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MAX6006–MAX6009

1µA SOT23 Precision Shunt

Voltage Reference

General Description

The MAX6006–MAX6009 ultra-low-power shunt refer-

ences are ideal for space-critical and low-power appli-

cations. They are offered in 3-pin SOT23 packages, and

the minimum operating current is guaranteed to be

< 1µA. The devices feature low temperature coefficients

of <30ppm/°C and initial accuracy of better than 0.2%.

Available in +1.25V, +2.048V, +2.5V, and 3V output volt-

ages, the MAX6006–MAX6009 have references of

+1.25V, +2.048V, +2.5V, and +3.0V, respectively. The

devices can be used as lower-power, higher-precision

upgrades to the ICL8069, LM385, LT1004, and LM4040

references. The MAX6006–MAX6009 are available in

two grades: A and B. The A grade features a tempera-

ture coefficient of 30ppm/°C over the extended temper-

ature range of -40°C to +85°C, with an initial accuracy of

0.2%. Grade B features a temperature coefficient of

75ppm/°C with an initial accuracy of 0.5%. MAX6006 in

+1.25V and MAX6008 in +2.5V are offered in 8-pin SO

packages, as plug in upgrades for LT1004 and LM285.

o

Small 3-Pin SOT23 Package

o

Initial Voltage Accuracy: 0.2%

o

Temperature Coefficient: 30ppm/°C max

o

Temperature Range: -40°C to +85°C

o

Factory-Trimmed Output Voltages: +1.25V,

+2.048V, +2.5V, +3.0V

o

Wide Operating Range: 1µA to 2mA

Features

o

Ultra-Low Operating Current: Guaranteed < 1µA

Applications

Battery-Powered Equipment

Portable Meters

Precision Regulators

A/D and D/A Converters

Ordering Information

PART

MAX6006AEUR+T

MAX6006AESA+

MAX6006BEUR+T

MAX6006BESA+

MAX6007AEUR+T

OUTPUT

VOLTAGE (V)

1.25

2.048

INITIAL

ACCURACY (%)

0.2

0.5

0.2

TEMP COEFFICIENT

(ppm/°C)

30

75

30

PIN-PACKAGE

3 SOT23

8 SO

3 SOT23

8 SO

3 SOT23

8 SO

TOP MARK

+FZGH

—

+FZGI

—

+FZGK

—

MAX6007AESA+

2.048

0.2

+Denotes

a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

Ordering Information continued at end of data sheet.

Typical Operating Circuit

V

S

Pin Configurations

TOP VIEW

I

RMIN

+ I

L

R

BIAS

I

L

V

R

I

RMIN

V

OUT

OUT 1

3

GND 2

I.C.

MAX6006

MAX6007

MAX6008

MAX6009

+

N.C.

1

2

3

8

7

6

5

OUT

N.C.

OUT

N.C.

+

MAX6006

MAX6007

MAX6008

MAX6009

V -V

R

BIAS

=

S R

I

L

+ I

RMIN

0.01µF

GND 4

SOT23

SO

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-1730; Rev 1; 7/12

MAX6006–MAX6009

1µA SOT23 Precision Shunt

Voltage Reference

ABSOLUTE MAXIMUM RATINGS

Operating Current (OUT to GND) ......................................20mA

Forward Current (GND to OUT) ..........................................20mA

Continuous Power Dissipation (T

A

= +70°C)

3-Pin SOT23 (derate 4mW/°C above +70°C) ..............320mW

8-Pin SO (derate 5.48mW/°C above +70°C)...............471mW

Operating Temperature Range ...........................-40°C to +85°C

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

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS—MAX6006

(T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 1)

PARAMETER

Reverse Breakdown Voltage

Minimum Operating Current

Reverse Breakdown Change

with Current

Reverse Dynamic Impedance

Low-Frequency Noise

Temperature Coefficient

(Note 3)

