Maxim MAX6043CAUT25 Precision high-voltage reference in sot23 Datasheet

19-3036; Rev 1; 5/04
Precision High-Voltage Reference in SOT23
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 lasertrimmed 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 space-critical applications. The supply-independent,
low supply current makes the MAX6043 ideal for battery-operated, high-performance systems.
The MAX6043 is available in a 6-pin SOT23 package
and operates over the automotive (-40°C to +125°C)
temperature range.
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
Ordering Information
PART
TEMP RANGE
PINPACKAGE
TOP
MARK
MAX6043AAUT25-T
-40°C to +125°C
6 SOT23-6
ABRZ
MAX6043BAUT25-T
-40°C to +125°C
6 SOT23-6
ABDQ
MAX6043CAUT25-T
-40°C to +125°C
6 SOT23-6
ABDR
Ordering Information continued at end of data sheet.
Applications
Typical Operating Circuit appears at end of data sheet.
Analog-to-Digital Converters
Selector Guide
Digital-to-Analog Converters
PART
OUTPUT
VOLTAGE
(V)
TEMPCO
(ppm/oC)
-40oC to
+125oC
INITIAL
ACCURACY
(%)
MAX6043AAUT25
2.5
15
0.06
MAX6043BAUT25
2.5
20
0.1
MAX6043CAUT25
2.5
65
0.5
MAX6043AAUT33
3.3
15
0.06
MAX6043BAUT33
3.3
20
0.1
MAX6043CAUT33
3.3
65
0.5
Digital Voltmeters
Voltage Regulators
Threshold Detectors
Pin Configuration
TOP VIEW
I.C.* 1
GND 2
6
MAX6043
I.C.* 3
SOT23-6
*INTERNALLY CONNECTED. DO NOT CONNECT.
OUTS
5
OUTF
4
IN
MAX6043AAUT41
4.096
15
0.06
MAX6043BAUT41
4.096
20
0.1
MAX6043CAUT41
4.096
65
0.5
MAX6043AAUT50
5.0
15
0.06
MAX6043BAUT50
5.0
20
0.1
MAX6043CAUT50
5.0
65
0.5
MAX6043AAUT10
10.0
15
0.05
MAX6043BAUT10
10.0
20
0.1
MAX6043CAUT10
10.0
65
0.5
________________________________________________________________ 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.
1
MAX6043
General Description
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 9.1mW/°C above +70°C)............727mW
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
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—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
MAX6043A (0.06%)
2.4985
2.5000
2.5015
MAX6043B (0.1%)
2.4975
2.5000
2.5025
MAX6043C (0.5%)
2.4876
2.5000
2.5125
3
15
MAX6043B_25
5
25
MAX6043C_25
10
65
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
MAX6043A_25
Output-Voltage Temperature
Coefficient (Note 2)
Line Regulation (Note 4)
Load Regulation (Note 4)
TA = -40°C to +125°C
4.5V < VIN < 40V
Sourcing,
0 < IOUT < 10mA
Sinking,
-0.6mA < IOUT < 0mA
OUT Short-Circuit Current
TA = +25°C
TA = -40°C to +125°C
TA = +25°C
1
6
1.5
10
8
70
70
900
TA = -40°C to +125°C
70
TA = +25°C
TA = -40°C to +125°C
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
∆t = 1000hr
150
ppm
4
µVP-P
7
µVRMS
150
µs
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
0.1Hz to 10Hz
10Hz to 1kHz
To VOUT = 0.05% of final value, COUT = 50pF
INPUT
Supply Voltage Range
Quiescent Supply Current
2
Inferred from line regulation test
IOUT = 0
4.5
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
370
650
_______________________________________________________________________________________
V
µA
Precision High-Voltage Reference in SOT23
MAX6043
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
MAX6043A (0.06%)
3.2980
3.3000
3.3020
MAX6043B (0.1%)
3.2967
3.3000
3.3033
MAX6043C (0.5%)
3.2836
3.3000
3.3165
MAX6043A_33
3
15
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
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
Line Regulation (Note 4)
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
5.3V ≤ VIN ≤ 40V
TA = -40°C to +125°C
TA = -40°C to +125°C
ppm/°C
ppm/V
70
70
100
V
900
