■

Guaranteed ±4mV Initial Accuracy LT1004-1.2

■

Guaranteed ±20mV Accuracy LT1004-2.5

■

Guaranteed 10µA Operating Current

■

Guaranteed Temperature Performance

■

Operates up to 20mA

■

Very Low Dynamic Impedance

U

APPLICATIO S

■

Portable Meter References

■

Portable Test Instruments

■

Battery-Operated Systems

■

Current Loop Instrumentation

LT1004

Micropower Voltage

Reference

U

DESCRIPTIO

The LT®1004 micropower voltage reference is a 2-terminal bandgap reference diode designed to provide high accuracy and excellent temperature characteristics at very low operating currents. Optimization of the key parameters in the design, processing and testing of the device results in accuracy specifications previously attainable only with selected units. Below is a distribution plot of reference voltage for a typical lot of LT1004-1.2. Virtually all of the units fall well within the prescribed limits of ±4mV.

The LT1004 is a pin-for-pin replacement for the LM185/LM385 series of references with improved accuracy specifications. More important, the LT1004 is an attractive device for use in systems where accuracy was previously obtained at the expense of power consumption

and trimming.

U

TYPICAL APPLICATIO

Micropower Cold Junction Compensation for Thermocouples

*

100k

3V LITHIUM

LT1004-1.2

THERMOCOUPLE

TYPE R1

J 233k K 299k T 300k S 2.1M

R1

1684Ω

186Ω

+ –

*QUIESCENT CURRENT ≅ 15µA

†

YELLOW SPRINGS INST. CO. PART #44007

COMPENSATES WITHIN ±1°C FROM 0°C TO 60°C

5k AT 25°C

1.8k

†

+

–

1004 TA01

For a low drift micropower reference with guaranteed temperature coefficient, see the LT1034 data sheet.

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

Typical Distribution of

Reference Voltage (LT1004-1.2)

200 180 160 140 120 100

80

NUMBER OF PARTS

60 40 20

1.2325

1.233

1.2335

1.234

1.2345

1.235

1200 PARTS T

1.2355

1.236

= 25°C

A

1.2365

1004 TA02

1.237

1.2375

1

LT1004

WWWU

ABSOLUTE AXI U RATI GS

(Note 1)

Reverse Breakdown Current ................................. 30mA

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

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

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

UU

W

Operating Temperature Range

LT1004M (OBSOLETE) .................... – 55°C to 125°C

LT1004I ............................................. – 40°C to 85°C

LT1004C................................................. 0°C to 70°C

PACKAGE/ORDER I FOR ATIO

BOTTOM VIEW

12

GND

H PACKAGE

2-LEAD TO-46 METAL CAN

T

= 150°C, θJA = 440°C/W, θJC = 80°C/W

JMAX

ORDER PART

NUMBER

LT1004MH-1.2 LT1004MH-2.5

LT1004CH-1.2 LT1004CH-2.5

OBSOLETE PACKAGE

Consider the SO-8 or Z Packages for Alternate Source

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

ORDER PART

NUMBER

LT1004CS8-1.2 LT1004CS8-2.5 LT1004IS8-1.2 LT1004IS8-2.5

TOP VIEW

NC

1

NC

2

NC

3

4

S8 PACKAGE

8-LEAD PLASTIC SO

T

= 100°C, θJA = 150°C/W

JMAX

MARKING

V

8

OUT

NC

7

V

6

OUT

NC

5

(DO NOT USE)

