19-2428; Rev 0; 4/02
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
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.
o
Ultra-Small, 3-Pin SC70 Package
o
±0.2% (max) Initial Accuracy
o
30ppm/°C (max) Temperature Coefficient
o
90µA Supply Current
o
200mV (max) Dropout Voltage at 1mA Load
Current
o
Stable with C
LOAD
= 0 to 1µF
o
No Output Capacitor Needed
Features
MAX6034
Ordering Information
PART
MAX6034AEXR21-T
MAX6034BEXR21-T
MAX6034AEXR25-T
MAX6034BEXR25-T
MAX6034AEXR30-T
MAX6034BEXR30-T
MAX6034AEXR33-T
MAX6034BEXR33-T
MAX6034AEXR41-T
MAX6034BEXR41-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
TOP
MARK
AJH
AJM
AJI
AJN
AJJ
AJO
AJK
AJP
AJL
AJQ
Applications
Hand-Held Equipment
Data-Acquisition Systems
Industrial and Process Control Systems
Battery-Operated Equipment
Hard-Disk Drives
Selector Guide
PART
MAX6034_EXR21-T
MAX6034_EXR25-T
MAX6034_EXR30-T
MAX6034_EXR33-T
MAX6034_EXR41-T
V
OUT
2.048
2.500
3.000
3.300
4.096
INPUT VOLTAGE (V)
2.5 to 5.5
(V
OUT
+ 200mV) to 5.5
(V
OUT
+ 200mV) to 5.5
(V
OUT
+ 200mV) to 5.5
(V
OUT
+ 200mV) to 5.5
Typical Operating Circuit
+SUPPLY INPUT (SEE
SELECTOR GUIDE)
IN
OUT
*
REFERENCE
OUT
Pin Configuration
TOP VIEW
IN
1
MAX6034
GND
OUT
2
*CAPACITOR IS OPTIONAL.
MAX6034
3
GND
SC70
1
________________________________________________________________
Maxim Integrated Products
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.
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
MAX6034
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
IN ...........................................................................-0.3V to +6.0V
OUT .............................................................-0.3V to (V
IN
+ 0.3V)
Output Short Circuit to GND or IN..............................Continuous
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SC70 (derate 2.9mW/°C above +70°C) .............235mW
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
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–MAX6034_21 (V
OUT
= 2.048V)
(V
IN
= 2.7V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation
Load Regulation
OUT Short-Circuit Current
Temperature Hysteresis
Long-Term Stability
DYNAMIC
Noise Voltage
Ripple Rejection
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current Per
Change in Input Voltage
V
IN
I
IN
∆I
IN
/∆V
IN
2.5V
≤
V
IN
≤
5.5V
Guaranteed by line-regulation test
2.5
85
4.1
5.5
115
16
V
µA
µA/V
e
OUT
∆V
OUT
/
∆V
IN
t
R
C
OUT
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
V
IN
= 2.7V
±100mV,
f = 120Hz
To V
OUT
= 0.1% of final value,
C
OUT
= 50pF
(Note 4)
0
45
46
80
85
1
µV
P-P
µV
RMS
dB
µs
µF
V
OUT
TCV
OUT
∆V
OUT
/
∆V
IN
∆V
OUT
/
∆I
OUT
I
SC
∆V
OUT
/
cycle
∆V
OUT
/
time
T
A
= +25°C
MAX6034A_21
MAX6034B_21
2.5V
≤
V
IN
≤
5.5V
Sourcing: 0
≤
I
OUT
≤
1mA
Sinking: 0
≤
I
OUT
≤
200µA
Short to GND
Short to IN
(Note 3)
1000hr at T
A
= +25°C
MAX6034A_21 (±0.2%)
MAX6034B_21 (±0.4%)
2.044
2.040
2.048
2.048
7
7
33
0.25
2.1
12
4
100
90
2.052
2.056
30
75
220
1.0
62
V
ppm/°C
µV/V
mV/mA
mA
ppm
ppm/
1000hr
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_25 (V
OUT
= 2.500V)
(V
IN
= 2.7V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation
Load Regulation
OUT Short-Circuit Current
Dropout Voltage
Temperature Hysteresis
Long-Term Stability
DYNAMIC
Noise Voltage
Ripple Rejection
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current Per
Change in Input Voltage
V
IN
I
IN
∆I
IN
/∆V
IN
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Guaranteed by line-regulation test
V
OUT
+ 0.2
85
4.2
5.5
115
16
V
µA
µA/V
e
OUT
∆V
OUT
/
∆V
IN
t
R
C
OUT
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
V
IN
= 2.7V
