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MAX6043
Precision High-Voltage Reference in SOT23
General Description
The MAX6043 precision voltage reference provides
accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V
reference voltages from up to +40V input voltages. The
MAX6043 features a proprietary temperature coefficient
curvature-correction circuit and laser-trimmed thin-film
resistors that result in a very low temperature coefficient
of 15ppm/°C (max) and excellent initial accuracy of 0.05%
(max). Low temperature drift and low noise make the
MAX6043 ideal for use with high-resolution A/D or D/A
converters.
The MAX6043 draws 320μA of supply current and sources 10mA or sinks 0.6mA of load current. The MAX6043
uses bandgap technology for low-noise performance
and excellent accuracy. The MAX6043 does not require
an output bypass capacitor for stability, and is stable
with capacitive loads up to 100μF. Eliminating the output
bypass capacitor saves valuable board area in spacecritical applications. The supply-independent, low supply
current makes the MAX6043 ideal for battery-operated,
high-performance systems.
Features
● +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
● Excellent Temperature Stability: 15ppm/°C (max)
● Tight Initial Accuracy: 0.05% (max)
● Tiny SOT23 Package
● Wide +4.5V to +40V Supply Voltage Range
● Low Noise: 4μVP-P (typ at 2.5V Output)
● Short-Circuit Protected
● Wide Operating Temperature Range
-40°C to +125°C
● Stable with Capacitive Loads from 0 to 100μF
● No External Capacitors Required for Stability
Pin Configuration
TOP VIEW
I.C.* 1
The MAX6043 is available in a 6-pin SOT23 package
and operates over the automotive (-40°C to +125°C)
temperature range.
GND 2
Applications
●
●
●
●
●
MAX6043
I.C.* 3
Analog-to-Digital Converters
Digital-to-Analog Converters
Digital Voltmeters
Voltage Regulators
Threshold Detectors
6
OUTS
5
OUTF
4
IN
SOT23
*INTERNALLY CONNECTED. DO NOT CONNECT.
Ordering Information
OUTPUT VOLTAGE
(V)
TEMPCO
(PPM/°C)
INITIAL ACCURACY
(%)
TOP MARK
MAX6043BAUT25-T
2.500
20
0.10
ABDQ
MAX6043CAUT25-T
2.500
65
0.50
ABDR
MAX6043BAUT33-T
3.300
20
0.10
ABDS
MAX6043BAUT41-T
4.096
20
0.10
ABDU
PART
#Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
19-3036; Rev 7; 11/21
© 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.
One Analog Way, Wilmington, MA 01887 U.S.A.
|
Tel: 781.329.4700
|
© 2021 Analog Devices, Inc. All rights reserved.
MAX6043
Precision High-Voltage Reference in SOT23
Absolute Maximum Ratings
IN to GND...............................................................-0.3V to +42V
OUTF, OUTS to GND..................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 7.40mW/°C above +70°C)....595.20mW
OUT_ Short-Circuit Duration.................................................... 5s
Operating Temperature Range.......................... -40°C to +125°C
Storage Temperature Range............................. -65°C to +150°C
Junction Temperature Range............................ -65°C to +150°C
Maximum Junction Temperature......................................+150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)
RoHS-compliant package.............................................+245°C
Packages containing lead(Pb)......................................+240°C
Package Information
6 SOT23
PACKAGE CODE
U6F+6
Outline Number
21-0058
Land Pattern Number
90-0175
Thermal Resistance, Single-Layer Board
Junction to Ambient (θJA)
185.50°C/W
Junction to Case (θJC)
75°C/W
Thermal Resistance, Four-Layer Board
Junction to Ambient (θJA)
134.40°C/W
Junction to Case (θJC)
39°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
www.analog.com
Analog Devices │ 2
MAX6043
Precision High-Voltage Reference in SOT23
Electrical Characteristics—VOUT = +2.5V
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX6043B (0.1%)
2.4975
2.5000
2.5025
MAX6043C (0.5%)
2.4876
2.5000
2.5125
MAX6043B_25
5
25
MAX6043C_25
10
65
TA = +25°C
1
6
1.5
10
8
70
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
TA = -40°C to +125°C
Line Regulation (Note 4)
4.5V < VIN < 40V
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
Sourcing,
0 < IOUT < 10mA
