MAX6035BAUR50-T [MAXIM]
High-Supply-Voltage, Precision Voltage Reference in SOT23; 高电源电压， SOT23封装精密基准电压源
| 型号： | MAX6035BAUR50-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | High-Supply-Voltage, Precision Voltage Reference in SOT23 |
| 文件： | 总14页 (文件大小：716K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2606; Rev 1; 5/03
High-Supply-Voltage, Precision
Voltage Reference in SOT23
General Description
Features
The MAX6035 is a high-voltage, precision micropower
voltage reference. This three-terminal device is available
with output voltage options of 2.5V, 3.0V, and 5.0V. It is an
excellent upgrade for industry-standard devices such as
the REF02 and REF43. The MAX6035 offers 14x lower
power than the REF02 and 5x lower power than the
REF43, as well as a reduced package size from an 8-pin
SO to a 3-pin SOT23. The MAX6035 features a proprietary
temperature coefficient curvature-correction circuit and
laser-trimmed, thin-film resistors that result in a very low
temperature coefficient of 25ppm/°C (max) and an initial
accuracy of 0.2ꢀ (max).
ꢀ Wide Supply Voltage Range: Up to 33V
ꢀ 25ppm/°C (max) Temperature Coefficient
(-40°C to +85°C)
ꢀ
0ꢀ2ꢁ (max) ꢂnitial ꢃccuracy
ꢀ Small 3-Pin SOT23 Package
ꢀ 95µꢃ (max) Quiescent Supply Current
ꢀ 10mꢃ Source Current, 2mꢃ Sink Current
ꢀ No Output Capacitor Required
ꢀ Stable with Capacitive Loads up to 5µF
ꢀ Output Voltages: 2ꢀ5V, 3ꢀ0V, 5ꢀ0V
The MAX6035 typically draws only 73µA of supply cur-
rent and can source 10mA or sink 2mA of load current.
Unlike conventional shunt-mode (two-terminal) refer-
ences that waste supply current and require an external
resistor, this device offers a supply current that is virtu-
ally independent of the supply voltage and does not
require an external resistor. Additionally, this internally
compensated device does not require an external com-
pensation capacitor, but is also stable with capacitive
loads up to 5µF. Eliminating the external compensation
capacitor saves valuable board area in space-critical
applications. The supply independent, ultra-low supply
current makes this device ideal for battery-operated,
high-performance systems.
Ordering Information
PIN-
TOP
PART
TEMP RANGE
PACKAGE MARK
MAX6035AAUR25-T -40°C to +125°C 3 SOT23-3 FZMW
MAX6035BAUR25-T -40°C to +125°C 3 SOT23-3 FZMX
MAX6035AAUR30-T -40°C to +125°C 3 SOT23-3 FZMY
MAX6035BAUR30-T -40°C to +125°C 3 SOT23-3 FZMZ
MAX6035AAUR50-T -40°C to +125°C 3 SOT23-3 FZNA
MAX6035BAUR50-T -40°C to +125°C 3 SOT23-3 FZNB
Selector Guide
The MAX6035 is available in a 3-pin SOT23 package
and is specified for operation from -40°C to +125°C.
MAXIMUM
TEMPCO
(ppm/°C)
MAXIMUM
INITIAL
ACCURACY
(%)
OUTPUT
VOLTAGE
(V)
Applications
Digital Multimeters
Portable Data-Acquisition
Systems
PART
(-40°C to +85°C)
4mA to 20mA Industrial
Control Loops
Li+ Battery Chargers
MAX6035AAUR25
MAX6035BAUR25
MAX6035AAUR30
MAX6035BAUR30
MAX6035AAUR50
MAX6035BAUR50
25
65
25
65
25
65
0.20
0.50
0.20
0.50
0.20
0.50
2.5
2.5
3.0
3.0
5.0
5.0
12-Bit A/D and D/A
Converters
Low-Power Test
Equipment
Typical Operating Circuit
+SUPPLY INPUT (SEE SELECTOR GUIDE)
Pin Configuration
IN
TOP VIEW
REFERENCE
OUT
OUT
IN
1
2
0.1µF*
MAX6035
3
GND
MAX6035
GND
OUT
*CAPACITOR IS OPTIONAL.
SOT23
________________________________________________________________ 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.
High-Supply-Voltage, Precision
Voltage Reference in SOT23
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
Operating Temperature Range .........................-40°C to +125°C
IN............................................................................-0.3V to +36V
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT .............................................................-0.3V to (V + 0.3V)
IN
OUT Short-Circuit Duration to GND or IN (Note 1).....Continuous
Current into Any Pin.......................................................... 20mA
Continuous Power Dissipation
3-Pin SOT23 (derate 4.0mW/°C above +70°C)............320mW
Note 1: Continuous power dissipation should also be observed.
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—MAX6035_AUR25 (2.5V)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MAX6035A (0.2%)
MIN
TYP
MAX
UNITS
2.4950 2.5000 2.5050
V
T
A
T
A
T
A
T
A
= +25°C
V
OUT
MAX6035B (0.5%)
MAX6035A
MAX6035B
MAX6035A
MAX6035B
MAX6035A
MAX6035B
2.4875 2.5000 2.5125
20
50
25
65
30
75
= 0°C to +70°C
= -40°C to +85°C
= -40°C to +125°C
Output Voltage
Temperature Coefficient
(Note 3)
TCV
ppm/°C
OUT
T
= +25°C
4
15
20
A
A
Line Regulation (Note 4)
Load Regulation (Note 4)
∆V
/∆V
(V
+ 2V) ≤ V ≤ 33V
µV/V
OUT
IN
OUT
IN
T
= -40°C to +125°C
Sourcing:
0 ≤ I ≤ 10mA
25
45
70
180
85
OUT
T
A
= +25°C
Sinking:
-2mA ≤ I
≤ 0
OUT
∆V
∆I
/
OUT
OUT
µV/mA
Sourcing:
0 ≤ I ≤ 10mA
OUT
T
A
= -40°C to +125°C
Sinking:
-2mA ≤ I
225
≤ 0
OUT
Short to GND
Short to IN
27
-4
OUT Short-Circuit Current
Dropout Voltage (Note 7)
I
mA
V
SC
I
I
= 10µA
= 10mA
1.9
OUT
OUT
V
- V
OUT
IN
2.25
2
_______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
ELECTRICAL CHARACTERISTICS—MAX6035_AUR25 (2.5V) (continued)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
SYMBOL
/cycle
CONDITIONS
MIN
TYP
MAX
UNITS
Thermal Hysteresis (Note 5) ∆V
135
ppm
OUT
ppm/
1000hr
Long-Term Stability
∆V
/time 1000hr at +25°C
110
OUT
DYNAMIC CHARACTERISTICS
Output Noise Voltage
f = 0.1Hz to 10Hz
21
20
µV
P-P
e
n
f = 10Hz to 1kHz
= 5V 100mV, f = 120Hz
µV
RMS
Ripple Rejection
∆V
/∆V
V
IN
86
dB
OUT
IN
C
C
= 50pF
= 1µF
35
OUT
OUT
To V
of final value
= 0.1%
OUT
Turn-On Settling Time
t
R
µs
240
Capacitive-Load Stability
(Note 6)
C
0
5
µF
OUT
INPUT CHARACTERISTICS
Supply Voltage Range
V
Inferred from line regulation and dropout voltage
4.4
33
95
V
IN
Quiescent Supply Current
Change in Supply Current
I
73
µA
IN
∆I /∆V
IN
4.4V ≤ V ≤ 33V
0.4
0.7
µA/V
IN
IN
ELECTRICAL CHARACTERISTICS—MAX6035_AUR30 (3.0V)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MAX6035A (0.2%)
MIN
TYP
MAX
UNITS
2.9940 3.0000 3.0060
V
T
A
T
A
T
A
T
A
= +25°C
V
OUT
MAX6035B (0.5%)
MAX6035A
MAX6035B
MAX6035A
MAX6035B
MAX6035A
MAX6035B
2.9850 3.0000 3.0150
20
50
25
65
30
75
= 0°C to +70°C
= -40°C to +85°C
= -40°C to +125°C
Output Voltage
Temperature Coefficient
(Note 3)
TCV
ppm/°C
OUT
T
T
= +25°C
4.5
15
24
24
A
A
(V
(V
+ 1.75V) ≤ V ≤ 33V
IN
OUT
∆V
∆V
/
OUT
Line Regulation (Note 4)
Load Regulation (Note 4)
µV/V
= 0°C to +125°C
IN
+ 2V) ≤ V ≤ 33V
T = -40°C to +125°C
A
OUT
IN
Sourcing:
0 ≤ I
30
54
81
170
96
≤ 10mA
OUT
T
= +25°C
A
A
Sinking:
-2mA ≤ I
≤ 0mA
OUT
∆V
∆I
/
OUT
µV/mA
OUT
Sourcing:
0 ≤ I ≤ 10mA
OUT
T
= -40°C to +125°C
Sinking:
-2mA ≤ I
230
≤ 0mA
OUT
_______________________________________________________________________________________
3
High-Supply-Voltage, Precision
Voltage Reference in SOT23
ELECTRICAL CHARACTERISTICS—MAX6035_AUR30 (3.0V) (continued)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
27
MAX
UNITS
Short to GND
Short to IN
OUT Short-Circuit Current
I
mA
SC
-4
T
= 0°C to +125°C
I
I
I
= 10µA
= 10µA
= 10mA
1.75
1.9
A
OUT
OUT
OUT
Dropout Voltage (Note 7)
V
- V
OUT
V
IN
T
A
= -40°C to +125°C
2.25
Thermal Hysteresis (Note 5) ∆V
/cycle
135
120
OUT
ppm
ppm/
1000hr
Long-Term Stability
∆V
/time 1000hr at +25°C
OUT
DYNAMIC CHARACTERISTICS
Output Noise Voltage
f = 0.1Hz to 10Hz
25
25
µV
P-P
e
n
f = 10Hz to 1kHz
µV
RMS
∆V
∆V
/
OUT
Ripple Rejection
V
V
= 5V 100mV, f = 120Hz
80
dB
µs
µF
IN
IN
C
C
= 50pF
= 1µF
40
OUT
OUT
Turn-On Settling Time
t
= 0.1% of final value
OUT
R
250
Capacitive-Load Stability
(Note 6)
C
0
5
OUT
INPUT CHARACTERISTICS
T
= 0°C to +125°C, inferred from line regulation
A
4.75
4.9
33
33
and dropout voltage
Supply Voltage Range
V
V
IN
T
A
= -40°C to +125°C, inferred from line
regulation and dropout voltage
Quiescent Current Supply
I
73
95
µA
IN
Change in Supply Current
∆I /∆V
4.9V ≤ V ≤ 33V
0.4
0.7
µA/V
IN
IN
IN
ELECTRICAL CHARACTERISTICS—MAX6035_AUR50 (5.0V)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
Output Voltage
SYMBOL
CONDITIONS
MAX6035A (0.2%)
MIN
TYP
MAX
UNITS
4.9900 5.0000 5.0100
V
T
A
T
A
T
A
T
A
= +25°C
V
OUT
MAX6035B (0.5%)
MAX6035A
MAX6035B
MAX6035A
MAX6035B
MAX6035A
MAX6035B
4.9750 5.0000 5.0250
20
50
25
65
30
75
= 0°C to +70°C
= -40°C to +85°C
= -40°C to +125°C
Output Voltage
Temperature Coefficient
(Note 3)
TCV
ppm/°C
OUT
T = +25°C
7.5
8
25
40
A
Line Regulation (Note 4)
∆V
/∆V
(V
OUT
+ 2V) ≤ V ≤ 33V
OUT
µV/V
OUT
IN
T = -40°C to +125°C
A
4
_______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
ELECTRICAL CHARACTERISTICS—MAX6035_AUR50 (5.0V) (continued)
(V = 5V, I
IN
= 0, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
OUT
A
MIN
PARAMETER
SYMBOL
CONDITIONS
Sourcing:
0 ≤ I ≤ 10mA
MIN
TYP
MAX
UNITS
50
135
OUT
T
= +25°C
A
Sinking:
90
215
160
300
-2mA ≤ I
≤ 0mA
OUT
∆V
OUT
∆I
OUT
/
Load Regulation (Note 4)
µV/mA
Sourcing:
0 ≤ I ≤ 10mA
OUT
T
A
= -40°C to +125°C
Sinking:
-2mA ≤ I
≤ 0mA
OUT
Shorted to GND
Shorted to IN
27
-4
OUT Short-Circuit Current
Dropout Voltage (Note 7)
I
mA
SC
I
= 10µA
= 10mA
1.9
OUT
OUT
V
- V
V
IN
OUT
I
2.25
Thermal Hysteresis (Note 5) ∆V
/cycle
135
160
ppm
OUT
ppm/
1000hr
Long-Term Stability
∆V
/time 1000hr at +25°C
OUT
DYNAMIC CHARACTERISTICS
Output Noise Voltage
f = 0.1Hz to 10Hz
68
48
µV
P-P
e
n
f = 10Hz to 1kHz
= 15V 100mV, f = 120Hz
µV
RMS
Ripple Rejection
∆V
/∆V
V
IN
72
dB
OUT
IN
C
C
= 50pF
= 1µF
140
300
OUT
OUT
To V
value
= 0.1% of final
OUT
Turn-On Settling Time
t
R
µs
Capacitive-Load Stability
(Note 6)
C
0
5
µF
V
OUT
INPUT CHARACTERISTICS
Supply Voltage Range
V
Inferred by line regulation and dropout voltage
6.9
33
IN
Quiescent Current Supply
Change in Supply Current
I
80
100
0.7
µA
IN
∆I /∆V
IN
6.9V ≤ V ≤ 33V
0.4
µA/V
IN
IN
Note 2: All devices are 100% production tested at T = +25°C and are guaranteed by design for T = T
to T
, as specified.
MAX
A
A
MIN
Note 3: Temperature Coefficient is measured by the “box” method, i.e., the maximum ∆V
is divided by the maximum ∆T.
OUT
Note 4: Line and load regulation are measured with pulses and do not include output voltage fluctuation due to die-temperature
changes.
Note 5: Thermal Hysteresis is defined as the change in the output voltage at T = +25°C before and after cycling the device from
A
T
MAX
to T
.
MIN
Note 6: Guaranteed by design.
Note 7: Although the source current is guaranteed to be 10mA, exercise caution to ensure that the package’s absolute power dissi-
pation rating is not exceeded.
_______________________________________________________________________________________
5
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035AAUR50
OUTPUT VOLTAGE TEMPERATURE DRIFT
5.005
MAX6035AAUR25
OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6035AAUR30
OUTPUT VOLTAGE TEMPERATURE DRIFT
2.5035
2.5030
2.5025
2.5020
2.5015
2.5010
2.5005
2.5000
2.4995
2.4990
3.003
THREE TYPICAL PARTS
THREE TYPICAL PARTS
THREE TYPICAL PARTS
5.004
3.001
2.999
5.003
5.002
5.001
5.000
4.999
4.998
4.997
2.997
2.995
2.993
-15
10
60
85
110
-40
35
-15
10
60
85
110
85
110
-40
35
-40 -15
10
35
60
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX6035
LINE REGULATION (V
MAX6035
LINE REGULATION (V
MAX6035
= 5V)
= 3V)
LINE REGULATION (V
= 2.5V)
OUT
OUT
OUT
4.9995
4.9990
4.9985
4.9980
4.9975
4.9970
3.0005
3.0000
2.9995
2.9990
2.9985
2.9980
2.9975
2.9970
2.9965
2.9960
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
2.4975
2.4970
T
= +125°C
T
A
= +125°C
A
T
= +125°C
= +85°C
A
T
A
= +85°C
= +25°C
T
A
= +85°C
= +25°C
= -40°C
T
A
T
A
T
A
T
= +25°C
A
T
A
T
A
= -40°C
T
= -40°C
A
6
10
14
18
22
26
30
34
4
10
16
22
28
34
4
10
16
22
28
34
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
MAX6035
LOAD REGULATION (V
MAX6035
LOAD REGULATION (V
MAX6035
LOAD REGULATION (V
= 5V)
OUT
= 3V)
= 2.5V)
OUT
OUT
5.001
5.000
4.999
4.998
4.997
4.996
4.995
4.994
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
2.4975
2.4970
2.4965
3.0005
3.0000
2.9995
2.9990
2.9985
2.9980
2.9975
2.9970
2.9965
2.9960
2.9955
T
= +125°C
A
T
A
= +125°C
T
= +85°C
A
T
A
= +125°C
A
T
= +85°C
A
T
= +85°C
T
A
= +25°C
T = +25°C
A
T
A
= +25°C
T
= -40°C
A
T
A
= -40°C
T
A
= -40°C
-2
0
2
4
6
8
10
-2
0
2
4
6
8
10
-2
0
2
4
6
8
10
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
6
_______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035
POWER-SUPPLY REJECTION RATIO
MAX6035
POWER-SUPPLY REJECTION RATIO
MAX6035
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (V
= 2.5V)
OUT
vs. FREQUENCY (V
= 5V)
vs. FREQUENCY (V
= 3V)
OUT
OUT
0
-20
-40
-60
-80
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-120
-100
-120
-100
-120
0.001
0.1
10
1000
0.001
0.1
10
1000
0.001
0.1
10
1000
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
MAX6035
SUPPLY CURRENT
vs. INPUT VOLTAGE (V
MAX6035
SUPPLY CURRENT
vs. INPUT VOLTAGE (V
MAX6035
SUPPLY CURRENT
vs. INPUT VOLTAGE (V
= 5V)
= 3V)
= 2.5V)
OUT
OUT
OUT
95
95
95
90
85
80
75
70
65
T = -40°C
A
90
85
80
75
70
90
85
80
75
70
T
= -40°C
A
T
A
= +25°C
T
= -40°C
A
T
A
= +25°C
T
A
= +25°C
T
A
= +125°C
T
A
= +125°C
T
A
= +125°C
4
10
16
22
28
34
6
12
18
24
30
4
10
16
22
28
34
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
MAX6035
OUTPUT IMPEDANCE
MAX6035
MAX6035
OUTPUT IMPEDANCE
OUTPUT IMPEDANCE
vs. FREQUENCY (V = 2.5V)
vs. FREQUENCY (V
= 5V)
vs. FREQUENCY (V
= 3V)
OUT
OUT
OUT
300
400
300
200
100
0
400
250
200
150
100
50
300
200
100
0
0
0.1
1
10
100
0.01
1000
0.1
1
10
100
0.01
1000
0.001
0.1
10
1000
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
_______________________________________________________________________________________
7
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035
0.1Hz to 10Hz OUTPUT NOISE
MAX6035
0.1Hz to 10Hz OUTPUT NOISE
MAX6035
0.1Hz to 10Hz OUTPUT NOISE
(V
= 5V)
(V = 3V)
OUT
OUT
(V
= 2.5V)
OUT
MAX6035 toc21
MAX6035 toc20
MAX6035 toc19
20µV/div
10µV/div
10µV/div
1s/div
1s/div
1s/div
MAX6035
10Hz to 1kHz OUTPUT NOISE
(V = 3V)
MAX6035
10Hz to 1kHz OUTPUT NOISE
(V = 2.5V)
MAX6035
10Hz to 1kHz OUTPUT NOISE
(V
= 5V)
OUT
OUT
OUT
MAX6035 toc22
MAX6035 toc23
MAX6035 toc24
50µV/div
50µV/div
100µV/div
100ms/div
100ms/div
100ms/div
MAX6035
TURN-ON TRANSIENT (V
MAX6035
TURN-ON TRANSIENT (V
MAX6035
TURN-ON TRANSIENT (V
= 2.5V)
= 3V)
OUT
MAX6035 toc26
= 5V)
OUT
OUT
MAX6035 toc25
MAX6035 toc27
C = 50pF
L
C = 50pF
L
C = 50pF
L
V
V
IN
V
IN
10V/div
IN
5V/div
0V
5V/div
0V
V
V
V
OUT
1V/div
0V
OUT
OUT
2V/div
1V/div
0V
10µs/div
10µs/div
40µs/div
8
_______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035
MAX6035
LOAD TRANSIENT (V
MAX6035
LOAD TRANSIENT (V
LOAD TRANSIENT (V
= 2.5V)
= 3V)
= 5V)
OUT
MAX6035 toc30
OUT
OUT
MAX6035 toc28
MAX6035 toc29
V
OUT
AC-COUPLED
100mV/div
V
V
OUT
AC-COUPLED
100mV/div
OUT
AC-COUPLED
200mV/div
V
L
V
V
L
10V/div
L
10V/div
10V/div
40µs/div
20µs/div
20µs/div
(I
OUT
=
250µA, C = 0, R = 20kΩ) (Figure 1)
(I
OUT
=
250µA, C = 0, R = 12kΩ) (Figure 1)
L
L
(I
OUT
= 250µA, C = 0, R = 10kΩ) (Figure 1)
L L
L
L
MAX6035
LOAD TRANSIENT (V
MAX6035
LOAD TRANSIENT (V
MAX6035
= 3V)
MAX6035 toc32
= 5V)
MAX6035 toc33
LOAD TRANSIENT (V
= 2.5V)
MAX6035 toc31
OUT
OUT
OUT
V
V
V
OUT
AC-COUPLED
20mV/div
OUT
AC-COUPLED
OUT
AC-COUPLED
20mV/div
20mV/div
V
V
V
L
10V/div
L
L
5V/div
10V/div
100µs/div
100µs/div
100µs/div
(I
OUT
= 250µA, C = 1µF, R = 10kΩ) (Figure 1)
L L
(I
OUT
= 250µA, C = 1µF, R = 20kΩ) (Figure 1)
L L
(I
OUT
= 250µA, C = 1µF, R = 12kΩ) (Figure 1)
L L
MAX6035
LOAD TRANSIENT (V
MAX6035
MAX6035
LOAD TRANSIENT (V
= 3V)
MAX6035 toc35
LOAD TRANSIENT (V
= 2.5V)
= 5V)
OUT
MAX6035 toc36
OUT
OUT
MAX6035 toc34
V
V
V
OUT
AC-COUPLED
500mV/div
OUT
AC-COUPLED
OUT
AC-COUPLED
500mV/div
500mV/div
V
V
V
L
10V/div
L
L
5V/div
5V/div
10µs/div
40µs/div
20µs/div
(I
OUT
=
2mA, C = 0, R = 1.25kΩ) (Figure 1)
(I
= 2mA, C = 0, R = 1.5kΩ) (Figure 1)
OUT L L
(I
OUT
= 2mA, C = 0, R = 2.5kΩ) (Figure 1)
L
L
L L
_______________________________________________________________________________________
9
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035
LOAD TRANSIENT (V
MAX6035
LOAD TRANSIENT (V
MAX6035
= 3V)
= 5V)
OUT
MAX6035 toc39
LOAD TRANSIENT (V
= 2.5V)
MAX6035 toc37
OUT
OUT
MAX6035 toc38
V
V
OUT
AC-COUPLED
20mV/div
V
OUT
AC-COUPLED
OUT
AC-COUPLED
100mV/div
100mV/div
V
L
10V/div
V
L
10V/div
V
L
5V/div
100µs/div
200µs/div
40µs/div
(I
OUT
=
2mA, C = 1µF, R = 1.5kΩ) (Figure 1)
(I
OUT
=
2mA, C = 1µF, R = 1.25kΩ) (Figure 1)
L
L
L
L
(I
OUT
=
2mA, C = 1µF, R = 2.5kΩ) (Figure 1)
L
L
MAX6035
LOAD TRANSIENT (V
MAX6035
MAX6035
LOAD TRANSIENT (V
= 5V)
MAX6035 toc42
LOAD TRANSIENT (V
= 2.5V)
MAX6035 toc40
= 3V)
OUT
OUT
OUT
MAX6035 toc41
V
V
OUT
AC-COUPLED
20mV/div
OUT
AC-COUPLED
V
OUT
AC-COUPLED
500mV/div
500mV/div
V
V
L
5V/div
L
V
L
5V/div
5V/div
20µs/div
200µs/div
20µs/div
(I
OUT
= 0 to 10mA, C = 0, R = 250Ω) (Figure 2)
(I
= 0 to 10mA, C = 0, R = 500Ω) (Figure 2)
OUT L L
(I
OUT
= 0 to 10mA, C = 0, R = 300Ω) (Figure 2)
L
L
L L
10 ______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(V = 5V for MAX6035AAUR25/MAX6035AAUR30, V = 15V for MAX6035AAUR50, I
= 0, T = +25°C, unless otherwise noted.)
IN
IN
OUT
A
MAX6035
MAX6035
LOAD TRANSIENT (V
MAX6035
LOAD TRANSIENT (V
LOAD TRANSIENT (V
= 2.5V)
= 3V)
= 5V)
OUT
MAX6035 toc45
OUT
OUT
MAX6035 toc43
MAX6035 toc44
V
OUT
AC-COUPLED
100mV/div
V
V
OUT
AC-COUPLED
100mV/div
OUT
AC-COUPLED
100mV/div
V
L
5V/div
V
V
L
5V/div
L
5V/div
100µs/div
L L
100µs/div
100µs/div
(I
OUT
= 0 to 10mA, C = 1µF, R = 250Ω) (Figure 2)
(I
OUT
= 0 to 10mA, C = 1µF, R = 300Ω) (Figure 2)
(I
OUT
= 0 to 10mA, C = 1µF, R = 500Ω) (Figure 2)
L
L
L
L
MAX6035
MAX6035
LINE TRANSIENT (V
MAX6035
LINE TRANSIENT (V
LINE TRANSIENT (V
= 2.5V)
= 3V)
= 5V)
OUT
MAX6035 toc48
OUT
OUT
MAX6035 toc46
MAX6035 toc47
C = 0
L
C = 0
L
C = 0
L
V
V
IN
IN
500mV/div
500mV/div
V
IN
500mV/div
V
V
OUT
AC-COUPLED
OUT
AC-COUPLED
V
OUT
AC-COUPLED
100mV/div
100mV/div
100mV/div
4µs/div
10µs/div
4µs/div
+V
IN
+V
IN
V
OUT
MAX6035
MAX6035
V
OUT
V
OUT
V
OUT
C
L
C
L
R
L
R
L
V
OUT
2V
OUT
V
L
V
L
0V
0V
Figure 1. Load-Transient Test Circuit
Figure 2. Load-Transient Test Circuit
______________________________________________________________________________________ 11
High-Supply-Voltage, Precision
Voltage Reference in SOT23
rent, even if the load current is not present at the time.
Pin Description
In the MAX6035 family, the load current is drawn from
the input voltage only when required, so supply current
is not wasted and efficiency is maximized at all input
voltages. This improved efficiency reduces power dissi-
pation and extends battery life.
PIN
1
NAME
IN
FUNCTION
Input Voltage
2
OUT
GND
Reference Output
Ground
3
Thermal Hysteresis
Thermal hysteresis is the change of output voltage at
A
its entire operating temperature range. The typical tem-
perature hysteresis value is 135ppm.
T
= +25°C before and after the device is cycled over
Applications Information
Input Bypassing
For the best line-transient performance, decouple the
input with a 0.1µF ceramic capacitor as shown in the
Typical Operating Circuit. Locate the capacitor as
close to the device as possible. Where transient perfor-
mance is less important, no capacitor is necessary.
Turn-On Time
These devices typically turn on and settle to within
0.1% of their final value in 240µs. Increased output
capacitance also increases turn-on time.
Temperature Coefficient vs.
Operating Temperature Range
Output/Load Capacitance
Devices in the MAX6035 family do not require any out-
put capacitance for frequency stability. In applications
where the load or the supply can experience step
changes, an output capacitor of at least 0.1µF reduces
the amount of overshoot (undershoot) and improves the
circuit’s transient response. Many applications do not
require an external capacitor, and the MAX6035 family
can offer a significant advantage in these applications
when board space is critical.
for a 1 LSB Maximum Error
In a data converter application, the reference voltage of
the converter must stay within a certain limit to keep the
error in the data converter smaller than the resolution
limit through the operating temperature range. Figure 3
shows the maximum allowable reference-voltage tem-
perature coefficient to keep the conversion error to less
than 1LSB, as a function of the operating temperature
range (T
- T ) with the converter resolution as a
MIN
MAX
Supply Current
The quiescent supply current of the MAX6035 series-
mode family is typically 73µA and is virtually indepen-
dent of the supply voltage, with only a 0.7µA/V (max)
variation with supply voltage. In contrast, the quiescent
current of a shunt-mode reference is a function of the
input voltage due to a series resistor connected to the
power supply. Additionally, shunt-mode references
have to be biased at the maximum expected load cur-
parameter. The graph assumes the reference-voltage
temperature coefficient as the only parameter affecting
accuracy.
In reality, the absolute static accuracy of a data con-
verter is dependent on the combination of many para-
meters such as integral nonlinearity, differential
nonlinearity, offset error, gain error, as well as voltage
reference changes.
12 ______________________________________________________________________________________
High-Supply-Voltage, Precision
Voltage Reference in SOT23
10,000
1000
100
8 BIT
TEMPERATURE
COEFFICIENT
(ppm/°C)
10
1
10 BIT
12 BIT
14 BIT
16 BIT
0.1
18 BIT
20 BIT
100
0.01
1
10
OPERATING TEMPERATURE RANGE (T - T ) (°C)
MAX MIN
Figure 3. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error
Chip Information
TRANSISTOR COUNT: 84
PROCESS: BiCMOS
______________________________________________________________________________________ 13
High-Supply-Voltage, Precision
Voltage Reference in SOT23
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.
PACKAGE OUTLINE, 3L SOT-23
1
21-0051
F
1
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.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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