Maxim MAX6033CAUT50 Ultra-high-precision sot23 series voltage reference Datasheet

19-2300; Rev 2; 6/03
Ultra-High-Precision SOT23 Series
Voltage Reference
Applications
Features
♦ Tiny 6-Pin SOT23 Package
♦ Ultra-Low Temperature Drift: 7ppm/°C (max)
♦ ±0.04% Initial Accuracy
♦ Stable with Capacitive Loads
♦ Low 16µVP-P Noise (0.1Hz to 10Hz) (2.5V Output)
♦ 15mA Output Source Current
♦ Low 200mV Dropout Voltage
♦ Low 40µA Quiescent Current
♦ Wide 2.7V to 12.6V Supply Voltage
♦ Excellent Load Regulation: 0.001mV/mA
Ordering Information
PART
TEMP RANGE
Precision Regulators
MAX6033AAUT_ _-T
-40°C to +125°C
6 SOT23-6
A/D and D/A Converters
MAX6033BAUT_ _-T
-40°C to +125°C
6 SOT23-6
Power Supplies
MAX6033CAUT_ _-T
-40°C to +125°C
6 SOT23-6
Hard-Disk Drives
High-Accuracy Industrial and Process Control
PIN-PACKAGE
Note: Two-number part suffix indicates output voltage option.
SOT23 Package Top Marks appear at end of data sheet.
Hand-Held Instruments
Selector Guide
SUFFIX
VOLTAGE OUTPUT
25
2.500V
30
3.000V
41
4.096V
50
5.000V
Typical Operating Circuit
Pin Configuration
SUPPLY INPUT
TOP VIEW
IN
OUTS
OUTF
REFERENCE OUTPUT
I.C.* 1
0.1µF*
GND 2
MAX6033
MAX6033
6
OUTS
5
OUTF
4
IN
0.1µF (min)
GND
I.C.* 3
SOT23
*INPUT CAPACITOR IS OPTIONAL
*I.C. = INTERNALLY CONNECTED: DO NOT USE
________________________________________________________________ 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
MAX6033
General Description
The MAX6033 ultra-high-precision series voltage reference features a low 7ppm/°C (max) temperature coefficient and a low dropout voltage (200mV, max). Low
temperature drift and low noise make the MAX6033
ideal for use with high-resolution ADCs or DACs.
This device uses bandgap technology for low-noise performance and excellent accuracy. Laser-trimmed, highstability, thin-film resistors, and postpackage trimming
guarantee excellent initial accuracy (±0.04%, max). The
MAX6033 consumes only 40µA of supply current and
sources up to 15mA. Series mode references save system power and use minimal external components compared to two-terminal shunt references.
The MAX6033 is available in the miniature 6-pin SOT23
package and is offered over the automotive temperature range (-40°C to +125°C).
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +13V
OUTF, OUTS to GND................................................-0.3V to +6V
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+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 = 2.500V
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output-Voltage Accuracy
CONDITIONS
TA = +25°C
TA = +25°C
MAX6033A
Output Voltage Temperature
Coefficient
TCVOUT
MAX6033B
VIN
TYP
2.5000
MAX
2.5010
MAX6033B
2.4950
2.5000
2.5050
V
2.5000
2.5025
MAX6033C
2.4975
MAX6033A
-0.04
+0.04
MAX6033B
-0.2
+0.2
MAX6033C
-0.1
+0.1
TA = -40oC to +85oC
1.5
7
TA = -40oC to +125oC
2.5
10
TA = -40oC to +85oC
3
10
7
15
TA = -40oC to +85oC
6
20
TA = -40oC to +125oC
10
o
o
TA = -40 C to +125 C
MAX6033C
Input Voltage Range
MIN
2.4990
UNITS
MAX6033A
2.7
Inferred from line regulation specification
Line Regulation
∆VOUT/
∆VIN
2.7V ≤ VIN ≤ 12.6V
Load Regulation
∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA
0.001
TA = +25°C
VOUT = 0.1%, IOUT = 1mA
Dropout Voltage (Note 2)
VDO
o
TA = -40 C to +85 C
VOUT = 0.1%,
IOUT = 10mA
Quiescent Supply Current
2
IIN
0.02
0.2
0.3
0.4
mV/mA
V
0.5
TA = -40oC to +125oC
TA = +25oC
o
o
µV/V
0.05
0.1
TA = -40°C to +125°C
V
25
50
TA = -40°C to +125°C
ppm/°C
40
12.6
3
TA = +25°C
%
40
o
60
TA = -40 C to +85 C
75
TA = -40oC to +125oC
85
µA
VOUT = 0
90
VOUT = VIN
-2
0.1Hz ≤ f ≤ 10Hz
16
µVP-P
10Hz ≤ f ≤ 1kHz
12
µVRMS