Long-Term Drift

Thermal Hysteresis (Note 4)

TC

SYMBOL

V

R

I

RMIN

T

A

= +25°C,

I

R

= 1.2µA

I

R

= 1.2µA to 200µA

I

R

= 200µA to 2mA

I

R

= 1.2µA to 2mA (Note 2)

I

R

= 1.2µA, f = 0.1Hz to 10Hz

I

R

= 1.2µA

1000h at T

A

= +25°C

MAX6006A

MAX6006B

150

200

30

75

CONDITIONS

MAX6006A (0.2%)

MAX6006B (0.5%)

MIN

1.2475

1.2438

TYP

1.2500

0.5

MAX

1.2525

1.2563

1.0

2.0

1.5

UNITS

V

µA

mV

Ω

µV

P-P

ppm/°C

ppm

V

R

change < 0.2% from V

R

at I

R

= 1.2µA

2

Maxim Integrated

MAX6006–MAX6009

1µA SOT23 Precision Shunt

Voltage Reference

ELECTRICAL CHARACTERISTICS—MAX6007

(T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 1)

PARAMETER

Reverse Breakdown Voltage

Minimum Operating Current

Reverse Breakdown Change

with Current

Reverse Dynamic Impedance

Low-Frequency Noise

Temperature Coefficient

(Note 3)

Long-Term Drift

Thermal Hysteresis (Note 4)

TC

SYMBOL

V

R

I

RMIN

T

A

= +25°C,

I

R

= 1.2µA

I

R

= 1.2µA to 200µA

I

R

= 200µA to 2mA

I

R

= 1.2µA to 2mA (Note 2)

I

R

= 1.2µA, f = 0.1Hz to 10Hz

I

R

= 1.2µA

1000h at T

A

= +25°C

MAX6007A

MAX6007B

150

200

50

30

75

CONDITIONS

MAX6007A (0.2%)

MAX6007B (0.5%)

MIN

2.0439

2.0378

TYP

2.048

0.5

MAX

2.0521

2.0582

1.0

1.3

2.3

1.8

UNITS

V

µA

mV

Ω

µV

P-P

ppm/°C

ppm

V

R

change < 0.2% from V

R

at I

R

= 1.2µA

ELECTRICAL CHARACTERISTICS—MAX6008

(T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 1)

PARAMETER

Reverse Breakdown Voltage

Minimum Operating Current

Reverse Breakdown Change with

Current

Reverse Dynamic Impedance

Low-Frequency Noise

Temperature Coefficient

(Note 3)

Long-Term Drift

Thermal Hysteresis (Note 4)

TC

SYMBOL

V

R

I

RMIN

CONDITIONS

MAX6008A (0.2%)

T

A

= +25°C,

I

R

= 1.2µA

MAX6008B (0.5%)

V

R

change < 0.2% from V

R

at I

R

= 1.2µA

I

R

= 1.2µA to 200µA

I

R

= 200µA to 2mA

I

R

= 1.2µA to 2mA (Note 2)

I

R

= 1.2µA, f = 0.1Hz to 10Hz

I

R

= 1.2µA

1000h at T

A

= +25°C

MAX6008A

MAX6008B

150

200

60

30

75

MIN

2.4950

2.4875

TYP

2.5000

0.5

MAX

2.5050

2.5125

1.0

1.5

2.5

2

UNITS

V

µA

mV

Ω

µV

P-P

ppm/°C

ppm

Maxim Integrated

3

MAX6006–MAX6009

1µA SOT23 Precision Shunt

Voltage Reference

ELECTRICAL CHARACTERISTICS—MAX6009

(T

A

= -40°C to +85°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 1)

PARAMETER

Reverse Breakdown Voltage

Minimum Operating Current

Reverse Breakdown Change

with Current

Reverse Dynamic Impedance

Low-Frequency Noise

Temperature Coefficient

(Note 3)

