Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - voltage reference Series Adjustable SC 70 3

General Description

The MAX6034 family of precision, low-dropout, microp-

ower voltage references are available in the miniature

3-pin SC70 surface-mount package. They feature a

proprietary temperature coefficient curvature-correction

circuit and laser-trimmed, thin-film resistors that result

in a low temperature coefficient of 30ppm/°C (max) and

initial accuracy of ±0.20% (max). These devices are

available over the extended temperature range of -40°C

to +85°C.

The MAX6034 family of series-mode voltage references

typically draw only 90µA of supply current and can

source 1mA and sink 200µA of load current. Unlike

conventional shunt-mode (two terminal) references that

waste supply current and require an external resistor,

devices in the MAX6034 family offer supply current that

is virtually independent of supply voltage (16µA/V, max

variation) and do not require an external resistor. These

internally compensated devices do not require an

external compensation capacitor, but are stable with up

to 1µF of load capacitance. Eliminating the external

compensation capacitor saves valuable board space in

space-critical applications. The low dropout voltage

and supply-independent, ultra-low supply current make

the MAX6034 ideal for battery-powered applications.

Applications

Hand-Held Equipment

Data-Acquisition Systems

Industrial and Process Control Systems

Battery-Operated Equipment

Hard-Disk Drives

Features

♦ Ultra-Small, 3-Pin SC70 Package

♦ ±0.2% (max) Initial Accuracy

♦ 30ppm/°C (max) Temperature Coefficient

♦ 90µA Supply Current

♦ 200mV (max) Dropout Voltage at 1mA Load

Current

♦ Stable with C

LOAD

= 0 to 1µF

♦ No Output Capacitor Needed

MAX6034

Precision, Micropower, Low-Dropout, SC70

Series Voltage Reference

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2428; Rev 0; 4/02

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.

PART TEMP RANGE

PI N -

PA C K A G E

TOP

MARK

MAX6034AEXR21-T -40°C to +85°C 3 SC70-3 AJH

MAX6034BEXR21-T -40°C to +85°C 3 SC70-3 AJM

MAX6034AEXR25-T -40°C to +85°C 3 SC70-3 AJI

MAX6034BEXR25-T -40°C to +85°C 3 SC70-3 AJN

MAX6034AEXR30-T -40°C to +85°C 3 SC70-3 AJJ

MAX6034BEXR30-T -40°C to +85°C 3 SC70-3 AJO

MAX6034AEXR33-T -40°C to +85°C 3 SC70-3 AJK

MAX6034BEXR33-T -40°C to +85°C 3 SC70-3 AJP

MAX6034AEXR41-T -40°C to +85°C 3 SC70-3 AJL

MAX6034BEXR41-T -40°C to +85°C 3 SC70-3 AJQ

PART

OUT INPUT VOLTAGE (V)

MAX6034_EXR21-T 2.048 2.5 to 5.5

MAX6034_EXR25-T 2.500 (V

OUT

+ 200mV) to 5.5

MAX6034_EXR30-T 3.000 (V

OUT

+ 200mV) to 5.5

MAX6034_EXR33-T 3.300 (V

OUT

+ 200mV) to 5.5

MAX6034_EXR41-T 4.096 (V

OUT

+ 200mV) to 5.5

Selector Guide

OUT

3 GND

MAX6034

SC70

TOP VIEW

Pin Configuration

MAX6034

*CAPACITOR IS OPTIONAL.

REFERENCE

OUT

GND

+SUPPLY INPUT (SEE SELECTOR GUIDE)

Typical Operating Circuit

Summary of content (13 pages)

