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MAX6033

High-Precision, Low-Dropout SOT23 Series

Voltage Reference

General Description

The MAX6033 ultra-high-precision series voltage refer-

ence features a low 7ppm/°C (max) temperature coeffi-

cient and a low dropout voltage (200mV, max). Low

temperature drift and low noise make the MAX6033

ideal for use with high-resolution ADCs or DACs.

This device uses bandgap technology for low-noise per-

formance and excellent accuracy. Laser-trimmed, high-

stability, thin-film resistors, and postpackage trimming

guarantee excellent initial accuracy (±0.04%, max). The

MAX6033 consumes only 40µA of supply current and

sources up to 15mA. Series mode references save sys-

tem power and use minimal external components com-

pared to two-terminal shunt references.

The MAX6033 is available in the miniature 6-pin SOT23

package and is offered over the automotive tempera-

ture range (-40°C to +125°C).

Applications

Precision Regulators

A/D and D/A Converters

Power Supplies

Hard-Disk Drives

High-Accuracy Industrial and Process Control

Hand-Held Instruments

Features

o Tiny 6-Pin SOT23 Package

o Ultra-Low Temperature Drift: 7ppm/°C (max)

o ±0.04% Initial Accuracy

o Stable with Capacitive Loads

o Low 16µV

P-P

Noise (0.1Hz to 10Hz) (2.5V Output)

o 15mA Output Source Current

o Low 200mV Dropout Voltage

o Low 40µA Quiescent Current

o Wide 2.7V to 12.6V Supply Voltage

o Excellent Load Regulation: 0.001mV/mA

Ordering Information/Selector Guide

PART

OUTPUT

VOLTAGE (V)

TEMP COEFF

(ppm/°C)

INITIAL ACCURACY

(%)

TOP MARK

MAX6033AAUT25-T 2.500 10 0.04 ABDF

MAX6033AAUT25#TG16 2.500 10 0.04 #ACNC

MAX6033BAUT25-T 2.500 15 0.20 AAXL

MAX6033BAUT25#TG16 2.500 15 0.20 #ACND

MAX6033CAUT25-T 2.500 40 0.10 AAXH

MAX6033CAUT25#TG16 2.500 40 0.10 #ACNE

MAX6033AAUT30-T 3.000 10 0.04 ABDG

MAX6033AAUT30#TG16 3.000 10 0.04 #ACNF

MAX6033BAUT30-T 3.000 15 0.20 AAXM

MAX6033BAUT30#TG16 3.000 15 0.20 #ACNG

Ordering Information/Selector Guide continued on last page.

Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements.

T = Tape and reel.

Typical Operating Circuit appears at end of data sheet.

GND

INI.C.*

*I.C. = INTERNALLY CONNECTED: DO NOT USE

6 OUTS

5 OUTF

I.C.*

SOT23

TOP VIEW

MAX6033

Pin Configuration

19-2300; Rev 3; 3/12

Summary of content (11 pages)

PAGE 1
MAX6033 High-Precision, Low-Dropout SOT23 Series Voltage Reference General Description The MAX6033 ultra-high-precision series voltage reference features a low 7ppm/°C (max) temperature coefficient and a low dropout voltage (200mV, max). Low temperature drift and low noise make the MAX6033 ideal for use with high-resolution ADCs or DACs. This device uses bandgap technology for low-noise performance and excellent accuracy.
PAGE 2
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +13V OUTF, OUTS to GND................................................-0.3V to +6V Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW Operating Temperature Range .........................-40°C to +125°C Storage Temperature Range .............................
PAGE 3
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ELECTRICAL CHARACTERISTICS—VOUT = 3.000V (VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT CONDITIONS TA = +25oC TA = +25oC Output-Voltage Accuracy MAX6033A Output-Voltage Temperature Coefficient TCVOUT MAX6033B MAX6033C Input Voltage Range VIN MAX 3.0000 3.0012 MAX6033B 2.9940 3.0000 3.0060 3.0000 3.0030 MAX6033C 2.
PAGE 4
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ELECTRICAL CHARACTERISTICS—VOUT = 4.096V (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MAX6033A Output-Voltage Temperature Coefficient TCVOUT MAX6033B MAX6033C Input-Voltage Range VIN ∆VOUT/ ∆VIN 4.3V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA VDO Quiescent Supply Current IIN MIN MAX 1.
PAGE 5
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ELECTRICAL CHARACTERISTICS—VOUT = 5.000V (continued) (VIN = 5.5V, COUT = 0.1µF, IOUT = 0A, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS Line Regulation ∆VOUT/ ∆VIN 5.2V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA VDO ∆VOUT = 0.
PAGE 6
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA = +25°C, unless otherwise specified.) (Note 4) 5.004 5.003 5.002 TA = +85°C TA = -40°C TA = +25°C 4.
PAGE 7
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA = +25°C, unless otherwise specified.) (Note 4) LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 2.5V) MAX6033 toc13 VIN = 5V COUT = 0.1µF MAX6033 toc14 VIN = 5V COUT = 0.1µF VOUT 50mV/div AC-COUPLED 2.5V VOUT 50mV/div AC-COUPLED 2.5V 1mA IOUT 1mA/div -100µA 10mA IOUT 10mA/div 0 1ms/div 400µs/div LOAD TRANSIENT (VOUT = 2.
PAGE 8
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0A, TA = +25°C, unless otherwise specified.) (Note 4) TURN-ON TRANSIENT (VOUT = 2.5V) TURN-ON TRANSIENT (VOUT = 5V) MAX6033 toc19 TURN-ON TRANSIENT (VOUT = 2.5V) MAX6033 toc20 5.5V VIN 2V/div VIN 2V/div 0 VOUT 1V/div VOUT 2V/div 5V 100µs/div COUT = 10µF 2ms/div 400µs/div TURN-ON TRANSIENT (VOUT = 5V) MAX6033 toc22 2.50040 2.
PAGE 9
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Pin Description PIN NAME 1, 3 I.C. 2 GND 4 IN FUNCTION IN Internally Connected. Do not connect externally. ISOURCE MAX6033 OUTF Ground Positive Power-Supply Input 5 OUTF Voltage Reference Force Output. Short OUTF to OUTS as close to the device as possible. Bypass OUTF with 0.1µF (min) capacitor to GND. 6 OUTS Voltage Reference Sense OUTS GND Figure 1.
PAGE 10
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Ordering Information/Selector Guide (continued) OUTPUT VOLTAGE (V) TEMP COEFF (ppm/°C) INITIAL ACCURACY (%) TOP MARK MAX6033CAUT30-T 3.000 40 0.10 AAXI MAX6033CAUT30#TG16 3.000 40 0.10 #ACNH MAX6033AAUT41-T 4.096 10 0.04 ABDH MAX6033AAUT41#TG16 4.096 10 0.04 #ACNI MAX6033BAUT41-T 4.096 15 0.20 AAXN MAX6033BAUT41#TG16 4.096 15 0.20 #ACLG MAX6033CAUT41-T 4.096 40 0.10 AAXJ #ACNJ PART MAX6033CAUT41#TG16 4.
PAGE 11
MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Revision History REVISION NUMBER REVISION DATE 2 6/03 Various changes 3 3/12 Replaced Ordering Information table/Selector Guide, updated packaging information DESCRIPTION PAGES CHANGED — 1, 10 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.