General Description
The MAX6133 high-precision, low-power, low-dropout
voltage reference features a low 3ppm/°C (max) temperature coefficient and a low dropout voltage (200mV,
max). This series-mode device features bandgap technology for low-noise performance and excellent accuracy. Load regulation specifications are guaranteed for
source currents up to 15mA. The laser-trimmed, highstability thin-film resistors, together with post-package
trimming, guarantee an excellent initial accuracy specification (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 packages. The unique blend of tiny packaging and excellent
precision performance make these parts ideally suited
for portable and communication applications.
Applications
Precision Regulators
A/D and D/A Converters
Power Supplies
High-Accuracy Industrial and Process Control
Hand-Held Instruments
Features
♦ Low Temperature Coefficient
3ppm/°C (max), SO
5ppm/°C (max), µMAX
♦ Tiny 5mm
✕ 3mm µMAX Package
♦ Low 200mV (max) Dropout Voltage
♦ Low 40µA Quiescent Current
♦ ±0.04% (max) Initial Accuracy
♦ Low 16µV
P-P
Noise (0.1Hz to 10Hz) (2.5V Output)
♦ 15mA Output Source-Current Capability
♦ Wide 2.7V to 12.6V Supply Voltage
♦ Excellent Line (30µV/V, max) and
Load (0.05mV/mA, max) Regulation
MAX6133
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
________________________________________________________________ Maxim Integrated Products 1
Pin Configuration
Ordering Information
MAX6133
OUT
SUPPLY INPUT
GND
*INPUT CAPACITORS ARE OPTIONAL.
IN
0.1µF*
REFERENCE
OUTPUT
0.1µF
Typical Operating Circuit
19-2266; Rev 2; 6/03
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.
Note: Two-number part suffix indicates output voltage option.
SUFFIX VOLTAGE OUTPUT
25 2.500V
30 3.000V
41 4.096V
50 5.000V
PART TEMP RANGE PIN-PACKAGE
MAX6133A_ _ -40°C to +125°C 8 µMAX 0.06 5
MAX6133AASA_ _ -40°C to +125°C 8 SO 0.04 3
MAX6133BASA_ _ -40°C to +125°C 8 SO 0.08 5
MAXIMUM INITIAL
ACCURACY (%)
TOP VIEW
*INTERNALLY CONNECTED, DO NOT CONNECT.
MAXIMUM TEMPCO
(ppm/°C, -40°C to +85°C)
N.C.
N.C.
1
2
MAX6133
3
4
SO/µMAX
87I.C.*
N.C.IN
OUT
6
I.C.*GND
5
MAX6133
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6133_25 (V
OUT
= 2.500V)
(VIN= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, TA= T
MIN
to T
MAX
. Typical values are at TA = +25°C, unless otherwise noted.)
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.
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage V
Output Voltage
Accuracy
Output Voltage
Temperature
Coefficient (Note 1)
Input Voltage Range V
Line Regulation ∆V
Load Regulation ∆V
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise e
Turn-On Settling Time t
Thermal Hysteresis
(Note 3)
Long-Term Stability ∆t = 1000 hours
OUT
TCV
OUT
IN
/∆VIN2.7V ≤ VIN ≤ 12.6V 2 30 µV/V
OUT
/∆I
OUT
OUT
V
DO
I
IN
I
SC
n
ON
TA = +25°C
T
= +25°C
A
A grade SO
B grade SO
µMAX
Inferred from line regulation 2.7 12.6 V
-100µA ≤ I
∆V
OUT
∆V
OUT
TA = +25°C4060
TA = -40°C to +125°C85
Short to GND: V
Short to VIN: V
0.1Hz ≤ f ≤ 10Hz 16 µV
10Hz ≤ f ≤ 1kHz 12 µV
V
settles to ±0.01% of final value 500 µs
OUT
A grade SO 2.4990 2.5000 2.5010
B grade SO 2.4980 2.5000 2.5020
µMAX 2.4985 2.5000 2.5015
A grade SO -0.04 +0.04
B grade SO -0.08 +0.08
µMAX -0.06 +0.06
TA = -40°C to +85°C13
T
= -40°C to +125°C47
A
TA = -40°C to +85°C35
T
= -40°C to +125°C510
A
TA = -40°C to +85°C15
T
= -40°C to +125°C27
A
≤ 15mA 0.003 0.05 mV/mA
OUT
= 0.1%, I
= 0.1%, I
= 1mA 0.02 0.2
OUT
= 10mA 0.2 0.4
OUT
= 0V 90
OUT
= V
OUT
IN
SO 40
µMAX 145
-2
120 ppm
V
%
ppm/°C
V
µA
mA
P-P
RMS
ppm
MAX6133
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX6133_30 (V
OUT
= 3.0000V)
(VIN= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, TA= T
MIN
to T
MAX
. Typical values are at TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage V
Output Voltage
Accuracy
Output Voltage
Temperature
Coefficient (Note 1)
Input Voltage Range V
Line Regulation ∆V
Load Regulation ∆V
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise e
Turn-On Settling Time t
Thermal Hysteresis
(Note 3)
Long-Term Stability ∆t = 1000 hours
OUT
TCV
OUT
IN
/∆VIN3.2V ≤ VIN ≤ 12.6V 2 30 µV/V
OUT
/∆I
OUT
OUT
V
DO
I
IN
I
SC
n
ON
TA = +25°C
= +25°C
T
A
A grade SO
B grade SO
µMAX
Inferred from line regulation 3.2 12.6 V
-100µA ≤ I
∆V
OUT
∆V
OUT
TA = +25°C4060
TA = -40°C to +125°C85
Short to GND: V
Short to VIN: V
0.1Hz ≤ f ≤ 10Hz 24 µV
10Hz ≤ f ≤ 1kHz 15 µV
V
settles to ±0.01% of final value 600 µs
OUT
A grade SO 2.9988 3.0000 3.0012
B grade SO 2.9976 3.0000 3.0024
µMAX 2.9982 3.0000 3.0018
A grade SO -0.04 +0.04
B grade SO -0.08 +0.08
µMAX -0.06 +0.06
TA = -40°C to +85°C13
= -40°C to +125°C47
T
A
TA = -40°C to +85°C35
= -40°C to +125°C510
T
A
TA = -40°C to +85°C15
T
= -40°C to +125°C27
A
≤ 15mA 0.003 0.06 mV/mA
OUT
= 0.1%, I
= 0.1%, I
= 1mA 0.01 0.2
OUT
= 10mA 0.2 0.4
OUT
= 0V 90
OUT
= V
OUT
IN
SO 40
µMAX 145
-2
120 ppm
V
%
ppm/°C
V
µA
mA
P-P
RMS
ppm
MAX6133
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX6133_41 (V
OUT
= 4.096V)
(VIN= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, TA= T
MIN
to T
MAX
. Typical values are at TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage V
Output Voltage
Accuracy
Output Voltage
Temperature
Coefficient (Note 1)
Input Voltage Range V
Line Regulation ∆V
Load Regulation ∆V
Dropout Voltage
(Note 2)
Quiescent Supply
Current
Output Short-Circuit
Current
Output Voltage Noise e
Turn-On Settling Time t
Thermal Hysteresis
(Note 3)
Long-Term Stability ∆t = 1000 hours
OUT
TCV
OUT
IN
/∆VIN4.2V ≤ VIN ≤ 12.6V 2 40 µV/V
OUT
/∆I
OUT
OUT
V
DO
I
IN
I
SC
n
ON
TA = +25°C
= +25°C
T
A
A grade SO
B grade SO
µMAX
Inferred from line regulation 4.2 12.6 V
-100µA ≤ I
∆V
OUT
∆V
OUT
TA = +25°C4565
TA = -40°C to +125°C85
Short to GND: V
Short to VIN: V
0.1Hz ≤ f ≤ 10Hz 32 µV
10Hz ≤ f ≤ 1kHz 22 µV
V
settles to ±0.01% of final value 800 µs
OUT
A grade SO 4.0943 4.0960 4.0977
B grade SO 4.0927 4.0960 4.0993
µMAX 4.0935 4.0960 4.0985
A grade SO -0.04 +0.04
B grade SO -0.08 +0.08
µMAX -0.06 +0.06
TA = -40°C to +85°C13
T
A
TA = -40°C to +85°C35
T
A
TA = -40°C to +85°C15
T
A
≤ 15mA 0.003 0.08 mV/mA
OUT
= 0.1%, I
= 0.1%, I
= 1mA 0.01 0.2
OUT
= 10mA 0.2 0.4
OUT
= 0V 90
OUT
= V
OUT
IN
SO 40
µMAX 145
V
%
= -40°C to +125°C47
= -40°C to +125°C510
= -40°C to +125°C27
-2
120 ppm
ppm/°C
V
µA
mA
P-P
RMS
ppm