TA = +25°C
Sinking,
-0.6mA < IOUT < 0mA
TA = +25°C
TA = -40°C to +125°C
70
70
TA = -40°C to +125°C
900
V
ppm/°C
ppm/V
ppm/mA
900
Output shorted to GND
60
Output shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
Δt = 1000hr
150
ppm
0.1Hz to 10Hz
4
µVP-P
10Hz to 1kHz
7
µVRMS
150
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
To VOUT = 0.05% of final value, COUT = 50pF
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
www.analog.com
4.5
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
370
650
V
µA
Analog Devices │ 3
MAX6043
Precision High-Voltage Reference in SOT23
Electrical Characteristics—VOUT = +3.3V
(VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX6043B (0.1%)
3.2967
3.3000
3.3033
MAX6043C (0.5%)
3.2836
3.3000
3.3165
MAX6043B_33
5
25
MAX6043C_33
10
65
TA = +25°C
1
6
TA = -40°C to +125°C
1.5
10
Sourcing,
0 ≤ IOUT ≤ 10mA
TA = +25°C
23
70
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
TA = -40°C to +125°C
Line Regulation (Note 4)
5.3V ≤ VIN ≤ 40V
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
70
100
TA = -40°C to +125°C
900
V
ppm/°C
ppm/V
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
Δt = 1000hr
150
ppm
0.1Hz to 10Hz
5.3
µVP-P
10Hz to 1kHz
9.5
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
180
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
www.analog.com
5.3
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
V
µA
Analog Devices │ 4
MAX6043
Precision High-Voltage Reference in SOT23
Electrical Characteristics—VOUT = +4.096V
(VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX6043B (0.1%)
4.0919
4.0960
4.1001
MAX6043C (0.5%)
4.0755
4.0960
4.1165
MAX6043B_41
5
25
MAX6043C_41
10
65
TA = +25°C
1
6
TA = -40°C to +125°C
1.5
10
Sourcing,
0 ≤ IOUT ≤ 10mA
TA = +25°C
19
70
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
TA = -40°C to +125°C
Line Regulation (Note 4)
6.1V ≤ VIN ≤ 40V
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
70
100
TA = -40°C to +125°C
900
V
ppm/°C
ppm/V
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
Δt = 1000hr
150
ppm
0.1Hz to 10Hz
6.6
µVP-P
10Hz to 1kHz
12
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
200
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
www.analog.com
6.1
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
V
µA
Analog Devices │ 5
MAX6043
Precision High-Voltage Reference in SOT23
Electrical Characteristics—VOUT = +5.0V
(VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX6043B (0.1%)
4.9950
5.0000
5.0050
MAX6043C (0.5%)
4.9751
5.0000
5.0250
MAX6043B_50
5
25
MAX6043C_50
10
65
TA = +25°C
1
6
TA = -40°C to +125°C
1.5
10
Sourcing,
0 ≤ IOUT ≤ 10mA
TA = +25°C
32
70
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
TA = -40°C to +125°C
Line Regulation (Note 4)
7V ≤ VIN ≤ 40V
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
70
130
TA = -40°C to +125°C
900
V
ppm/°C
ppm/V
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
Δt = 1000hr
150
ppm
0.1Hz to 10Hz
9.5
µVP-P
10Hz to 1kHz
15
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
230
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
www.analog.com
7.0
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
V
µA
Analog Devices │ 6
MAX6043
Precision High-Voltage Reference in SOT23
Electrical Characteristics—VOUT = +10.0V
(VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX6043B (0.1%)
9.9900
10.0000
10.0100
MAX6043C (0.5%)
9.9500
10.0000
10.0500
MAX6043B_10
5
25
MAX6043C_10
10
65
TA = +25°C
1
6
TA = -40°C to +125°C
1.5
10
Sourcing,
0 ≤ IOUT ≤ 10mA
TA = +25°C
16
70
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
TA = -40°C to +125°C
Line Regulation (Note 4)
12V ≤ VIN ≤ 40V
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
70
170
TA = -40°C to +125°C
900
V
ppm/°C
ppm/V
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
Δt = 1000hr
150
ppm
0.1Hz to 10Hz
19
µVP-P
10Hz to 1kHz
30
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
390
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
12.0
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
390
650
V
µA
Note 1: All devices are 100% production tested at TA = +25°C and guaranteed by design over TA = TMIN to TMAX as specified.
