MAXIM MAX6043 Technical data

General Description

The MAX6043 precision voltage reference provides
accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and
+10V reference voltages from up to +40V input volt­ages. The MAX6043 features a proprietary temperature
coefficient curvature-correction circuit and laser­trimmed thin-film resistors that result in a very low tem­perature coefficient of 15ppm/°C (max) and excellent
initial accuracy of 0.05% (max). Low temperature drift
and low noise make the MAX6043 ideal for use with
high-resolution A/D or D/A converters.

The MAX6043 draws 320µA of supply current and
sources 10mA or sinks 0.6mA of load current. The
MAX6043 uses bandgap technology for low-noise per­formance and excellent accuracy. The MAX6043 does
not require an output bypass capacitor for stability, and
is stable with capacitive loads up to 100µF. Eliminating
the output bypass capacitor saves valuable board area
in space-critical applications. The supply-independent,
low supply current makes the MAX6043 ideal for bat­tery-operated, high-performance systems.

The MAX6043 is available in a 6-pin SOT23 package
and operates over the automotive (-40°C to +125°C)
temperature range.

Applications

Analog-to-Digital Converters

Digital-to-Analog Converters

Digital Voltmeters

Voltage Regulators

Threshold Detectors

Features

♦ +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output

Voltages

♦ Excellent Temperature Stability: 15ppm/°C (max)
♦ Tight Initial Accuracy: 0.05% (max)
♦ Tiny SOT23 Package
♦ Wide +4.5V to +40V Supply Voltage Range
♦ Low Noise: 4µV

P-P

(typ at 2.5V Output)

♦ Short-Circuit Protected
♦ Wide Operating Temperature Range

-40°C to +125°C

♦ Stable with Capacitive Loads from 0 to 100µF
♦ No External Capacitors Required for Stability

MAX6043

Precision High-Voltage Reference in SOT23

________________________________________________________________ Maxim Integrated Products 1

19-3036; Rev 1; 5/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

Ordering Information continued at end of data sheet.

Typical Operating Circuit appears at end of data sheet.

Selector Guide

Pin Configuration

TOP VIEW

16OUTS

I.C.*

GND

2

MAX6043

34

SOT23-6

*INTERNALLY CONNECTED. DO NOT CONNECT.

5 OUTF

INI.C.*

PART TEMP RANGE

MAX6043AAUT25-T -40°C to +125°C 6 SOT23-6 ABRZ

MAX6043BAUT25-T -40°C to +125°C 6 SOT23-6 ABDQ

MAX6043CAUT25-T -40°C to +125°C 6 SOT23-6 ABDR

PART

MAX6043AAUT25 2.5 15 0.06

MAX6043BAUT25 2.5 20 0.1

MAX6043CAUT25 2.5 65 0.5

MAX6043AAUT33 3.3 15 0.06

MAX6043BAUT33 3.3 20 0.1

MAX6043CAUT33 3.3 65 0.5

MAX6043AAUT41 4.096 15 0.06

MAX6043BAUT41 4.096 20 0.1

MAX6043CAUT41 4.096 65 0.5

MAX6043AAUT50 5.0 15 0.06

MAX6043BAUT50 5.0 20 0.1

MAX6043CAUT50 5.0 65 0.5

MAX6043AAUT10 10.0 15 0.05

MAX6043BAUT10 10.0 20 0.1

MAX6043CAUT10 10.0 65 0.5

OUTPUT

VOLTAGE

(V)

PIN­PACKAGE

TEMPCO

o

(ppm/

C)

o

-40

C to

o

+125

C

INITIAL

ACCURACY

TOP

MARK

(%)

MAX6043

Precision High-Voltage Reference in SOT23

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

IN to GND ...............................................................-0.3V to +42V

OUTF, OUTS to GND...................................-0.3V to (V

IN

+ 0.3V)

Continuous Power Dissipation (T

A

= +70°C)

6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW

OUT_ Short-Circuit Duration .....................................................5s

Operating Temperature Range .........................-40°C to +125°C

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

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

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

ELECTRICAL CHARACTERISTICS—V

OUT

= +2.5V

(VIN= +5V, I

OUT

= 0, TA= T

MIN

to T

MAX

. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

OUTPUT

Output Voltage I

Output-Voltage Temperature
Coefficient (Note 2)

Line Regulation (Note 4) 4.5V < VIN < 40V

Load Regulation (Note 4)

OUT Short-Circuit Current

Thermal Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 150 ppm

DYNAMIC CHARACTERISTICS

Output Noise Voltage

Turn-On Settling Time To V

INPUT

Supply Voltage Range Inferred from line regulation test 4.5 40.0 V

Quiescent Supply Current I

PARAMETER CONDITIONS MIN TYP MAX UNITS

= 0, TA = +25°C

OUT

= -40°C to +125°C

T

A

Sourcing,
0 < I

Sinking,

-0.6mA < I

Output shorted to GND 60

Output shorted to IN -2

0.1Hz to 10Hz 4 µV

10Hz to 1kHz 7 µV

< 10mA

OUT

< 0mA

OUT

= 0.05% of final value, C

OUT

= 0

OUT

MAX6043A (0.06%) 2.4985 2.5000 2.5015

MAX6043B (0.1%) 2.4975 2.5000 2.5025

MAX6043C (0.5%) 2.4876 2.5000 2.5125

MAX6043A_25 3 15

MAX6043B_25 5 25

MAX6043C_25 10 65

TA = +25°C16

T

= -40°C to +125°C 1.5 10

A

TA = +25°C870

T

= -40°C to +125°C70

A

TA = +25°C 70 900

T

= -40°C to +125°C 900

A

= 50pF 150 µs

OUT

TA = +25°C 320 490

= -40°C to +125°C 370 650

T

A

ppm/°C

ppm/V

ppm/mA

mA

V

P-P

RMS

µA

MAX6043

Precision High-Voltage Reference in SOT23

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—V

OUT

= +3.3V

(VIN= +10V, I

OUT

= 0, TA= T

MIN

to T

MAX

. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

OUTPUT

Output Voltage I

Output-Voltage Temperature
Coefficient (Note 2)

Line Regulation (Note 4) 5.3V ≤ VIN ≤ 40V

Load Regulation (Note 4)

OUT Short-Circuit Current

Thermal Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 150 ppm

DYNAMIC CHARACTERISTICS

Output Noise Voltage

Turn-On Settling Time To V

INPUT

Supply Voltage Range Inferred from line regulation test 5.3 40.0 V

Quiescent Supply Current I

PARAMETER CONDITIONS MIN TYP MAX UNITS

= 0, TA = +25°C

OUT

T

= -40°C to +125°C

A

Sourcing,
0 ≤ I

Sinking,

-0.6mA ≤ I

OUT shorted to GND 60

OUT shorted to IN -2

0.1Hz to 10Hz 5.3 µV

10Hz to 1kHz 9.5 µV

≤ 10mA

OUT

≤ 0mA

OUT

= 0.05% of final value, C

OUT

= 0

OUT

MAX6043A (0.06%) 3.2980 3.3000 3.3020

MAX6043B (0.1%) 3.2967 3.3000 3.3033

MAX6043C (0.5%) 3.2836 3.3000 3.3165

MAX6043A_33 3 15

MAX6043B_33 5 25

MAX6043C_33 10 65

TA = +25°C16

= -40°C to +125°C 1.5 10

T

A

TA = +25°C2370

T

= -40°C to +125°C70

A

TA = +25°C 100 900

T

= -40°C to +125°C 900

A

= 50pF 180 µs

OUT

TA = +25°C 320 490

T

= -40°C to +125°C 380 650

A

ppm/°C

ppm/V

ppm/mA

mA

V

P-P

RMS

µA

MAX6043

Precision High-Voltage Reference in SOT23

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—V

OUT

= +4.096V

(VIN= +10V, I

OUT

= 0, TA= T

MIN

to T

MAX

. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

OUTPUT

Output-Voltage Temperature
Coefficient (Note 2)