S8 PART

0412 0425 0412I 0425I

BOTTOM VIEW

Z PACKAGE

3-LEAD PLASTIC TO-92

T

= 100°C, θJA = 160°C/W

JMAX

ORDER PART

NUMBER

LT1004CZ-1.2 LT1004CZ-2.5 LT1004IZ-1.2 LT1004IZ-2.5

ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating

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

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

V

Z

∆Temp I

MIN

∆V

∆I

r

Z

e

n

∆V

∆Time

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

Note 2: All specifications are for T

Reverse Breakdown Voltage IR = 100µA 1.231 1.235 1.239 2.480 2.500 2.520 V

∆V

Average Temperature Coefficient I

Z

Minimum Operating Current ● 810 1220 µA Reverse Breakdown Voltage I

Z

Change with Current ● 1.5 1.5 mV

R

Reverse Dynamic Impedance IR = 100µA 0.2 0.6 0.2 0.6 Ω

Wide Band Noise (RMS) IR = 100µA, 10Hz ≤ f ≤ 10kHz 60 120 µV Long Term Stability IR = 100µA, TA = 25°C ± 0.1°C 20 20 ppm/kHr

Z

= 25°C unless otherwise noted.

A

LT1004M: –55°C ≤ T LT1004C: 0°C ≤ T LT1004I: –40°C ≤ TA ≤ 85°C ● 1.220 1.230 1.245 2.460 2.500 2.530 V

≤ IR ≤ 20mA (Note 3) 20 20 ppm/°C

MIN

≤ IR ≤ 1mA 1.0 1.0 mV

MIN

1mA ≤ IR ≤ 20mA 10 10 mV

≤ 125°C ● 1.220 1.230 1.245 2.460 2.500 2.535 V

A

≤ 70°C ● 1.225 1.235 1.245 2.470 2.500 2.530 V

A

● 20 20 mV

● 1.5 1.5 Ω

Note 3: Selected devices with guaranteed maximum temperature coefficient are available upon request.

For MIL-STD components, please refer to LTC 883C data sheet for test listing and parameters.

LT1004-1.2 LT1004-2.5

2

FORWARD CURRENT (mA)

FORWARD VOLTAGE (V)

1.2

0.8

0.4

0

0.01 1 10 100

1004 G11

0.1

TA = 25°C

TIME (µs)

0

VOLTAGE (V)

500100 600

1004 G09

1.5

1.0

0.5

0

5V

0

36k

V

IN

V

OUT

OUTPUT

INPUT

UW

TYPICAL PERFOR A CE CHARACTERISTICS

LT1004

(1.2V)

Reverse Characteristics

100

–55°C TO 125°C

10

1

REVERSE CURRENT (µA)

0.1 0

0.4

0.2 REVERSE VOLTAGE (V)

Temperature Drift

1.245

1.240

1.235

1.230

REVERSE VOLTAGE (V)

1.225

–35 125

–55

525 65

–15

TEMPERATURE (°C)

0.6

45

0.8

1.0

1.2

85 105

1004 G04

1004 G01

1.4

Reverse Voltage Change

16

–55°C TO 125°C

12

8

4

0

OUTPUT VOLTAGE CHANGE (mV)

–4

0.01 1 10 100

0.1 REVERSE CURRENT (mA)

Reverse Dynamic Impedance

100

10

1

DYNAMIC IMPEDANCE (Ω)

0.1

0.01 1 10 100

0.1

REVERSE CURRENT (mA)

–55°C TO 125°C f = 25Hz

1004 G02

1004 G05

Forward Characteristics

Reverse Dynamic Impedance

10k

TA = 25°C

= 100µA

I

R

1k

100

10

DYNAMIC IMPEDANCE (Ω)

1

0.1 100

10

1k

FREQUENCY (Hz)

10k

100k

1M

1004 G06

Noise Voltage

700

600

500

400

300

NOISE (nV/√Hz)

200

100

0

10 1k 10k 100k

100

FREQUENCY (Hz)

IR = 100µA

= 25°C

T

A

1004 G07

Filtered Output Noise

70

IR = 100µA

60

100µA

50

40

30

NOISE (nV/√Hz)

20

10

R

0

100

Reponse Time

RC LOW PASS

C

1k 10k 100k

FREQUENCY (Hz)

1004 G08

3

LT1004

TIME (µs)

VOLTAGE (V)

500100

1004 G17

3

2

1

0

5V

0

24k

V

IN

V

OUT

OUTPUT

INPUT

UW

TYPICAL PERFOR A CE CHARACTERISTICS

(2.5V)