Note 2: Temperature coefficient is defined as ΔVOUT divided by the temperature range.
Note 3: Thermal hysteresis defined as the change in output voltage at TA = +25°C before and after cycling the device from TMAX to TMIN.
Note 4: Line and load regulation do not include the effect of self heating.
www.analog.com
Analog Devices │ 7
MAX6043
Precision High-Voltage Reference in SOT23
Typical Operating Characteristics
(VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C,
unless otherwise noted.)
2.5005
2.5000
2.4995
2.4990
2.4985
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
MAX6043 toc04
25
TA = +25°C
20
-0.5
TA = -40°C
20
30
MAX6043 toc03
40
50
10
5
0
20
30
40
50
60
-15
70
TA = +25°C
TA = +85°C
-3
-4
0
-0.5
TA = +85°C
TA = +125°C
-1.5
-2
-1
70
TA = -40°C
0.5
-1.0
TA = +125°C
60
1.0
10
-10
TA = +85°C
-2.0
0
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
OUTPUT CURRENT (mA)
LINE REGULATION
(VOUT = 2.5V)
LINE REGULATION
(VOUT = 10V)
MINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. LOAD CURRENT (VOUT = 2.5V)
MAX6043 toc07
0.500
0.1500
0.1250
0.400
TA = +125°C
ΔVOUT (mV)
0.1000
TA = +85°C
0.0250
TA = +25°C
0
TA = -40°C
16
20
24
28
INPUT VOLTAGE (V)
www.analog.com
32
TA = -40°C
0.200
0.100
TA = +25°C
0
TA = +85°C
-0.100
-0.0250
12
TA = +125°C
0.300
36
40
-0.200
12
16
20
24
28
32
INPUT VOLTAGE (V)
36
40
3.0
MAX6043 toc09
OUTPUT CURRENT (mA)
MINIMUM INPUT-OUTPUT DIFFERENTIAL (V)
OUTPUT CURRENT (mA)
0.1750
ΔVOUT (mV)
10
0
1.5
-5
TA = +125°C
8
TA = +85°C
2.0
ΔVOUT (mV)
ΔVOUT (mV)
ΔVOUT (mV)
TA = +25°C
4
-14
LOAD REGULATION
(SINKING, VOUT = 2.5V)
0
-0.0500
TA = +125°C
-12
LOAD REGULATION
(SINKING, VOUT = 10V)
TA = -40°C
0.0500
-6
LOAD REGULATION
(SOURCING, VOUT = 2.5V)
0.5
0.0750
-4
-8
15
0
TA = -40°C
-2
OUTPUT CURRENT (mA)
1.0
-2.0
TA = +25°C
0
TEMPERATURE (°C)
1.5
-1.5
2
TEMPERATURE (°C)
2.0
-1.0
4
-10
MAX6043 toc08
2.4980
LOAD REGULATION
(SOURCING, VOUT = 10V)
MAX6043 toc06
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
2.5010
THREE TYPICAL UNITS
MAX6043 toc05
2.5015
10.005
10.004
10.003
10.002
10.001
10.000
9.999
9.998
9.997
9.996
9.995
9.994
9.993
9.992
9.991
9.990
ΔVOUT (mV)
THREE TYPICAL UNITS
OUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 10V)
MAX6043 toc02
MAX6043 toc01
2.5020
OUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 2.5V)
ΔVOUT / VOUT = 0.1%
2.5
TA = -40°C
2.0
TA = +25°C
1.5
TA = +85°C
TA = +125°C
1.0
0.5
0
0
20
40
60
80
LOAD CURRENT (mA)
Analog Devices │ 8
MAX6043
Precision High-Voltage Reference in SOT23
Typical Operating Characteristics (continued)
TA = +125°C
1.0
0.5
20
0
40
-80
-100
-100
1
10
100
-120
1000
0.1
1
10
100
1000
OUTPUT IMPEDANCE
vs. FREQUENCY
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 2.5V)
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 10V)
100
400
360
320
280
240
200
160
120
80
40
0
1000
TA = +85°C
TA = -40°C
440
TA = +25°C
TA = +125°C
400
TA = +85°C
360
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
10
TA = +125°C
MAX6043 toc14
480
440
MAX6043 toc13
1
320
280
240
TA = +25°C
200
TA = -40°C
160
120
80
40
0
4
8
0
12 16 20 24 28 32 36 40
0
4
8
12 16 20 24 28 32 36 40
FREQUENCY (kHz)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
(VOUT = 2.5V)
SUPPLY CURRENT vs. TEMPERATURE
(VOUT = 10V)
OUTPUT NOISE-VOLTAGE DENSITY
vs. FREQUENCY
SUPPLY CURRENT (µA)
420
380
360
340
320
300
400
380
360
340
320
300
280
280
260
260
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
www.analog.com
VIN = 15V
240
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
10,000
MAX6043 toc18
440
OUTPUT NOISE-VOLTAGE DENSITY (nV/√Hz)
VIN = 5V
400
240
0.1
FREQUENCY (kHz)
0.1
420
-80
FREQUENCY (kHz)
1
440
-60
LOAD CURRENT (mA)
10
0.1
-60
-120
60
-40
PSRR (dB)
TA = +85°C
MAX6043 toc16
OUTPUT IMPEDANCE (Ω)
PSRR (dB)
1.5
0.01
-20
-40
TA = +25°C
100
SUPPLY CURRENT (µA)
-20
2.0
0
0
MAX6043 toc12
TA = -40°C
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 10V)
MAX6043 toc15
2.5
0
MAX6043 toc11
ΔVOUT / VOUT = 0.1%
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 2.5V)
MAX6043 toc17
3.0
MINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. LOAD CURRENT (VOUT = 10V)
MAX6043 toc10
MINIMUM INPUT-OUTPUT DIFFERENTIAL (V)
(VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C,
unless otherwise noted.)
VOUT = 10V
1000
VOUT = 2.5V
100
0.1
1
10
100
1000
FREQUENCY (Hz)
Analog Devices │ 9
MAX6043
Precision High-Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C,
unless otherwise noted.)
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 2.5V)
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 10V)
MAX6043 toc19
MAX6043 toc20
VOUT
AC-COUPLED
1µV/div
VOUT
AC-COUPLED
4µV/div
1s/div
1s/div
LOAD TRANSIENT
(VOUT = 2.5V)
LOAD TRANSIENT
(VOUT = 10V)
MAX6043 toc21
VIN = 5V
COUT = 0µF
VOUT
50mV/div
AC-COUPLED
2.5V
20mA
MAX6043 toc22
VIN = 15V
COUT = 0µF
VOUT
200mV/div
AC-COUPLED
10V
20mA
IOUT
10mA/div
0
IOUT
10mA/div
0
100µs/div
LOAD TRANSIENT
(VOUT = 2.5V)
100µs/div
LOAD TRANSIENT
(VOUT = 10V)
MAX6043 toc23
VOUT
50mV/div
AC-COUPLED
2.5V
10V
VOUT
100mV/div
AC-COUPLED
20mA
20mA
IOUT
10mA/div
IOUT
10mA/div
0
0
100µs/div
www.analog.com
MAX6043 toc24
VIN = 15V
COUT = 1µF
VIN = 5V
COUT = 1µF
100µs/div
Analog Devices │ 10
MAX6043
Precision High-Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C,
unless otherwise noted.)