Line Regulation (Note 4) 6.1V ≤ VIN ≤ 40V

Load Regulation (Note 4)

OUT Short-Circuit Current

Thermal Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 150 ppm

DYNAMIC CHARACTERISTICS

Output Noise Voltage

Turn-On Settling Time To V

INPUT

Supply Voltage Range Inferred from line regulation test 6.1 40.0 V

Quiescent Supply Current I

PARAMETER CONDITIONS MIN TYP MAX UNITS

= 0, TA = +25°C

OUT

T

= -40°C to +125°C

A

Sourcing,
0 ≤ I

Sinking,

-0.6mA ≤ I

OUT shorted to GND 60

OUT shorted to IN -2

0.1Hz to 10Hz 6.6 µV

10Hz to 1kHz 12 µV

≤ 10mA

OUT

≤ 0mA

OUT

= 0.05% of final value, C

OUT

= 0

OUT

MAX6043A (0.06%) 4.0935 4.0960 4.0985

MAX6043B (0.1%) 4.0919 4.0960 4.1001Output Voltage I

MAX6043C (0.5%) 4.0755 4.0960 4.1165

MAX6043A_41 3 15

MAX6043B_41 5 25

MAX6043C_41 10 65

TA = +25°C16

= -40°C to +125°C 1.5 10

T

A

TA = +25°C1970

T

= -40°C to +125°C70

A

TA = +25°C 100 900

T

= -40°C to +125°C 900

A

= 50pF 200 µs

OUT

TA = +25°C 320 490

T

= -40°C to +125°C 380 650

A

V

ppm/°C

ppm/V

ppm/mA

mA

P-P

RMS

µA

MAX6043

Precision High-Voltage Reference in SOT23

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS—V

OUT

= +5.0V

(VIN= +15V, I

OUT

= 0, TA= T

MIN

to T

MAX

. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

OUTPUT

Output-Voltage Temperature
Coefficient (Note 2)

Line Regulation (Note 4) 7V ≤ VIN ≤ 40V

Load Regulation (Note 4)

OUT Short-Circuit Current

Thermal Hysteresis (Note 3) 150 ppm
Long-Term Stability ∆t = 1000hr 150 ppm

DYNAMIC CHARACTERISTICS

Output Noise Voltage

Turn-On Settling Time To V

INPUT

Supply Voltage Range Inferred from line regulation test 7.0 40.0 V

Quiescent Supply Current I

PARAMETER CONDITIONS MIN TYP MAX UNITS

= 0, TA = +25°C

OUT

T

= -40°C to +125°C

A

Sourcing,
0 ≤ I

Sinking,

-0.6mA ≤ I

OUT shorted to GND 60

OUT shorted to IN -2

0.1Hz to 10Hz 9.5 µV

10Hz to 1kHz 15 µV

≤ 10mA

OUT

≤ 0mA

OUT

= 0.05% of final value, C

OUT

= 0

OUT

MAX6043A (0.06%) 4.9970 5.0000 5.0030

MAX6043B (0.1%) 4.9950 5.0000 5.0050Output Voltage I

MAX6043C (0.5%) 4.9751 5.0000 5.0250

MAX6043A_50 3 15

MAX6043B_50 5 25

MAX6043C_50 10 65

TA = +25°C16

= -40°C to +125°C 1.5 10

T

A

TA = +25°C3270

T

= -40°C to +125°C70

A

TA = +25°C 130 900

T

= -40°C to +125°C 900

A

= 50pF 230 µs

OUT

TA = +25°C 320 490

= -40°C to +125°C 380 650

T

A

ppm/°C

ppm/V

ppm/mA

mA

V

P-P

RMS

µA