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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.

Features

o Ultra-Low Operating Current: Guaranteed < 1µA

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

Applications

Battery-Powered Equipment

Portable Meters

Precision Regulators

A/D and D/A Converters

GND

3 I.C.

OUT

MAX6006

MAX6007

MAX6008

MAX6009

SOT23

TOP VIEW

OUT

N.C.GND

OUT

N.C.N.C.

N.C.

Pin Configurations

RMIN

+ I

RMIN

BIAS

OUT

MAX6006

MAX6007

MAX6008

MAX6009

0.01µF

BIAS

- V

+ I

RMIN

Typical Operating Circuit

19-1730; Rev 1; 7/12

Ordering Information

PART

OUTPUT

VOLTAGE (V)

INITIAL

ACCURACY (%)

TEMP COEFFICIENT

(ppm/°C)

PIN-PACKAGE TOP MARK

MAX6006AEUR+T 1.25 0.2 30 3 SOT23 +FZGH

MAX6006AESA+ 1.25 0.2 30 8 SO —

MAX6006BEUR+T 1.25 0.5 75 3 SOT23 +FZGI

MAX6006BESA+ 1.25 0.5 75 8 SO —

MAX6007AEUR+T 2.048 0.2 30 3 SOT23 +FZGK

MAX6007AESA+ 2.048 0.2 30 8 SO —

Ordering Information continued at end of data sheet.

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

T = Tape and reel.

Summary of content (8 pages)

PAGE 1
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference General Description The MAX6006–MAX6009 ultra-low-power shunt references are ideal for space-critical and low-power applications. 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 voltages, the MAX6006–MAX6009 have references of +1.25V, +2.
PAGE 2
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 (TA = +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 ..................
PAGE 3
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference ELECTRICAL CHARACTERISTICS—MAX6007 (TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL Reverse Breakdown Voltage VR Minimum Operating Current IRMIN CONDITIONS TA = +25°C, IR = 1.2µA MIN TYP MAX MAX6007A (0.2%) 2.0439 2.048 2.0521 MAX6007B (0.5%) 2.0378 2.048 2.0582 0.5 1.0 VR change < 0.2% from VR at IR = 1.2µA Reverse Breakdown Change with Current IR = 1.2µA to 200µA 1.
PAGE 4
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference ELECTRICAL CHARACTERISTICS—MAX6009 (TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL Reverse Breakdown Voltage VR Minimum Operating Current IRMIN TA = +25°C, IR = 1.2µA CONDITIONS MAX6009A (0.2%) MIN 2.9940 TYP 3.000 MAX 3.0060 MAX6009B (0.5%) 2.9850 3.000 3.0150 0.5 1.0 VR change < 0.2% from VR at IR = 1.2µA Reverse Breakdown Change with Current IR = 1.2µA to 200µA 1.
PAGE 5
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference Typical Operating Characteristics (continued) (CL = 0.01µF, TA = +25°C, unless otherwise noted.) 100 10 2.5 1.2µA 1.0 TA = -40°C TA = +25°C 0.5 TA = +85°C 1 10 100 0.001 1000 0.01 0.1 1 10 FREQUENCY (kHz) REVERSE CURRENT (mA) MAX6009 0.01Hz TO 10Hz NOISE MAX6009 OUTPUT IMPEDANCE vs. FREQUENCY MAX6006/9-08 1000 IR = 6µA, ∆ IR = 1.2µA IMPEDANCE (Ω) 0V 0.1 NOISE VOLTAGE (20µV/div) MAX6006/9-07 3V 1.5 MAX6006/9-09 0.
PAGE 6
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference Pin Description PIN FUNCTION NAME SOT23 SO 1 6, 8 OUT Output Voltage. Bias OUT with a pullup resistor to a potential greater than OUT. Bypass OUT to GND with a 0.01µF or larger capacitor. 2 4 GND Ground 3 — IC — 1, 2, 3, 5, 7 N.C. Internally connected test point. Leave this pin unconnected, or connect to GND. No connection. Not internally connected.
PAGE 7
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference MAX6008 R1 200kΩ +10V MAX6008 R1 200kΩ 4 5 4 5 1 1 MAX4162EUK MAX4162EUK 3 3 2 2 IOUT IOUT R2 -1.0V TO -7V IOUT = R2 +1.0V TO +7V 2.5V R2 -10V Figure 2. Precision 1µA to 1mA Current Sources Ordering Information (continued) OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMP COEFFICIENT (ppm/°C) PIN-PACKAGE TOP MARK MAX6007BEUR+T 2.048 0.5 75 3 SOT23 +FZGL MAX6007BESA+ 2.048 0.5 75 8 SO — MAX6008AEUR+T 2.50 0.
PAGE 8
MAX6006–MAX6009 1µA SOT23 Precision Shunt Voltage Reference Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 8/00 Initial release — 1 7/12 Added /V to MAX6008 and updated Ordering Information. 7 Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied.