19-2266; Rev 2; 6/03
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
General Description
The MAX6133 high-precision, low-power, low-dropout
voltage reference features a low 3ppm/°C (max) temper-
ature coefficient and a low dropout voltage (200mV,
max). This series-mode device features bandgap tech-
nology for low-noise performance and excellent accura-
cy. Load regulation specifications are guaranteed for
source currents up to 15mA. The laser-trimmed, high-
stability thin-film resistors, together with post-package
trimming, guarantee an excellent initial accuracy specifi-
cation (0.04%, max). The MAX6133 is a series voltage
reference and consumes only 40µA of supply current
(virtually independent of supply voltage). Series-mode
references save system power and use minimal external
components compared to 2-terminal shunt references.
The MAX6133 is available in 8-pin µMAX and SO pack-
ages. The unique blend of tiny packaging and excellent
precision performance make these parts ideally suited
for portable and communication applications.
o
Low Temperature Coefficient
3ppm/°C (max), SO
5ppm/°C (max), µMAX
o
Tiny 5mm
✕
3mm µMAX Package
o
Low 200mV (max) Dropout Voltage
o
Low 40µA Quiescent Current
o
±0.04% (max) Initial Accuracy
o
Low 16µV
P-P
Noise (0.1Hz to 10Hz) (2.5V Output)
o
15mA Output Source-Current Capability
o
Wide 2.7V to 12.6V Supply Voltage
o
Excellent Line (30µV/V, max) and
Load (0.05mV/mA, max) Regulation
Features
MAX6133
Applications
Precision Regulators
A/D and D/A Converters
Power Supplies
High-Accuracy Industrial and Process Control
Hand-Held Instruments
SUFFIX
25
30
41
50
Selector Guide
VOLTAGE OUTPUT
2.500V
3.000V
4.096V
5.000V
Ordering Information
PART
MAX6133A_ _
MAX6133AASA_ _
MAX6133BASA_ _
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 µMAX
8 SO
8 SO
MAXIMUM INITIAL
ACCURACY (%)
0.06
0.04
0.08
MAXIMUM TEMPCO
(ppm/°C, -40°C to +85°C)
5
3
5
Note:
Two-number part suffix indicates output voltage option.
Typical Operating Circuit
SUPPLY INPUT
IN
OUT
0.1µF*
REFERENCE
OUTPUT
0.1µF
N.C.
3
Pin Configuration
TOP VIEW
N.C.
1
8
7
I.C.*
N.C.
OUT
I.C.*
IN
2
MAX6133
6
5
GND
4
MAX6133
GND
SO/µMAX
*INPUT CAPACITORS ARE OPTIONAL.
*INTERNALLY CONNECTED, DO NOT CONNECT.
________________________________________________________________
Maxim Integrated Products
1
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.
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
MAX6133
ABSOLUTE MAXIMUM RATINGS
Voltage (with Respect to GND)
IN ........................................................................-0.3V to +13V
OUT..............................................-0.3V to +6V or (V
IN
+ 0.3V)
OUT Short Circuit to IN or GND Duration ...............................60s
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 5.5mW/°C above +70°C) .............362mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS—MAX6133_25 (V
OUT
= 2.500V)
(V
IN
= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Output Voltage
SYMBOL
V
OUT
T
A
= +25°C
CONDITIONS
A grade SO
B grade SO
µMAX
A grade SO
T
A
= +25°C
B grade SO
µMAX
A grade SO
Output Voltage
Temperature
Coefficient (Note 1)
TCV
OUT
B grade SO
µMAX
Input Voltage Range
Line Regulation
Load Regulation
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise
Turn-On Settling Time
Thermal Hysteresis
(Note 3)
Long-Term Stability
∆t
= 1000 hours
SO
µMAX
V
IN
∆V
OUT
/∆V
IN
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
2.7
2
0.003
0.02
0.2
40
90
-2
16
12
500
120
40
145
MIN
2.4990
2.4980
2.4985
-0.04
-0.08
-0.06
1
4
3
5
1
2
TYP
2.5000
2.5000
2.5000
MAX
2.5010
2.5020
2.5015
+0.04
+0.08
+0.06
3
7
5
10
5
7
12.6
30
0.05
0.2
0.4
60
85
V
µV/V
mV/mA
V
µA
mA
µV
P-P
µV
RMS
µs
ppm
ppm
ppm/°C
%
V
UNITS
Output Voltage
Accuracy
Inferred from line regulation
2.7V
≤
V
IN
≤
12.6V
∆V
OUT
= 0.1%, I
OUT
= 1mA
∆V
OUT
= 0.1%, I
OUT
= 10mA
T
A
= +25°C
T
A
= -40°C to +125°C
Short to GND: V
OUT
= 0V
Short to V
IN
: V
OUT
= V
IN
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
V
OUT
settles to ±0.01% of final value
∆V
OUT
/∆I
OUT
-100µA
≤
I
OUT
≤
15mA
V
DO
I
IN
I
SC
e
n
t
ON
2
_______________________________________________________________________________________
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6133_30 (V
OUT
= 3.0000V)
(V
IN
= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Output Voltage
SYMBOL
V
OUT
T
A
= +25°C
CONDITIONS
A grade SO
B grade SO
µMAX
A grade SO
Output Voltage
Accuracy
T
A
= +25°C
B grade SO
µMAX
A grade SO
Output Voltage
Temperature
Coefficient (Note 1)
TCV
OUT
B grade SO
µMAX
Input Voltage Range
Line Regulation
Load Regulation
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise
Turn-On Settling Time
Thermal Hysteresis
(Note 3)
Long-Term Stability
∆t
= 1000 hours
SO
µMAX
V
IN
∆V
OUT
/∆V
IN
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
3.2
2
0.003
0.01
0.2
40
90
-2
24
15
600
120
40
145
MIN
2.9988
2.9976
2.9982
-0.04
-0.08
-0.06
1
4
3
5
1
2
TYP
3.0000
3.0000
3.0000
MAX
3.0012
3.0024
3.0018
+0.04
+0.08
+0.06
3
7
5
10
5
7
12.6
30
0.06
0.2
0.4
60
85
V
µV/V
mV/mA
V
µA
mA
µV
P-P
µV
RMS
µs
ppm
ppm
ppm/°C
%
V
UNITS
MAX6133
Inferred from line regulation
3.2V
≤
V
IN
≤
12.6V
∆V
OUT
= 0.1%, I
OUT
= 1mA
∆V
OUT
= 0.1%, I
OUT
= 10mA
T
A
= +25°C
T
A
= -40°C to +125°C
Short to GND: V
OUT
= 0V
Short to V
IN
: V
OUT
= V
IN
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
V
OUT
settles to
±0.01%
of final value
∆V
OUT
/∆I
OUT
-100µA
≤
I
OUT
≤
15mA
V
DO
I
IN
I
SC
e
n
t
ON
_______________________________________________________________________________________
3
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
MAX6133
ELECTRICAL CHARACTERISTICS—MAX6133_41 (V
OUT
= 4.096V)
(V
IN
= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Output Voltage
SYMBOL
V
OUT
T
A
= +25°C
CONDITIONS
A grade SO
B grade SO
µMAX
A grade SO
Output Voltage
Accuracy
T
A
= +25°C
B grade SO
µMAX
A grade SO
Output Voltage
Temperature
Coefficient (Note 1)
TCV
OUT
B grade SO
µMAX
Input Voltage Range
Line Regulation
Load Regulation
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise
Turn-On Settling Time
Thermal Hysteresis
(Note 3)
Long-Term Stability
∆t
= 1000 hours
SO
µMAX
V
IN
∆V
OUT
/∆V
IN
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
4.2
2
0.003
0.01
0.2
45
90
-2
32
22
800
120
40
145
MIN
4.0943
4.0927
4.0935
-0.04
-0.08
-0.06
1
4
3
5
1
2
TYP
4.0960
4.0960
4.0960
MAX
4.0977
4.0993
4.0985
+0.04
+0.08
+0.06
3
7
5
10
5
7
12.6
40
0.08
0.2
0.4
65
85
V
µV/V
mV/mA
V
µA
mA
µV
P-P
µV
RMS
µs
ppm
ppm
ppm/°C
%
V
UNITS
Inferred from line regulation
4.2V
≤
V
IN
≤
12.6V
∆V
OUT
= 0.1%, I
OUT
= 1mA
∆V
OUT
= 0.1%, I
OUT
= 10mA
T
A
= +25°C
T
A
= -40°C to +125°C
Short to GND: V
OUT
= 0V
Short to V
IN
: V
OUT
= V
IN
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
V
OUT
settles to ±0.01% of final value
∆V
OUT
/∆I
OUT
-100µA
≤
I
OUT
≤
15mA
V
DO
I
IN
I
SC
e
n
t
ON
4
_______________________________________________________________________________________
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6133_50 (V
OUT
= 5.000V)
(V
IN
= 5.5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Output Voltage
SYMBOL
V
OUT
T
A
= +25°C
CONDITIONS
A grade SO
B grade SO
µMAX
A grade SO
Output Voltage
Accuracy
T
A
= +25°C
B grade SO
µMAX
A grade SO
Output Voltage
Temperature
Coefficient (Note 1)
TCV
OUT
B grade SO
µMAX
Input Voltage Range
Line Regulation
Load Regulation
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise
Turn-On Settling Time
Thermal Hysteresis
(Note 3)
Long-Term Stability
∆t
= 1000 hours
SO
µMAX
V
IN
∆V
OUT
/∆V
IN
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
5.2
2
0.01
0.02
0.2
40
90
-2
40
26
1000
120
40
145
MIN
4.9980
4.9960
4.9970
-0.04
-0.08
-0.06
1
4
3
5
1
2
TYP
5.0000
5.0000
5.0000
MAX
5.0020
5.0040
5.0030
+0.04
+0.08
+0.06
3
7
5
10
5
7
12.6
50
0.10
0.2
0.4
60
85
V
µV/V
mV/mA
V
µA
mA
µV
P-P
µV
RMS
µs
ppm
ppm
ppm/°C
%
V
UNITS
MAX6133
Inferred from line regulation
5.2V
≤
V
IN
≤
12.6V
∆V
OUT
= 0.1%, I
OUT
= 1mA
∆V
OUT
= 0.1%, I
OUT
= 10mA
T
A
= +25°C
T
A
= -40°C to +125°C
Short to GND: V
OUT
= 0V
Short to V
IN
: V
OUT
= V
IN
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
V
OUT
settles to
±0.01%
of final value
∆V
OUT
/∆I
OUT
-100µA
≤
I
OUT
≤
15mA
V
DO
I
IN
I
SC
e
n
t
ON
Note 1:
The MAX6133 is 100% drift-tested for T
A
= T
MIN
to T
MAX
, as specified.
Note 2:
Dropout Voltage is the minimum voltage at which V
OUT
changes
≤
0.1% from V
OUT
at V
IN
= 5V (V
IN
= 5.5V for V
OUT
= 5V).
Note 3:
Thermal Hysteresis is defined as the change in the initial +25°C output voltage after cycling the device from T
MAX
to T
MIN
.
_______________________________________________________________________________________
5
