Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - voltage reference Series Adjustable SOT 23 6

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

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

MAX6043

Precision High-Voltage Reference in SOT23

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 volt-

ages. The MAX6043 features a proprietary temperature

coefficient curvature-correction circuit and laser-

trimmed thin-film resistors that result in a very low tem-

perature 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 per-

formance 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 bat-

tery-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

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

Voltages

o Excellent Temperature Stability: 15ppm/°C (max)

o Tight Initial Accuracy: 0.05% (max)

o Tiny SOT23 Package

o Wide +4.5V to +40V Supply Voltage Range

o Low Noise: 4µV

P-P

(typ at 2.5V Output)

o Short-Circuit Protected

o Wide Operating Temperature Range

-40°C to +125°C

o Stable with Capacitive Loads from 0 to 100µF

o No External Capacitors Required for Stability

19-3036; Rev 2; 8/12

Ordering Information

Ordering Information continued at end of data sheet.

Typical Operating Circuit appears at end of data sheet.

PART

OUTPUT VOLTAGE

(V)

TEMPCO

(PPM/°C)

INITIAL ACCURACY

(%)

TOP MARK

MAX6043AAUT25-T 2.500 15 0.06 ABRZ

MAX6043AAUT25#TG16 2.500 15 0.06 #ACMH

MAX6043BAUT25-T 2.500 20 0.10 ABDQ

MAX6043BAUT25#TG16 2.500 20 0.10 #ACMI

MAX6043CAUT25-T 2.500 65 0.50 ABDR

MAX6043CAUT25#TG16 2.500 65 0.50 #ACMJ

MAX6043AAUT33-T 3.300 15 0.06 ABSA

MAX6043AAUT33#TG16 3.300 15 0.06 #ACMK

MAX6043BAUT33-T 3.300 20 0.10 ABDS

MAX6043BAUT33#TG16 3.300 20 0.10 #ACML

GND

INI.C.*

*INTERNALLY CONNECTED. DO NOT CONNECT.

6 OUTS

5 OUTF

I.C.*

MAX6043

SOT23

TOP VIEW

Pin Configuration

Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements.

T = Tape and reel.

Summary of content (15 pages)

PAGE 1
MAX6043 Precision High-Voltage Reference in SOT23 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).
PAGE 2
MAX6043 Precision High-Voltage Reference in SOT23 ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +42V OUTF, OUTS to GND ...................................-0.3V to (VIN + 0.3V) Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW OUT_ Short-Circuit Duration .....................................................5s Operating Temperature Range .........................
PAGE 3
MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +3.3V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX 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°C 1 6 TA = -40°C to +125°C 1.
PAGE 4
MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +4.096V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.0935 4.0960 4.0985 MAX6043B (0.1%) 4.0919 4.0960 4.1001 MAX6043C (0.5%) 4.
PAGE 5
MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +5.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.9970 5.0000 5.0030 MAX6043B (0.1%) 4.9950 5.0000 5.0050 MAX6043C (0.5%) 4.
PAGE 6
MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +10.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.05%) 9.9950 10.0000 10.0050 MAX6043B (0.1%) 9.9900 10.0000 10.0100 MAX6043C (0.5%) 9.
PAGE 7
MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 10V) OUTPUT VOLTAGE (V) 2.5010 2.5005 2.5000 2.4995 2.4990 2.4985 2.
PAGE 8
MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) -20 TA = +85°C TA = +125°C 1.0 0.5 20 0 40 -100 -120 1 10 100 0.1 1000 1 10 100 1000 FREQUENCY (kHz) OUTPUT IMPEDANCE vs. FREQUENCY SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 2.5V) SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 10V) 0.
PAGE 9
MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 2.5V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 10V) MAX6043 toc19 MAX6043 toc20 VOUT AC-COUPLED 1µV/div VOUT AC-COUPLED 4µV/div 1s/div 1s/div LOAD TRANSIENT (VOUT = 2.
PAGE 10
MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc25 VIN = 5V COUT = 0µF VOUT 50mV/div AC-COUPLED 2.5V IOUT 2mA/div 0 -2mA VOUT 100mV/div AC-COUPLED 10V IOUT 2mA/div 0 -2mA 200µs/div LOAD TRANSIENT (VOUT = 2.
PAGE 11
MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) TURN-ON TRANSIENT (VOUT = 10V) TURN-ON TRANSIENT (VOUT = 2.5V) MAX6043 toc33 TURN-OFF TRANSIENT (VOUT = 2.5V) MAX6043 toc34 COUT = 1µF COUT = 1µF MAX6043 toc35 COUT = 0µF 15V 5V VIN 5V/div VIN 2V/div 0V 0V 2.5V 5V VIN 2V/div 0V 2.
PAGE 12
MAX6043 Precision High-Voltage Reference in SOT23 Pin Description PIN NAME FUNCTION 1, 3 I.C. 2 GND 4 IN 5 OUTF Voltage-Reference Force Output. Connect OUTF to OUTS as close to the device as possible. OUTF and OUTS do not require a bypass capacitor for stability. 6 OUTS Voltage-Reference Sense Input Internally Connected. Do not connect externally.
PAGE 13
MAX6043 Precision High-Voltage Reference in SOT23 10,000 1000 100 TEMPERATURE COEFFICIENT (ppm/°C) 8 BIT 10 10 BIT 12 BIT 1 14 BIT 16 BIT 0.1 18 BIT 0.01 1 20 BIT 100 10 OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C) Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error Typical Operating Circuit INPUT SUPPLY IN OUTF OUTS REFERENCE OUTPUT (SEE ORDERING INFORMATION) MAX6043 0.1µF* GND *INPUT CAPACITOR IS OPTIONAL.
PAGE 14
MAX6043 Precision High-Voltage Reference in SOT23 Ordering Information (continued) OUTPUT VOLTAGE (V) TEMPCO (PPM/°C) INITIAL ACCURACY (%) TOP MARK MAX6043CAUT33#TG16 3.300 65 0.50 #ACMM MAX6043AAUT41-T 4.096 15 0.06 ABSB MAX6043AAUT41#TG16 4.096 15 0.06 #ACMN MAX6043BAUT41-T 4.096 20 0.10 ABDU MAX6043BAUT41#TG16 4.096 20 0.10 #ACMO MAX6043CAUT41-T 4.096 65 0.50 ABDV MAX6043CAUT41#TG16 4.096 65 0.50 #ACMP MAX6043AAUT50-T 5.000 15 0.06 ABSC MAX6043AAUT50#TG16 5.
PAGE 15
MAX6043 Precision High-Voltage Reference in SOT23 Revision History REVISION NUMBER REVISION DATE 0 11/03 Initial release 1 5/04 Added future product information, updated the Electrical Characteristics and Typical Operating Characteristics. 2 8/12 Updated the Ordering Information/Selector Guide, Absolute Maximum Ratings, and the Package Information sections.