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
150
ppm
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
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
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
5.3
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
V
µA
_______________________________________________________________________________________
3
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
MAX6043A (0.06%)
4.0935
4.0960
4.0985
MAX6043B (0.1%)
4.0919
4.0960
4.1001
MAX6043C (0.5%)
4.0755
4.0960
4.1165
MAX6043A_41
3
15
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
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
Output-Voltage Temperature
Coefficient (Note 2)
Line Regulation (Note 4)
Load Regulation (Note 4)
OUT Short-Circuit Current
IOUT = 0, TA = +25°C
TA = -40°C to +125°C
6.1V ≤ VIN ≤ 40V
TA = -40°C to +125°C
TA = -40°C to +125°C
ppm/°C
ppm/V
70
70
100
V
900
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
150
ppm
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
0.1Hz to 10Hz
6.6
µVP-P
10Hz to 1kHz
12
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
200
µs
INPUT
Supply Voltage Range
Quiescent Supply Current
4
Inferred from line regulation test
IOUT = 0
6.1
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
_______________________________________________________________________________________
V
µA
Precision High-Voltage Reference in SOT23
MAX6043
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
MAX6043A (0.06%)
4.9970
5.0000
5.0030
MAX6043B (0.1%)
4.9950
5.0000
5.0050
MAX6043C (0.5%)
4.9751
5.0000
5.0250
MAX6043A_50
3
15
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
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
IOUT = 0, TA = +25°C
Output-Voltage Temperature
Coefficient (Note 2)
Line Regulation (Note 4)
Load Regulation (Note 4)
OUT Short-Circuit Current
TA = -40°C to +125°C
7V ≤ VIN ≤ 40V
TA = -40°C to +125°C
TA = -40°C to +125°C
ppm/°C
ppm/V
70
70
130
V
900
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
150
ppm
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
0.1Hz to 10Hz
9.5
µVP-P
10Hz to 1kHz
15
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
230
µs
INPUT
Supply Voltage Range
Inferred from line regulation test
Quiescent Supply Current
IOUT = 0
7.0
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
380
650
V
µA
_______________________________________________________________________________________
5
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
MAX6043A (0.05%)
9.9950
10.0000
10.0050
MAX6043B (0.1%)
9.9900
10.0000
10.0100
MAX6043C (0.5%)
9.9500
10.0000
10.0500
MAX6043A_10
3
15
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
Sinking,
-0.6mA ≤ IOUT ≤ 0mA
TA = +25°C
UNITS
OUTPUT
Output Voltage
Output-Voltage Temperature
Coefficient (Note 2)
Line Regulation (Note 4)
Load Regulation (Note 4)
OUT Short-Circuit Current
IOUT = 0, TA = +25°C
TA = -40°C to +125°C
12V ≤ VIN ≤ 40V
TA = -40°C to +125°C
TA = -40°C to +125°C
ppm/°C
ppm/V
70
70
170
V
900
ppm/mA
900
OUT shorted to GND
60
OUT shorted to IN
-2
mA
Thermal Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
150
ppm
DYNAMIC CHARACTERISTICS
Output Noise Voltage
Turn-On Settling Time
0.1Hz to 10Hz
19
µVP-P
10Hz to 1kHz
30
µVRMS
To VOUT = 0.05% of final value, COUT = 50pF
390
µs
INPUT
Supply Voltage Range
Quiescent Supply Current
Note 1:
Note 2:
Note 3:
Note 4:
6
Inferred from line regulation test
IOUT = 0
12.0
40.0
TA = +25°C
320
490
TA = -40°C to +125°C
390
650
V
µA
All devices are 100% production tested at TA = +25°C and guaranteed by design over TA = TMIN to TMAX as specified.
Temperature coefficient is defined as ∆VOUT divided by the temperature range.
Thermal hysteresis defined as the change in output voltage at TA = +25°C before and after cycling the device from TMAX to TMIN.
Line and load regulation do not include the effect of self heating.
_______________________________________________________________________________________
Precision High-Voltage Reference in SOT23
OUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 10V)
OUTPUT VOLTAGE (V)
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
MAX6043 toc03
TA = +25°C
0
TA = -40°C
-2
-4
-6
-8
-10
TA = +125°C
-12
TA = +85°C
-14
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT CURRENT (mA)
LOAD REGULATION
(SOURCING, VOUT = 2.5V)
LOAD REGULATION
(SINKING, VOUT = 10V)
LOAD REGULATION
(SINKING, VOUT = 2.5V)
TA = +25°C
20
1.0
TA = +25°C
-0.5
10
5
0
20
30
40
50
60
70
-3
-2
-3.0
0
-1
-2.0
-1.5
-1.0
-0.5
0
LINE REGULATION
(VOUT = 2.5V)
LINE REGULATION
(VOUT = 10V)
MINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. LOAD CURRENT (VOUT = 2.5V)
TA = +125°C
0.0250
TA = +25°C
TA = -40°C
0.200
0.100
TA = +25°C
0
TA = -40°C
TA = +85°C
-0.100
-0.0250
16
20
24
28
INPUT VOLTAGE (V)
32
36
40
∆VOUT / 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
-0.200
-0.0500
3.0
MINIMUM INPUT-OUTPUT DIFFERENTIAL (V)
0.400
∆VOUT (mV)
TA = +85°C
0
MAX6043 toc08
MAX6043 toc07
0.500
0.300
0.0500
12
-2.5
OUTPUT CURRENT (mA)
0.1000
8
TA = +85°C
TA = +125°C
-2.0
-4
TA = +125°C
4
-0.5
OUTPUT CURRENT (mA)
0.1500
0.0750
0
OUTPUT CURRENT (mA)
0.1750
0.1250
TA = -40°C
0.5
-1.5
-15
10
70
TA = +125°C
-2.0
0
60
TA = +25°C
-1.0
TA = +85°C
-10
TA = +85°C
50
1.0
-5
TA = +125°C
-1.5
40
MAX6043 toc09
-1.0
30
1.5
∆VOUT (mV)
0
∆VOUT (mV)
TA = -40°C
0.5
20
2.0
TA = -40°C
15
10
0
MAX6043 toc05
25
MAX6043 toc04
1.5
∆VOUT (mV)
2
-40 -25 -10 5 20 35 50 65 80 95 110 125
2.0
∆VOUT (mV)
4
MAX6043 toc06
2.5015
THREE TYPICAL UNITS
∆VOUT (mV)
THREE TYPICAL UNITS
OUTPUT VOLTAGE (V)
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
MAX6043 toc01
2.5020
LOAD REGULATION
(SOURCING, VOUT = 10V)
MAX6043 toc02
OUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 2.5V)
12
16
20
24
28
32
INPUT VOLTAGE (V)
36
40
0
20
40
60
80
LOAD CURRENT (mA)
_______________________________________________________________________________________
7
MAX6043
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.)
