MAXIM MAX6061, MAX6068 Technical data

General Description

The MAX6061–MAX6068 are precision, low-dropout,
micropower voltage references. These three-terminal
devices are available with output voltage options of

1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, and 5V.
They feature a proprietary curvature-correction circuit
and laser-trimmed thin-film resistors that result in a very
low temperature coefficient of 20ppm/°C (max) and an
initial accuracy of ±0.2% (max). Specifications apply to
the extended temperature range (-40°C to +85°C).

The MAX6061–MAX6068 typically draw only 90µA of
supply current and can source 5mA or sink 2mA of load
current. Unlike conventional shunt-mode (two-terminal)
references that waste supply current and require an
external resistor, these devices offer a supply current
that is virtually independent of the supply voltage
(8µA/V variation) and do not require an external resis­tor. Additionally, the internally compensated devices do
not require an external compensation capacitor.
Eliminating the external compensation capacitor saves
valuable board area in space-critical applications. Low
dropout voltage and supply independent, ultra-low sup­ply current make these devices ideal for battery-operat­ed, high-performance, low-voltage systems.

The MAX6061–MAX6068 are available in a 3-pin SOT23
package.

Applications

Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPSs, DMMs
Cellular Phones
Precision 3V/5V Systems

Features

♦ Ultra-Small 3-Pin SOT23 Package

♦ ±0.2% (max) Initial Accuracy

♦ 20ppm/°C (max) Temperature Coefficient

♦ 5mA Source Current

♦ 2mA Sink Current

♦ No Output Capacitor Required

♦ Stable with Capacitive Loads

♦ 90µA (typ) Quiescent Supply Current

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

♦ Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,

3V, 4.096V, 4.5V, 5V

♦ 13µVp-p Noise 0.1Hz to 10Hz (MAX6061)

MAX6061–MAX6068

Precision, Micropower, Low-Dropout,

High-Output-Current, SOT23 Voltage References

________________________________________________________________ Maxim Integrated Products 1

19-1659; Rev 1; 4/01

Ordering Information

Pin Configuration

Selector Guide

Note: There is a minimum order increment of 2500 pieces for
SOT23 packages.

Typical Operating Circuit appears at end of data sheet.

PART

OUTPUT

VOLTAGE (V)

INPUT VOLTAGE (V)

MAX6061 1.248 2.5 to 12.6

MAX6062 2.048 2.5 to 12.6

MAX6066 2.500 (V

OUT

+ 200mV) to 12.6

MAX6063 3.000 (V

OUT

+ 200mV) to 12.6

MAX6064 4.096 (V

OUT

+ 200mV) to 12.6

MAX6067 4.500 (V

OUT

+ 200mV) to 12.6

MAX6065 5.000 (V

OUT

+ 200mV) to 12.6

MAX6068 1.800 2.5 to 12.6

PART TEMP. RANGE

PIN­PACKAGE

TOP

MARK

MAX6061AEUR-T

-40°C to +85°C 3 SOT23-3

FZFP

MAX6061BEUR-T -40°C to +85°C 3 SOT23-3

FZFQ

MAX6062AEUR-T

-40°C to +85°C 3 SOT23-3

FZFY

MAX6062BEUR-T -40°C to +85°C 3 SOT23-3 FZFZ

MAX6063AEUR-T

-40°C to +85°C 3 SOT23-3 FZFV

MAX6063BEUR-T -40°C to +85°C 3 SOT23-3 FZFW
MAX6064AEUR-T

-40°C to +85°C 3 SOT23-3 FZGB
MAX6064BEUR-T -40°C to +85°C 3 SOT23-3 FZGC

MAX6065AEUR-T

-40°C to +85°C 3 SOT23-3 FZGE

MAX6065BEUR-T -40°C to +85°C 3 SOT23-3 FZGF
MAX6066AEUR-T

-40°C to +85°C 3 SOT23-3 FZFM
MAX6066BEUR-T -40°C to +85°C 3 SOT23-3 FZFN

Ordering Information continued at end of data sheet.

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.

TOP VIEW

OUT

1

IN

2

MAX6061–
MAX6068

SOT23-3

3 GND

MAX6061–MAX6068

Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX6061, V

OUT

= 1.25V

(VIN= +5V, I

OUT

= 0, TA= T

MIN

to T

MAX

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

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.