LOAD TRANSIENT
(VOUT = 2.5V)
LOAD TRANSIENT
(VOUT = 10V)
MAX6043 toc25
VIN = 5V
COUT = 0µF
VOUT
50mV/div
AC-COUPLED
2.5V
VOUT
100mV/div
AC-COUPLED
10V
IOUT
2mA/div
0
IOUT
2mA/div
0
-2mA
-2mA
200µs/div
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6043 toc26
VIN = 15V
COUT = 0µF
400µs/div
LOAD TRANSIENT
(VOUT = 10V)
MAX6043 toc27
VIN = 5V
COUT = 1µF
MAX6043 toc28
VIN = 15V
COUT = 1µF
VOUT
20mV/div
AC-COUPLED
2.5V
IOUT
2mA/div
0
LINE TRANSIENT
(VOUT = 2.5V)
10V
MAX6043 toc29
5.5V
VIN
AC-COUPLED
500mV/div
4.5V
VOUT
50mV/div
AC-COUPLED
VOUT
AC-COUPLED
10mV/div
IOUT
2mA/div
0
-2mA
-2mA
200µs/div
LINE TRANSIENT
(VOUT = 10V)
TURN-ON TRANSIENT
(VOUT = 2.5V)
MAX6043 toc30
15.5V
VIN
AC-COUPLED
500mV/div
14.5V
VOUT
AC-COUPLED
10mV/div
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TURN-ON TRANSIENT
(VOUT = 10V)
MAX6043 toc31
COUT = 0µF
5V
VIN
2V/div
0V
2.5V
15V
MAX6043 toc32
COUT = 0µF
VIN
5V/div
0V
10V
VOUT
1V/div
0V
10µs/div
10µs/div
400µs/div
4µs/div
VOUT
5V/div
0V
40µs/div
Analog Devices │ 11
MAX6043
Precision High-Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C,
unless otherwise noted.)
TURN-ON TRANSIENT
(VOUT = 2.5V)
TURN-ON TRANSIENT
(VOUT = 10V)
MAX6043 toc33
COUT = 1µF
5V
15V
VIN
2V/div
TURN-OFF TRANSIENT
(VOUT = 2.5V)
MAX6043 toc35
MAX6043 toc34
COUT = 0µF
COUT = 1µF
VIN
5V/div
0V
2.5V
10V
0V
VOUT
5V/div
0V
40µs/div
1µs/div
TURN-OFF TRANSIENT
MAX6043 toc37
COUT = 0µF
MAX6043 toc38
COUT = 1µF
0V
15V
5V
VIN
5V/div
10V
VOUT
5V/div
0V
10V
VOUT
1V/div
0V
VOUT
5V/div
0V
20ms/div
40ms/div
LONG-TERM DRIFT
(VOUT = 2.5V)
25
0
-25
-50
-75
-100
-125
200
400
600
TIME (hr)
800
1000
LONG-TERM DRIFT
(VOUT = 10V)
150
XMAX6043 toc40
125
100
75
50
125
OUTPUT VOLTAGE (ppm)
MAX6043 toc39
150
OUTPUT VOLTAGE (ppm)
VIN
5V/div
0V
2µs/div
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COUT = 1µF
VIN
2V/div
0V
2.5V
0
0V
TURN-OFF TRANSIENT
(VOUT = 2.5V)
MAX6043 toc36
-150
VOUT
1V/div
40µs/div
TURN-OFF TRANSIENT
(VOUT = 10V)
15V
VIN
2V/div
0V
2.5V
0V
VOUT
1V/div
5V
100
75
50
25
0
-25
-50
-75
-100
-125
-150
0
200
400
600
800
1000
TIME (hr)
Analog Devices │ 12
MAX6043
Precision High-Voltage Reference in SOT23
Pin Description
PIN
NAME
FUNCTION
1, 3
I.C.
2
GND
Internally Connected. Do not connect externally.
4
IN
5
OUTF
Voltage-Reference Force Output. Connect OUTF to OUTS as close to the device as possible.
OUTF and OUTS do not require a bypass capacitor for stability.
6
OUTS
Voltage-Reference Sense Input
Ground
Positive Power-Supply Input
Applications Information
Bypassing/Output Capacitance
For the best line-transient performance, decouple the
input with a 0.1μF ceramic capacitor as shown in the
Typical Operating Circuit. Place the capacitor as close
to IN as possible. When transient performance is less
important, no capacitor is necessary.
The MAX6043 does not require an output capacitor for
stability and is stable with capacitive loads up to 100μF.
In applications where the load or the supply can experience step changes, a larger output capacitor reduces
the amount of overshoot (undershoot) and improves the
circuit’s transient response. Place output capacitors as
close to the device as possible for best performance.
Supply Current
The MAX6043 consumes 320μA of quiescent supply
current. This improved efficiency reduces power dissipation and extends battery life.