2.515

2.510

2.505

2.500

2.495

2.490

REFERENCE VOLTAGE (V)

2.485

2.480

–35 125

–55

525 65

–15

TEMPERATURE (°C)

Reverse Characteristics

100

–55°C TO 125°C

10

1

REVERSE CURRENT (µA)

0.1 0

45

1.0 1.5 2.0

0.5 REVERSE VOLTAGE (V)

85 105

1004 G12

Forward Characteristics

1.2 TA = 25°C

0.8

0.4

FORWARD VOLTAGE (V)

0

2.5 3.0

1004 G10

0.01 1 10 100

Reverse Dynamic Impedance

1000

–55°C TO 125°C

100

10

1

DYNAMIC IMPEDANCE (Ω)

0.1

0.01 1 10 100

0.1 REVERSE CURRENT (mA)

0.1 FORWARD CURRENT (mA)

f = 25Hz

1004 G13

1004 G11

Reverse Dynamic ImpedanceTemperature Drift

10k

TA = 25°C

= 100µA

I

R

1k

100

10

DYNAMIC IMPEDANCE (Ω)

1

0.1 100

10

FREQUENCY (Hz)

10k

100k

1k

1M

1004 G14

Noise Voltage

1400

IR = 100µA

1200

1000

800

600

NOISE (nV/√Hz)

400

200

0

10 1k 10k 100k

4

100

FREQUENCY (Hz)

1004 G15

Filtered Output Noise

120

IR = 100µA

100

INTEGRATED NOISE (µV)

100µA

80

60

40

20

R

0

100

CUTOFF FREQUENCY (Hz)

