LX1004C-2.5DM - Microsemi Corporation

DESCRIPTION KEY FEATURES

■GUARANTEED ±4mV INITIAL ACCURACY

LX1004-1.2

■GUARANTEED ±20mV INITIAL ACCURACY

LX1004-2.5

■GUARANTEED 10µA OPERATING CURRENT

■GUARANTEED TEMPERATURE

PERFORMANCE

■OPERATES UP TO 20mA

■VERY LOW DYNAMIC IMPEDANCE

The LX1004 Micropower Voltage

References are two terminal bandgap

reference diodes designed and

optimized for accurate low power

operation in portable and other

power sensitive systems. Operating

currents are guaranteed from as low

as 10µA up to 20mA giving designers

a great deal of flexibility in optimiz-

ing power consumption, noise and

ultimate application performance.

The LX1004 is available in fixed

1.2V and 2.5V reference values.

APPLICATIONS

■■

■PORTABLE METER REFERENCES

■PORTABLE TEST INSTRUMENTS

■BATTERY OPERATED SYSTEMS

■CURRENT LOOP INSTRUMENTATION

Process and circuit design optimiza-

tion provide for high accuracy with

initial tolerance values of ±4mV and

±20mV, respectively. Complementing

their initial accuracy, the bandgap

reference is temperature compensated

to deliver 20ppm performance over

the 0° to 70°C operating temperature

range.

The LX1004 from Linfinity is a pin-

for-pin replacement for the LT1004

and LM385 families of voltage

references.

PACKAGE ORDER INFORMATION

(°C)

0 to 70 1.2V ±4mV LX1004CDM-1.2 LX1004CLP-1.2

2.5V ±20mV LX1004CDM-2.5 LX1004CLP-2.5

Plastic TO-92

3-pin

Plastic SOIC

8-pin

Reference

Voltage Initial

Tolerance

PRODUCT HIGHLIGHT

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

PRODUCTION DATA SHEET

THE INFINITE POWER OF INNOVATION

Rev. 1.2 6/96

FOR FURTHER INFORMATION CALL (714) 898-8121

11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841

LX1004

LIN DOC #:

1004

MICROPOWER REFERENCE FROM

9V BATTERY

MICROPOWER REFERENCE

FROM 2 CELL BATTERY

1.235V

LX1004-1.2

39k

2.5V

LX1004-2.5

200k

Note: All surface-mount packages are available in Tape & Reel.

Append the letter "T" to part number. (i.e. LX1004CDM-2.5T)

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

ABSOLUTE MAXIMUM RATINGS (Note 1) PACKAGE PIN OUTS

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

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

Operating Temperature Range ....................................................................... 0°C to 70°C

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

Lead Temperature (soldering, 10 seconds) ............................................................. 300°C

Note 1. Values beyond which damage may occur. All voltages are specified with respect to

ground, and all currents are positive into the specified terminal

THERMAL DATA

DM PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθ

θθ

θJA 165ºC/W

LP PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθ

θθ

θJA 165ºC/W

The θJA numbers are guidelines for the thermal performance of the device/pc-board system.

All of the above assume no ambient airflow.

1. ANODE

2. CATHODE

3. N/C

LP PACKAGE

(Top View)

3 .

N/C

ANODE

CATHODE

N/C

CATHODE

N/C

DM PACKAGE

(Top View)

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply to TA = 25ºC for LX1004C. Typ. number represents TA = 25ºC value.

Parameter

Symbol

Test Conditions Units

LX1004 - 1.2

Min. Typ. Max.

1.231 1.235 1.239 V

1.225 1.235 1.245 V

20 ppm/°C

810µA

1mV

1.5 mV

10 mV

20 mV

0.2 0.6 Ω

1.5 Ω

60 µV

20 ppm/kHr

Reverse Breakdown Voltage VZIR = 100µA, TA = 25°C

0°≤ TA ≤ 70°C

Average Temperature Coefficient ∆VZIMIN

≤ IR ≤ 20mA

∆Temp

Minimum Operating Current IMIN 0°≤ TA ≤ 70°C

Reverse Breakdown Voltage Change IMIN

≤ IR ≤ 1mA, TA = 25°C

with Current ∆VZIMIN

≤ IR ≤ 1mA, 0° ≤ TA ≤ 70°C

∆IR1mA ≤ IR ≤ 20mA, TA = 25°C

1mA ≤ IR ≤ 20mA, 0° ≤ TA ≤ 70°C

Reverse Dynamic Impedance rzIR = 100µA, TA = 25°C

IR = 100µA, 0° ≤ TA ≤ 70°C

Wide Band Noise (RMS) enIR = 100µA; 10Hz ≤ f ≤ 10kHz

Long Term Stability ∆VZIR = 100µA; TA = 25°C ± 0.1°C

∆Time

GRAPH / CURVE INDEX

Characteristic Curves — LX1004-1.2V

FIGURE #

1. TEMPERATURE DRIFT

2. REVERSE CHARACTERISTICS

3. REVERSE VOLTAGE CHANGE

4. FORWARD CHARACTERISTICS

5. REVERSE DYNAMIC IMPEDANCE

6. NOISE VOLTAGE

7. RESPONSE TIME

Parameter

Symbol

Test Conditions Units

LX1004 - 2.5

Min. Typ. Max.