±100mV,
f = 120Hz
To V
OUT
= 0.1% of final value,
C
OUT
= 50pF
(Note 4)
0
55
64
80
140
1
µV
P-P
µV
RMS
dB
µs
µF
V
OUT
TCV
OUT
∆V
OUT
/
∆V
IN
∆V
OUT
/
∆I
OUT
I
SC
V
IN
-
V
OUT
∆V
OUT
/
cycle
∆V
OUT
/
time
T
A
= +25°C
MAX6034A_25
MAX6034B_25
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Sourcing: 0
≤
I
OUT
≤
1mA
Sinking: 0
≤
I
OUT
≤
200µA
Short to GND
Short to IN
I
OUT
= 1mA (Note 5)
(Note 3)
1000hr at T
A
= +25°C
MAX6034A_25 (±0.2%)
MAX6034B_25 (±0.4%)
2.495
2.490
2.500
2.500
7
7
40
0.22
2.5
12
4
70
100
90
200
2.505
2.510
30
75
250
1.0
8
V
ppm/°C
µV/V
mV/mA
mA
mV
ppm
ppm/
1000hr
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX6034
_______________________________________________________________________________________
3
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
MAX6034
ELECTRICAL CHARACTERISTICS–MAX6034_30 (V
OUT
= 3.000V)
(V
IN
= 5V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation
Load Regulation
OUT Short-Circuit Current
Dropout Voltage
Temperature Hysteresis
Long-Term Stability
DYNAMIC
Noise Voltage
Ripple Rejection
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current Per
Change in Input Voltage
V
IN
I
IN
∆I
IN
/∆V
IN
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Guaranteed by line-regulation test
V
OUT
+ 0.2
95
4.5
5.5
125
16
V
µA
µA/V
e
OUT
∆V
OUT
/
∆V
IN
t
R
C
OUT
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
V
IN
= 5V
±100mV,
f = 120Hz
To V
OUT
= 0.1% of final value,
C
OUT
= 50pF
(Note 4)
0
66
80
76
165
1
µV
P-P
µV
RMS
dB
µs
µF
V
OUT
TCV
OUT
∆V
OUT
/
∆V
IN
∆V
OUT
/
∆I
OUT
I
SC
V
IN
- V
OUT
∆V
OUT
/
cycle
∆V
OUT
/
time
T
A
= +25°C
MAX6034A_30
MAX6034B_30
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Sourcing: 0
≤
I
OUT
≤
1mA
Sinking: 0
≤
I
OUT
≤
200µA
Short to GND
Short to IN
I
OUT
= 1mA (Note 5)
(Note 3)
1000hr at T
A
= +25°C
MAX6034A_30 (±0.2%)
MAX6034B_30 (±0.4%)
2.994
2.988
3.000
3.000
7
7
43
0.30
2.6
13
4
70
100
90
200
mA
mV
ppm
ppm/
1000hr
3.006
3.012
30
75
280
1.3
8
mV/mA
V
ppm/°C
µV/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
4
_______________________________________________________________________________________
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_33 (V
OUT
= 3.300V)
(V
IN
= 5V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Voltage Temperature
Coefficient (Note 2)
Line Regulation
Load Regulation
OUT Short-Circuit Current
Dropout Voltage
Temperature Hysteresis
Long-Term Stability
DYNAMIC
Noise Voltage
Ripple Rejection
Turn-On Settling Time
Capacitive-Load Stability Range
INPUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current Per
Change in Input Voltage
V
IN
I
IN
∆I
IN
/∆V
IN
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Guaranteed by line-regulation test
V
OUT
+ 0.2
95
3.8
5.5
125
16
V
µA
µA/V
e
OUT
∆V
OUT
/
∆V
IN
t
R
C
OUT
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
V
IN
= 5V
±100mV,
f = 120Hz
To V
OUT
= 0.1% of final value,
C
OUT
= 50pF
(Note 4)
0
73
88
76
200
1
µV
P-P
µV
RMS
dB
µs
µF
V
OUT
TCV
OUT
∆V
OUT
/
∆V
IN
∆V
OUT
/
∆I
OUT
I
SC
V
IN
- V
OUT
∆V
OUT
/
cycle
∆V
OUT
/
time
T
A
= +25°C
MAX6034A_33
MAX6034B_33
(V
OUT
+ 200mV)
≤
V
IN
≤
5.5V
Sourcing: 0
≤
I
OUT
≤
1mA
Sinking: 0
≤
I
OUT
≤
200µA
Short to GND
Short to IN
I
OUT
= 1mA (Note 5)
(Note 3)
1000hr at T
A
= +25°C
MAX6034A_33 (±0.2%)
MAX6034B_33 (±0.4%)
3.293
3.287
3.300
3.300
7
7
45
0.3
3
13
4
70
100
90
200
3.307
3.313
30
75
300
1.3
8.6
V
ppm/°C
µV/V
mV/mA
mA
mV
ppm
ppm/
1000hr
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX6034
_______________________________________________________________________________________
5
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