(Voltages Referenced to GND)

IN .........................................................................-0.3V to +13.5V

OUT .............................................................-0.3V to (V

IN

+ 0.3V)
Output Short-Circuit Duration to GND or IN (VIN< 6V)...Continuous

Output Short-Circuit Duration to GND or IN (VIN≥ 6V)................60s

Continuous Power Dissipation (T

A

= +70°C)

3-Pin SOT23 (derate 4.0mW/°C above +70°C)............320mW

Operating Temperature Range ...........................-40°C to +85°C

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

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

Output Voltage V

Output Voltage Temperature
Coefficient (Note 2)

Line Regulation

Load Regulation

OUT Short-Circuit Current I

Long-Term Stability

Output Voltage Hysteresis (Note 3)

DYNAMIC CHARACTERISTICS

Noise Voltage e

Ripple Rejection

Turn-On Settling Time t

INPUT CHARACTERISTICS

Supply Voltage Range V

Quiescent Supply Current I

Change in Supply Current

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OUT

TCV

∆V

∆V

∆V

∆I

∆V

time

∆V

cycle

OUT

∆V

∆V

∆I
∆V

TA = +25°C

MAX6061A 6 20

OUT

MAX6061B 6 30

/

OUT

2.5V ≤ VIN ≥ 12.6V 10 90 µV/V

IN

Sourcing: 0 ≤ I

/

OUT
OUT Sinking: -2mA ≤ I

Short to GND 25

SC

Short to IN 25

/

OUT

1000hr at +25°C62

/

OUT

f = 0.1Hz to 10Hz 13 µVp-p

f = 10Hz to 10kHz 15 µV

/

OUT

V

= 5V ± 100mV, f = 120Hz 86 dB

IN

IN

R

IN

IN

/

IN

IN

To V

Guaranteed by line regulation test

2.5V ≤ VIN ≤ 12.6V 3.4 8.0 µA/V

= 0.1% of final value, C

OUT

MAX6061A (0.32%) 1.244 1.248 1.252

MAX6061B (0.48%) 1.242 1.248 1.254

≤ 5mA 0.5 0.9

OUT

≤ 0 1.3 3.0

OUT

130 ppm

= 50pF 50 µs

OUT

2.5

90 125 µA

V

ppm/°C

mV/mA

mA

ppm/

1000hr

RMS

12.6 V

MAX6061–MAX6068

Precision, Micropower, Low-Dropout,

High-Output-Current, SOT23 Voltage References

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—MAX6068, V

OUT

= 1.80V

(VIN= +5V, TA= T

MIN

to T

MAX

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

Output Voltage V

Output Voltage Temperature
Coefficient (Note 2)

Line Regulation

Load Regulation

OUT Short-Circuit Current I

Long-Term Stability

Output Voltage Hysteresis (Note 3)

DYNAMIC CHARACTERISTICS

Noise Voltage e

Ripple Rejection

Turn-On Settling Time t

INPUT CHARACTERISTICS

Supply Voltage Range V

Quiescent Supply Current I

Change in Supply Current

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OUT

TCV

∆V

∆V

∆V

∆I

OUT Sinking: -2mA ≤ I

SC

∆V

time

∆V

cycle

OUT

∆V

∆V

∆I
∆V

TA = +25°C

MAX6068A 6 20

OUT

MAX6068B 6 30

/

OUT

2.5V ≤ VIN ≥ 12.6V 33 200 µV/V

IN

Sourcing: 0 ≤ I

/

OUT

Short to GND 25

Short to IN 25

/

OUT

1000hr at +25°C62

/

OUT

f = 0.1Hz to 10Hz 22 µVp-p

f = 10Hz to 10kHz 25 µV

/

OUT

V

= 5V ±100mV, f = 120Hz 86 dB

IN

IN

R

IN

IN

/

IN

IN

To V

Guaranteed by line regulation test 2.5 12.6 V

2.5V ≤ VIN ≤ 12.6V 3.3 8.0 µA/V

= 0.1% of final value, C

OUT

≤ 5mA 0.5 0.9

OUT

≤ 0 1.5 4

OUT

MAX6068A (0.17%) 1.797 1.800 1.803

MAX6068B (0.39%) 1.793 1.800 1.807

130 ppm

= 50pF 115 µs

OUT

90 125 µA

V

ppm/°C

mV/mA

mA

ppm/

1000hr

RMS

MAX6061–MAX6068

Precision, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX6062, V

OUT

= 2.048V

(VIN= +5V, I

OUT

= 0, TA= T

MIN

to T

MAX

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

MAX6062B (0.39%)

MAX6062A (0.24%)

Output Voltage V

OUT

2.043 2.048 2.053

PARAMETER SYMBOL MIN TYP MAX UNITS

OUT Short-Circuit Current I

SC

25

mA

1.5 4

Load Regulation

∆V

OUT

/

∆I

OUT

0.5 0.9
mV/mA

Line Regulation

∆V

OUT

/

∆V

IN

33 200

µV/V

25

Long-Term Stability

∆V

OUT

/

time

62

ppm/

1000hr

Output Voltage Hysteresis
(Note 3)

∆V

OUT

/

cycle

130

ppm

Output Voltage Temperature
Coefficient (Note 2)

2.040 2.048 2.056

TCV

OUT

620

ppm/°C

630

Noise Voltage e

OUT

22

µVp-p

25

µV

RMS

Ripple Rejection

∆V

OUT

/

∆V

IN

86

dB

Turn-On Settling Time t

R

115

µs

Supply Voltage Range V

IN

2.5 12.6

V

Quiescent Supply Current I

IN

90 125

µA

Change in Supply Current IIN/V

IN

3.3 8.0

µA/V

CONDITIONS

f = 0.1Hz to 10Hz

Short to GND

f = 10Hz to 10kHz

Sinking: -2mA ≤ I

OUT

≤ 0

Sourcing: 0 ≤ I

OUT

≤ 5mA

2.5V ≤ VIN≤ 12.6V

Short to IN

1000hr at +25°C

VIN= 5V ±100mV, f = 120Hz

To V

OUT

= 0.1% of final value, C

OUT

= 50pF

Guaranteed by line-regulation test

TA= +25°C

MAX6062A

2.5V ≤ VIN≤ 12.6V

MAX6062B

V

DYNAMIC CHARACTERISTICS

INPUT CHARACTERISTICS

MAX6061–MAX6068

Precision, Micropower, Low-Dropout,

High-Output-Current, SOT23 Voltage References

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS—MAX6066, V

OUT

= 2.500V

(VIN= +5V, I

OUT

= 0, TA= T

MIN

to T

MAX

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

MAX6066B (0.4%)

MAX6066A (0.2%)

TA= +25°C V

2.495 2.500 2.505

V

OUT

Output Voltage

MAX6066B

(V

OUT

+ 0.2V) ≤ VIN≤ 12.6V

MAX6066A

Guaranteed by line-regulation test

To V

OUT

= 0.1% of final value, C

OUT

= 50pF

VIN= 5V ±100mV, f = 120Hz

1000hr at +25°C

Short to IN

(V

OUT

+ 0.2V) ≤ VIN≤ 12.6V

Sourcing: 0 ≤ I

OUT

≤ 5mA

Sinking: -2mA ≤ I

OUT

≤ 0

f = 10Hz to 10kHz

Short to GND

f = 0.1Hz to 10Hz

CONDITIONS

µA/V

3.3 8.0

IIN/V

IN

Change in Supply Current

µA

90 125

I

IN

Quiescent Supply Current

V

V

OUT

+ 0.2 12.6

V

IN

Supply Voltage Range

µs

115

t

R

Turn-On Settling Time

dB

86

∆V

OUT

/

∆V

IN

Ripple Rejection

µV

RMS

30

µVp-p

27

e

OUT

Noise Voltage

630

ppm/°C

620

TCV

OUT

2.490 2.500 2.510

Output Voltage Temperature
Coefficient (Note 2)

ppm

130

∆V

OUT

/

cycle

Output Voltage Hysteresis
(Note 3)

ppm/

1000hr

62

∆V

OUT

/

time

Long-Term Stability

25

µV/V

60 300

∆V

OUT

/

∆V

IN

Line Regulation

mV/mA

0.5 0.9

∆V

OUT

/

∆I

OUT

Load Regulation

1.6 5

mA

25

I

SC

OUT Short-Circuit Current

UNITSMIN TYP MAXSYMBOLPARAMETER

I

OUT

= 1mA mV

50 200

V

IN

-

V

OUT

Dropout Voltage (Note 4)

DYNAMIC CHARACTERISTICS

INPUT CHARACTERISTICS