Thermal Hysteresis
Thermal hysteresis is the change in the output voltage at
TA = +25°C before and after the device is cycled over its
entire operating temperature range. Hysteresis is caused
by differential package stress appearing across the bandgap core transistors. The typical thermal hysteresis value
is 150ppm.
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Turn-On Time
The MAX6043 typically turns on and settles to within
0.05% of the preset output voltage in 150μs.
Short-Circuited Outputs
The MAX6043 features a short-circuit-protected output.
Internal circuitry limits the output current to 60mA when
short-circuiting the output.
Temperature Coefficient vs.
Operating Temperature Range
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 1 shows
the maximum allowable reference-voltage temperature
coefficient to keep the conversion error to less than 1
LSB, as a function of the operating temperature range
(TMAX - TMIN) with the converter resolution as a parameter. The graph assumes the reference-voltage temperature coefficient as the only parameter affecting accuracy.
In reality, the absolute static accuracy of a data converter
is dependent on the combination of many parameters
such as integral nonlinearity, differential nonlinearity,
offset error, gain error, as well as voltage-reference
changes.
Analog Devices │ 13
MAX6043
Precision High-Voltage Reference in SOT23
10,000
1000
100
TEMPERATURE
COEFFICIENT
(ppm/°C)
8 BIT
10
10 BIT
12 BIT
1
14 BIT
16 BIT
0.1
18 BIT
0.01
1
20 BIT
100
10
OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C)
Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error
Typical Operating Circuit
INPUT
SUPPLY
IN
OUTF
OUTS
REFERENCE
OUTPUT
(SEE ORDERING
INFORMATION)
MAX6043
0.1µF*
GND
*INPUT CAPACITOR IS OPTIONAL.
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Analog Devices │ 14
MAX6043
Precision High-Voltage Reference in SOT23
Ordering Information (continued)
OUTPUT VOLTAGE
(V)
TEMPCO
(PPM/°C)
INITIAL ACCURACY
(%)
TOP MARK
MAX6043CAUT41-T
4.096
65
0.50
ABDV
MAX6043BAUT50-T
5.000
20
0.10
ABDW
MAX6043CAUT50-T
5.000
65
0.50
ABDX
MAX6043BAUT10-T
10.000
20
0.10
ABDY
MAX6043CAUT10-T
10.000
65
0.50
ABDZ
MAX6043BAUT25+T
2.500
20
0.10
+ABDQ
MAX6043BAUT33+T
3.300
20
0.10
+ABDS
MAX6043BAUT41+T
4.096
20
0.10
+ABDU
MAX6043BAUT50+T
5.000
20
0.10
+ABDW
MAX6043BAUT10+T
10.000
20
0.10
+ABDY
MAX6043CAUT25+T
2.500
65
0.50
+ABDR
MAX6043CAUT33+T
3.300
65
0.50
+ABDT
MAX6043CAUT41+T
4.096
65
0.50
+ABDV
MAX6043CAUT50+T
5.000
65
0.50
+ABDX
MAX6043CAUT10+T
10.000
65
0.50
+ABDZ
PART
#Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements.
T = Tape and reel.
Chip Information
PROCESS: BiCMOS
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Analog Devices │ 15
MAX6043
Precision High-Voltage Reference in SOT23
Revision History
REVISION
NUMBER
REVISION
DATE
0
11/03
Initial release
1
5/04
Added future product information, updated the Electrical Characteristics and
Typical Operating Characteristics.
2
8/12
Updated the Ordering Information/Selector Guide, Absolute Maximum Ratings,
and the Package Information sections.
3
1/19
Updated Ordering Information, Absolute Maximum Ratings, added Package
Information section
4
3/19
Updated Ordering Information
15
5
1/20
Updated Ordering Information
15
6
7/21
Updated Ordering Information
1, 15
7
11/21
Updated Ordering Information and Electrical Characteristics table
DESCRIPTION
PAGES
CHANGED
—
1–6, 11, 12
1, 14, 15
1, 2, 14
1, 3–7,15
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is
assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that
may result from its use.Specifications subject to change without notice. No license is granted by implicationor
otherwise under any patent or patent rights of Analog Devices. Trademarks andregistered trademarks are the
property of their respective owners.
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