Reponse Time

RC LOW PASS

C

1k 10k 100k

1004 G16

U

1M 1%

3.01M 1%

–

+

LM4250

2

3

4

8

6

7

22M

V

IN

9V to 15V

V

OUT

5V

1004 TA13

LT1004-1.2

5.6k

R

LM334

150pF

TYPICAL APPLICATIONS

LT1004

VIN ≥ 8V

High Stability 5V Regulator

LT338A

OUTIN

+

1µF

ADJ

LT1004-2.5

Constant Gain Amplifier

Over Temperature

250k

INPUT

250k

OUTPUT

300Ω 1%

100Ω 1%

1004 TA03

V

+

≥ 5V

Variable Output Supply

LT338A

V

5V

IN

V

IN

+

1µF

–

– 1V

V

R1 ≤

0.015

–

V

ADJ

LT1004-1.2

R1

V

OUT

120Ω

2k

+

10µF

V

OUT

1004 TA08

Micropower 5V Reference

200k

Lead Acid Low-Battery Detector

†

R1 1%

133k 1%

†

R1 SETS TRIP POINT, 60.4k

PER CELL FOR 1.8V/CELL

1M

LT1004-1.2

3

2

+

–

LM4250

2N3904

60k

7

4

V– ≤ –5V

6

8

10M

1004 TA07

BATTERY OUTPUT

12V

LO = BATTERY LOW

1004 TA14

Ground Referenced Current Source

15V

2k*

LT1004-1.2

R

2

3

OUT

7

–

LT1007C

+

4

–5VI

6

1.235

I

=

OUT

R

2V

R ≈

+ 10µA

I

OUT

*MAY BE INCREASED FOR SMALL OUTPUT CURRENTS

1004 TA04

5

LT1004

Q1

Q5

20pF

7.5k

500Ω

500k

60k

300k

500k

50k

200k

600k

Q3

Q11

Q10

Q9

Q14

–

+

Q8

Q6

Q4

Q12

Q13

1004-2.5 SD

500k

U

TYPICAL APPLICATIONS

VPP Generator for Eproms –– No Trim Required

24V

22k

12k

LT1004-1.2

10k

TTL INPUT

–5V

2N3904

56k

Micropower Reference

from 9V Battery

9V

510k

1.235V

LT1004-1.2

100pF

24V

1

3

0.05µF

*1% METAL FILM RESISTORS

2

+

LM301A

–

8

4

–5V

1.2V Reference from 1.5V Battery

1.5V*

600µs RC

PER INTEL

16.9k*

1.05k*

OUT

SPEC

21V

1004 TA15

*OUTPUT REGULATES DOWN TO 1.285V FOR I

7

6

OUT

3k

LT1004-1.2

= 0

2.5V Reference Low Noise Reference

V

100µA

≥ 5V

IN

22Ω

5V

50k

LT1004-2.5

2.500V

LT1004-1.2

1.235V

1004 TA12

OUTPUT

+

50µF

1004 TA11

1004 TA10

1004 TA09

WSW

SCHE ATIC DIAGRA

LT1004-1.2

+

7.5k

Q4

Q3

20pF

Q1

Q5

500Ω500k

20pF

600k

Q6

60k

Q8

Q12

Q11

Q13

Q10

Q9

200k

50k

300k

Q14

–

1004-1.2 SD

LT1004-2.5

6

PACKAGE DESCRIPTIO

0.209 – 0.219

(5.309 – 5.537)

0.178 – 0.195

(4.521 – 4.953)

0.500

(12.700)

REFERENCE

PLANE

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°

0.016 – 0.050

(0.406 – 1.270)

MIN

0.016 – 0.021** (0.406 – 0.533)

DIA

0°– 8° TYP

U

H Package

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

(Reference LTC DWG # 05-08-1340)

0.085 – 0.105

(2.159 – 2.667)

*

0.025

(0.635)

0.036 – 0.046

MAX

(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

S8 Package

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

(Reference LTC DWG # 05-08-1610)

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

TYP

0.050

(1.270)

TYP

0.100

(2.540)

PIN 1

45°

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

TYP

0.016 – 0.024

(0.406 – 0.610)

(0.711 – 1.219)

0.228 – 0.244

(5.791 – 6.197)

0.050

(1.270)

0.028 – 0.048

H02/03(TO-46) 1098

TYP

FOR 3-LEAD PACKAGE ONLY

OBSOLETE PACKAGE

0.189 – 0.197* (4.801 – 5.004)

7

8

1

6

3

2

5

0.150 – 0.157** (3.810 – 3.988)

4

LT1004

SO8 1298

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

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

5°

NOM

0.015 ± 0.002

(0.381 ± 0.051)

0.098 +016/–0.04

10° NOM

0.050

UNCONTROLLED LEAD DIMENSION

(1.270)

MAX

0.016 ± 0.003

(0.406 ± 0.076)

0.060 ± 0.010

(1.524 ± 0.254)

0.140 ± 0.010

(3.556 ± 0.127)

(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

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.

7

LT1004

TYPICAL APPLICATIO S

U

0°C to 100°C Linear Output Thermometer

NETWORK DETAIL

YSI 44201

15V

2.7k 5%

LT1004-1.2

10k

0.1%

4

3

R

NETWORK

T

YSI 44201

–

LT1002

1/2

2765Ω

0.1%

13

+

10k

0.1%

Low Temperature Coefficient

2-Terminal Current Source

LM334

10

11

168.3Ω

0.1%

+

LT1002

–

1/2

GRN

0.1%

10k

BRN

6250Ω

RED

3.2k

V

6

OUT

0V TO10V 0°C TO 100°C

1004 TA05

R

6.8k

R ≤ 5k

LT1004-1.2

1.3V

≈

I

OUT

R

1004 TA06

RELATED PARTS

PART NUMBER DESCRIPTION COMMENTS

LT1634 Micropower Precision Shunt Reference 10µA Operating Current, 10ppm/°C Maximum Drift, 0.05% Initial Accuracy LT1460S3-2.5 Micropower Series Reference in SOT-23 100µA Operating Current, 20ppm/°C Maximum Drift, 0.2% Initial Accuracy LT1790 Precision Micropower LDO Reference in SOT-23 10ppm/°C Max Drift, 0.05% Initial Accuracy

1004fb LT/TP 0601 REV B 1.5K • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 1985

8

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507

●

www.linear.com