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.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 2.5V)
TA = -40°C
-20
1.5
TA = +85°C
TA = +125°C
1.0
0.5
0
20
-80
-100
-100
-120
0.1
1
10
100
1000
0.1
1
10
100
1000
FREQUENCY (kHz)
FREQUENCY (kHz)
OUTPUT IMPEDANCE
vs. FREQUENCY
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 2.5V)
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 10V)
0.1
TA = +85°C
320
280
240
200
160
120
80
TA = -40°C
440
TA = +25°C
1
10
100
1000
TA = +85°C
360
320
280
240
TA = +25°C
200
TA = -40°C
160
120
80
40
40
0
0.01
TA = +125°C
400
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
1
TA = +125°C
440
400
360
MAX6043 toc14
MAX6043 toc13
480
MAX6043 toc15
LOAD CURRENT (mA)
10
0.1
-60
-80
60
40
100
0
0
4
8
12 16 20 24 28 32 36 40
0
4
12 16 20 24 28 32 36 40
8
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
380
360
340
320
300
380
360
340
320
300
280
280
260
260
240
240
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
10,000
MAX6043 toc18
VIN = 15V
400
SUPPLY CURRENT (µA)
400
420
OUTPUT NOISE-VOLTAGE DENSITY (nV/√Hz)
440
MAX6043 toc16
VIN = 5V
MAX6043 toc17
OUTPUT IMPEDANCE (Ω)
-60
-120
0
8
-40
PSRR (dB)
PSRR (dB)
TA = +25°C
420
-20
-40
2.0
440
0
MAX6043 toc11
∆VOUT / VOUT = 0.1%
2.5
0
MAX6043 toc10
MINIMUM INPUT-OUTPUT DIFFERENTIAL (V)
3.0
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 10V)
MAX6043 toc12
MINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. LOAD CURRENT (VOUT = 10V)
SUPPLY CURRENT (µA)
MAX6043
Precision High-Voltage Reference in SOT23
VOUT = 10V
1000
VOUT = 2.5V
100
0.1
1
10
FREQUENCY (Hz)
_______________________________________________________________________________________
100
1000
Precision High-Voltage Reference in SOT23
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
LOAD TRANSIENT
(VOUT = 2.5V)
1s/div
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
VIN = 5V
COUT = 1µF
MAX6043 toc24
VIN = 15V
COUT = 1µF
VOUT
50mV/div
AC-COUPLED
2.5V
20mA
VOUT
100mV/div
AC-COUPLED
10V
20mA
IOUT
10mA/div
0
IOUT
10mA/div
0
100µs/div
100µs/div
_______________________________________________________________________________________
9
MAX6043
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.)
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
IOUT
2mA/div
0
-2mA
VOUT
100mV/div
AC-COUPLED
10V
IOUT
2mA/div
0
-2mA
200µs/div
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6043 toc26
VIN = 15V
COUT = 0µF
400µs/div
LINE TRANSIENT
(VOUT = 2.5V)
LOAD TRANSIENT
(VOUT = 10V)
MAX6043 toc28
MAX6043 toc27
VOUT
20mV/div
AC-COUPLED
2.5V
IOUT
2mA/div
0
5.5V
VIN
AC-COUPLED
500mV/div
4.5V
VOUT
50mV/div
AC-COUPLED
10V
VOUT
AC-COUPLED
10mV/div
IOUT
2mA/div
0
-2mA
-2mA
LINE TRANSIENT
(VOUT = 10V)
10µs/div
400µs/div
200µs/div
TURN-ON TRANSIENT
(VOUT = 2.5V)
MAX6043 toc30
TURN-ON TRANSIENT
(VOUT = 10V)
MAX6043 toc31
COUT = 0µF
15.5V
VIN
AC-COUPLED
500mV/div
14.5V
5V
VIN
2V/div
15V
VIN
5V/div
0V
10V
VOUT
1V/div
0V
10µs/div
MAX6043 toc32
COUT = 0µF
0V
VOUT
2.5V
AC-COUPLED
10mV/div
10
MAX6043 toc29
VIN = 15V
COUT = 1µF
VIN = 5V
COUT = 1µF
VOUT
5V/div
0V
4µs/div
40µs/div