PAGE 1
9-2428; Rev 0; 4/02 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference Features ♦ Ultra-Small, 3-Pin SC70 Package The MAX6034 family of series-mode voltage references typically draw only 90µA of supply current and can source 1mA and sink 200µA of load current.
PAGE 2
MAX6034 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference ABSOLUTE MAXIMUM RATINGS Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C (Voltages Referenced to GND) IN ...........................................................................-0.
PAGE 3
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference (VIN = 2.7V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT Output Voltage VOUT Output Voltage Temperature Coefficient (Note 2) TCVOUT Line Regulation ∆VOUT/ ∆VIN Load Regulation ∆VOUT/ ∆IOUT OUT Short-Circuit Current ISC VIN VOUT Dropout Voltage MAX6034A_25 (±0.2%) 2.495 2.500 2.505 MAX6034B_25 (±0.4%) 2.490 2.
PAGE 4
MAX6034 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference ELECTRICAL CHARACTERISTICS–MAX6034_30 (VOUT = 3.000V) (VIN = 5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX6034A_30 (±0.2%) 2.994 3.000 3.006 MAX6034B_30 (±0.4%) 2.988 MAX6034A_30 3.000 7 3.012 30 MAX6034B_30 7 75 (VOUT + 200mV) ≤ VIN ≤ 5.5V 43 280 Sourcing: 0 ≤ IOUT ≤ 1mA 0.30 1.
PAGE 5
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference (VIN = 5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6034A_33 (±0.2%) 3.293 3.300 3.307 MAX6034B_33 (±0.4%) 3.287 3.300 3.313 MAX6034A_33 7 30 MAX6034B_33 7 75 (VOUT + 200mV) ≤ VIN ≤ 5.5V 45 300 Sourcing: 0 ≤ IOUT ≤ 1mA 0.3 1.3 Sinking: 0 ≤ IOUT ≤ 200µA 3 8.
PAGE 6
MAX6034 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference ELECTRICAL CHARACTERISTICS–MAX6034_41 (VOUT = 4.096V) (VIN = 5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6034A_41 (±0.2%) 4.088 4.096 4.104 MAX6034B_41 (±0.4%) 4.080 MAX6034A_41 4.096 7 4.112 30 MAX6034B_41 7 75 (VOUT + 200mV) ≤ VIN ≤ 5.5V 50 350 Sourcing: 0 ≤ IOUT ≤ 1mA 0.35 1.5 Sinking: 0 ≤ IOUT ≤ 200µA 3.
PAGE 7
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference THREE TYPICAL PARTS 2.049 2.047 OUTPUT VOLTAGE (V) 4.102 OUTPUT VOLTAGE (V) 2.051 2.050 MAX6034 toc02 THREE TYPICAL PARTS OUTPUT VOLTAGE (V) 4.106 MAX6034 toc01 2.053 MAX6034_21 LONG-TERM DRIFT (VOUT = 2.048V) MAX6034_41 OUTPUT VOLTAGE TEMPERATURE DRIFT (VOUT = 4.096V) 4.098 4.094 MAX6034 toc03 MAX6034_21 OUTPUT VOLTAGE TEMPERATURE DRIFT (VOUT = 2.048V) 2.049 2.048 2.047 4.090 2.
PAGE 8
Typical Operating Characteristics (continued) (VIN = 2.7V for MAX6034_21/25, VIN = 5V for MAX6034_30/33/41, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 6) TA = +85°C TA = +25°C 0.05 TA = -40°C TA = +85°C 2 TA = +25°C 1 TA = -40°C 0 TA = -40°C -1 TA = +25°C TA = +85°C SINK -2 3 TA = +85°C 0.2 0.4 0.6 0.8 TA = +25°C 1 TA = -40°C 0 TA = -40°C -1 1.
PAGE 9
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference MAX6034_25 LOAD TRANSIENT MAX6034_25 LOAD TRANSIENT MAX6034 toc19 MAX6034 toc18 +10µA IOUT -10µA +10µA IOUT -10µA VOUT 10mV/div AC-COUPLED CLOAD = 0 ILOAD = ±10µA VOUT = 2.5V VOUT 2mV/div AC-COUPLED CLOAD = 1µF ILOAD = ±10µA VOUT = 2.
PAGE 10
MAX6034 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference Typical Operating Characteristics (continued) (VIN = 2.7V for MAX6034_21/25, VIN = 5V for MAX6034_30/33/41, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 6) MAX6034_41 LOAD TRANSIENT MAX6034_25 TURN-ON TRANSIENT MAX6034_41 LOAD TRANSIENT MAX6034 toc24 MAX6034 toc26 MAX6034 toc25 +1mA IOUT +1mA IOUT 2.7V -0.2mA -0.2mA VIN 0 VOUT 100mV/div AC-COUPLED CLOAD = 0 ILOAD = +1mA/-0.2mA VOUT = 4.096V 2.
PAGE 11
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference PIN NAME 1 IN FUNCTION 2 OUT Reference Voltage Output 3 GND Ground Supply Voltage Input Detailed Description The MAX6034 family of precision bandgap references use a proprietary temperature coefficient curvature-correction circuit and laser-trimmed, thin-film resistors, resulting in a low temperature coefficient of less than 30ppm/°C and initial accuracy of better than 0.2%.
PAGE 12
MAX6034 Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference 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 10 OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C) Figure 1. Temperature Coefficient vs.
PAGE 13
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference SC70, 3L.EPS Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.