Long-Term Drift

Thermal Hysteresis (Note 4)

TC

SYMBOL

V

R

I

RMIN

T

A

= +25°C,

I

R

= 1.2µA

CONDITIONS

MAX6009A (0.2%)

MAX6009B (0.5%)

MIN

2.9940

2.9850

TYP

3.000

0.5

MAX

3.0060

3.0150

1.0

1.7

2.7

2.2

75

30

75

150

200

UNITS

V

µA

mV

Ω

µV

P-P

ppm/°C

ppm

V

R

change < 0.2% from V

R

at I

R

= 1.2µA

I

R

= 1.2µA to 200µA

I

R

= 200µA to 2mA

I

R

= 1.2µA to 2mA (Note 2)

I

R

= 1.2µA, f = 0.1Hz to 10Hz

I

R

= 1.2µA

1000h at T

A

= +25°C

MAX6009A

MAX6009B

Note 1:

Note 2:

Note 3:

Note 4:

All devices are 100% production tested at T

A

= +25°C and are guaranteed by design for T

A

= T

MIN

to T

MAX

, as specified.

This parameter is guaranteed by the “reverse breakdown change with current” test.

TC is measured by the “box” method; i.e., (V

MAX

- V

MIN

)/(T

MAX

- T

MIN

).

Thermal hysteresis is defined as the change in the +25°C output voltage after cycling the device from T

MIN

to T

MAX

.

Typical Operating Characteristics

(C

L

= 0.01µF, T

A

= +25°C, unless otherwise noted.)

MAX6006

V

OUT

vs. CURRENT

MAX6006/9-01

MAX6006/9-02

TEMPERATURE DRIFT

0.5

REFERENCE VOLTAGE CHANGE (mV)

0

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-50

0

50

100

TEMPERATURE (°C)

0

0.001

I

R

= 1.2µA

V

OUT

= 2.5V

2.5

REVERSE VOLTAGE CHANGE (mV)

MAX6006

STARTUP

1.5V

MAX6006/9-03

2.0

1.5

0

1.0

T

A

= +85°C T

A

= -40°C

T

A

= +25°C

0.01

0.1

1

10

20ms/div

1.2µA

0.5

REVERSE CURRENT (mA)

4

Maxim Integrated

MAX6006–MAX6009

1µA SOT23 Precision Shunt

Voltage Reference

Typical Operating Characteristics (continued)

(C

L

= 0.01µF, T

A

= +25°C, unless otherwise noted.)

MAX6006

0.01Hz TO 10Hz NOISE

MAX6006/9-04

MAX6006

OUTPUT IMPEDANCE vs. FREQUENCY

I

R

= 6µA,

∆

I

R

= 1.2µA

MAX6006/9-05

MAX6009

V

OUT

vs. CURRENT

MAX6006/9-06

1000

2.5

REVERSE VOLTAGE CHANGE (mV)

NOISE VOLTAGE (20µ/div)

2.0

IMPEDANCE (Ω)

100

1.5

1.2µA

1.0

T

A

= -40°C

T

A

= +25°C

0.5

T

A

= +85°C

0.001

0.01

0.1

1

10

1

TIME (2s/div)

0.01

0.1

1

10

100

1000

FREQUENCY (kHz)

0

REVERSE CURRENT (mA)

MAX6009

STARTUP

MAX6006/9-07

MAX6009

0.01Hz TO 10Hz NOISE

MAX6006/9-08

MAX6009

OUTPUT IMPEDANCE vs. FREQUENCY

I

R

= 6µA,

∆

I

R

= 1.2µA

MAX6006/9-09

1000

3V

NOISE VOLTAGE (20µV/div)

0V

1.2µA

IMPEDANCE (Ω)

100

10

1

20ms/div

TIME (2s/div)

0.01

0.1

1

10

100

1000

FREQUENCY (kHz)

Maxim Integrated

5

MAX6009_12

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