______________________________________________________________________________________
Precision High-Voltage Reference in SOT23
TURN-ON TRANSIENT
(VOUT = 10V)
TURN-ON TRANSIENT
(VOUT = 2.5V)
MAX6043 toc33
TURN-OFF TRANSIENT
(VOUT = 2.5V)
MAX6043 toc34
COUT = 1µF
COUT = 1µF
MAX6043 toc35
COUT = 0µF
15V
5V
VIN
5V/div
VIN
2V/div
0V
0V
2.5V
5V
VIN
2V/div
0V
2.5V
10V
VOUT
5V/div
VOUT
1V/div
0V
0V
VOUT
1V/div
0V
40µs/div
40µs/div
TURN-OFF TRANSIENT
(VOUT = 10V)
1µs/div
TURN-OFF TRANSIENT
(VOUT = 2.5V)
MAX6043 toc36
TURN-OFF TRANSIENT
MAX6043 toc37
MAX6043 toc38
COUT = 1µF
COUT = 0µF
COUT = 1µF
15V
15V
5V
VIN
2V/div
VIN
5V/div
0V
2.5V
0V
VIN
5V/div
0V
10V
10V
VOUT
1V/div
VOUT
5V/div
0V
0V
0V
20ms/div
2µs/div
40ms/div
LONG-TERM DRIFT
(VOUT = 2.5V)
LONG-TERM DRIFT
(VOUT = 10V)
125
∆ OUTPUT VOLTAGE (ppm)
125
100
75
50
25
0
-25
-50
-75
-100
-125
-150
XMAX6043 toc40
150
MAX6043 toc39
150
∆ OUTPUT VOLTAGE (ppm)
VOUT
5V/div
100
75
50
25
0
-25
-50
-75
-100
-125
-150
0
200
400
600
TIME (hr)
800
1000
0
200
400
600
800
1000
TIME (hr)
______________________________________________________________________________________
11
MAX6043
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.)
Precision High-Voltage Reference in SOT23
MAX6043
Pin Description
PIN
NAME
FUNCTION
1, 3
I.C.
2
GND
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
Internally Connected. Do not connect externally.
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.
12
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.
______________________________________________________________________________________
Precision High-Voltage Reference in SOT23
MAX6043
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
10
20 BIT
100
OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C)
Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error
______________________________________________________________________________________
13
MAX6043
Precision High-Voltage Reference in SOT23
Ordering Information (continued)
PART
TEMP RANGE
PINPACKAGE
TOP
MARK
MAX6043AAUT33-T
-40°C to +125°C
6 SOT23-6
ABSA
MAX6043BAUT33-T
-40°C to +125°C
6 SOT23-6
ABDS
MAX6043CAUT33-T
-40°C to +125°C
6 SOT23-6
ABDT
MAX6043AAUT41-T
-40°C to +125°C
6 SOT23-6
ABSB
MAX6043BAUT41-T
-40°C to +125°C
6 SOT23-6
ABDU
MAX6043CAUT41-T
-40°C to +125°C
6 SOT23-6
ABDV
MAX6043AAUT50-T
-40°C to +125°C
6 SOT23-6
ABSC
MAX6043BAUT50-T
-40°C to +125°C
6 SOT23-6
ABDW
MAX6043CAUT50-T
-40°C to +125°C
6 SOT23-6
ABDX
MAX6043AAUT10-T
-40°C to +125°C
6 SOT23-6
ABSD
MAX6043BAUT10-T
-40°C to +125°C
6 SOT23-6
ABDY
MAX6043CAUT10-T
-40°C to +125°C
6 SOT23-6
ABDZ
Typical Operating Circuit
INPUT
SUPPLY
IN
OUTF
OUTS
REFERENCE
OUTPUT
(SEE ORDERING
INFORMATION)
MAX6043
0.1µF*
GND
*INPUT CAPACITOR IS OPTIONAL.
Chip Information
TRANSISTOR COUNT: 152
PROCESS: BiCMOS
14
______________________________________________________________________________________
Precision High-Voltage Reference in SOT23
6LSOT.EPS
PACKAGE OUTLINE, SOT-23, 6L
21-0058
F
1
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX6043
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.)
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