2.480 2.500 2.520 V

2.470 2.530 V

20 ppm/°C

12 20 µA

1mV

1.5 mV

10 mV

20 mV

0.2 0.6 Ω

1.5 Ω

120 µV

20 ppm/kHr

Reverse Breakdown Voltage VZIR = 100µA, TA = 25°C

0°≤ TA ≤ 70°C

Average Temperature Coefficient ∆VZIMIN

≤ IR ≤ 20mA

∆Temp

Minimum Operating Current IMIN 0°≤ TA ≤ 70°C

Reverse Breakdown Voltage Change IMIN

≤ IR ≤ 1mA, TA = 25°C

with Current ∆VZIMIN

≤ IR ≤ 1mA, 0° ≤ TA ≤ 70°C

∆IR1mA ≤ IR ≤ 20mA, TA = 25°C

1mA ≤ IR ≤ 20mA, 0° ≤ TA ≤ 70°C

Reverse Dynamic Impedance rzIR = 100µA, TA = 25°C

IR = 100µA, 0° ≤ TA ≤ 70°C

Wide Band Noise (RMS) enIR = 100µA; 10Hz ≤ f ≤ 10kHz

Long Term Stability ∆VZIR = 100µA; TA = 25°C ± 0.1°C

∆Time

LX1004 - 1.2

LX1004 - 2.5

Characteristic Curves — LX1004-2.5V

FIGURE #

1. RESPONSE TIME

2. REVERSE CHARACTERISTICS

3. FORWARD CHARACTERISTICS

4. TEMPERATURE DRIFT

5. NOISE VOLTAGE

6. REVERSE DYNAMIC IMPEDANCE

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

CHARACTERISTIC CURVES — LX1004-1.2V

FIGURE 2. — REVERSE CHARACTERISTICS

FIGURE 3. — REVERSE VOLTAGE CHANGE FIGURE 4. — FORWARD CHARACTERISTICS

FIGURE 1. — TEMPERATURE DRIFT

Temperature - (°C)

Reference Voltage - (V)

1.226

02030406070

1.23

1.236

1.242

1.232

1.24

10 50

1.228

1.234

1.238

= 100µA

Reverse Voltage - (V)

Reverse Current - (µA)

0.1

0 0.2 0.4 0.6 0.8 1.0

100

= 0 to 70°C

1.2 1.4

Reverse Current - (mA)

Output Voltage Change - (mV)

-4

0.01 0.1 1 10 100

-2

= 0 to 70°C

Forward Current - (mA)

Forward Voltage - (V)

0.4

0.01 0.1 110 100

0.8

1.2

= 25°C

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

CHARACTERISTIC CURVES — LX1004-1.2V

FIGURE 6. — NOISE VOLTAGE

FIGURE 7. — RESPONSE TIME

FIGURE 5. — REVERSE DYNAMIC IMPEDANCE

0.1

(f) Frequency - (Hz)

Dynamic Impedance - (Ω)

10 100 1k 10k 100k

1000

= 25°C

100

300

(f) Frequency - (Hz)

) Noise Voltage - (nV/ Hz)

400

10 100 1k 10k 100k

700

800

500

600

= 100µA

= 25°C

200

100

Time - (µs)

Output Voltage

1.0V

Input Voltage

0.5V

1.5V

OUT

36k

0 50 100 500 550

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

CHARACTERISTIC CURVES — LX1004-2.5V

FIGURE 9. — REVERSE CHARACTERISTICS

FIGURE 10. — FORWARD CHARACTERISTICS FIGURE 11. — TEMPERATURE DRIFT

FIGURE 8. — RESPONSE TIME

Time -

(

100µs/Div.

)

Output Voltage

2.0V

4.0V

Input Voltage

= 25°C

OUT

24K

Reverse Voltage - (V)

Reverse Current - (µA)

0.1

0 1.0 2.0 3.0 4.0 5.0

100

= 25°C

Forward Current - (mA)

Forward Voltage - (V)

0.001 0.01 0.1 1 10 100

0.2

0.6

1.0

= 25°C

0.4

0.8

Temperature - (°C)

Reference Voltage - (V)

2.48

-40 0 20 40 80 100

2.49

2.505

2.52

2.495

2.515

20 60

2.485

2.5

2.51

1.2V & 2.5V M

ICROPOWER

OLTAGE

EFERENCES

LX1004

PRODUCT DATABOOK 1996/1997

Rev. 1.2 6/96

PRODUCTION DATA SHEET

CHARACTERISTIC CURVES — LX1004-2.5V

FIGURE 13. — REVERSE DYNAMIC IMPEDANCE

FIGURE 12. — NOISE VOLTAGE

300

(f) Frequency - (Hz)

) Noise Voltage - (nV/ Hz)

600

10 100 1k 10k 100k

1500

1800

900

1200

= 100µA

= 25°C

(f) Frequency - (Hz)

Dynamic Impedance - (Ω)

0.1

10 100 1k 100k

100

10k

= 25°C

= 100µA