VOUT settles to ±0.01% of final value
500
µs
Temperature Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
40
ppm
Output Short-Circuit Current
ISC
Output-Voltage Noise
en
Turn-On Settling Time
tON
_______________________________________________________________________________________
mA
Ultra-High-Precision SOT23 Series
Voltage Reference
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Output Voltage
SYMBOL
VOUT
CONDITIONS
TA = +25oC
TA = +25oC
Output-Voltage Accuracy
MAX6033A
Output-Voltage Temperature
Coefficient
TCVOUT
MAX6033B
VIN
3.2V ≤ VIN ≤ 12.6V
Load Regulation
∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA
Quiescent Supply Current
IIN
3.0012
MAX6033B
2.9940
3.0000
3.0060
3.0000
3.0030
MAX6033C
2.9970
MAX6033A
-0.04
+0.04
MAX6033B
-0.2
+0.2
MAX6033C
-0.1
1.5
7
TA = -40oC to +125oC
2.5
10
TA = -40oC to +85oC
3
10
7
15
TA = -40oC to +85oC
6
20
TA = -40oC to +125oC
10
40
o
∆VOUT = 0.1%
3.2
TA = +25°C
UNITS
V
%
+0.1
TA = -40oC to +85oC
Inferred from line regulation specification
Line Regulation
VDO
MAX
3.0000
TA = -40 C to +125 C
∆VOUT/
∆VIN
Dropout Voltage (Note 2)
TYP
2.9988
o
MAX6033C
Input Voltage Range
MIN
MAX6033A
ppm/°C
12.6
4
TA = -40°C to +125°C
V
30
µV/V
60
TA = +25°C
0.002
TA = -40°C to +125°C
0.06
0.12
IOUT = 1mA
0.02
0.2
IOUT = 10mA
0.2
0.4
40
60
TA = +25°C
TA = -40°C to +85°C
mV/mA
V
µA
75
TA = -40°C to +125°C
85
VOUT = 0
90
VOUT = VIN
-2
0.1Hz ≤ f ≤ 10Hz
24
µVP-P
10Hz ≤ f ≤ 1kHz
15
µVRMS
VOUT settles to ±0.01% of final value
600
µs
Temperature Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
40
ppm
Output Short-Circuit Current
ISC
Output-Voltage Noise
en
Turn-On Settling Time
tON
mA
ELECTRICAL CHARACTERISTICS—VOUT = 4.096V
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output-Voltage Accuracy
CONDITIONS
TA = +25°C
TA = +25°C
MIN
TYP
MAX
MAX6033A
4.0943
4.0960
4.0977
MAX6033B
4.0878
4.0960
4.1042
4.0960
4.1001
MAX6033C
4.0919
MAX6033A
-0.04
+0.04
MAX6033B
-0.2
+0.2
MAX6033C
-0.1
+0.1
UNITS
V
%
_______________________________________________________________________________________
3
MAX6033
ELECTRICAL CHARACTERISTICS—VOUT = 3.000V
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
ELECTRICAL CHARACTERISTICS—VOUT = 4.096V (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MAX6033A
Output-Voltage Temperature
Coefficient
TCVOUT
MAX6033B
MAX6033C
Input-Voltage Range
VIN
∆VOUT/
∆VIN
4.3V ≤ VIN ≤ 12.6V
Load Regulation
∆VOUT/
∆IOUT
-100µA ≤ IOUT ≤
15mA
VDO
MIN
MAX
1.5
7
TA = -40oC to +125oC
2.5
10
TA = -40oC to +85oC
3
10
TA = -40oC to +125oC
7
15
TA = -40oC to +85oC
6
20
TA = -40oC to +125oC
10
Inferred from line regulation specification
Line Regulation
Dropout Voltage (Note 2)
TYP
TA = -40oC to +85oC
∆VOUT = 0.1%
4.3
TA = +25°C
TA = -40oC to +125oC
Quiescent Supply Current
IIN
0.002
TA = -40oC to +125oC
ISC
Output-Voltage Noise
en
Turn-On Settling Time
tON
30
0.08
0.15
IOUT = 1mA
0.02
0.2
IOUT = 10mA
0.2
0.4
40
60
TA = -40°C to +85°C
75
85
TA = -40oC to +125oC
Output Short-Circuit Current
40
60
TA = +25°C
ppm/°C
12.6
6
TA = +25°C
UNITS
VOUT = 0
90
VOUT = VIN
-2
V
µV/V
mV/mA
V
µA
mA
0.1Hz ≤ f ≤ 10Hz
32
µVP-P
10Hz ≤ f ≤ 1kHz
22
µVRMS
VOUT settles to ±0.01% of final value
800
µs
Temperature Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
40
ppm
ELECTRICAL CHARACTERISTICS—VOUT = 5.000V
(VIN = 5.5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Output Voltage
SYMBOL
VOUT
Output-Voltage Accuracy
CONDITIONS
TA = +25°C
TA = +25°C
MAX6033A
Output-Voltage Temperature
Coefficient
TCVOUT
MAX6033B
MAX6033C
Input Voltage Range
4
VIN
MIN
TYP
MAX
MAX6033A
4.9980
5.000
5.0020
MAX6033B
4.9900
5.000
5.0100
MAX6033C
4.9950
5.000
5.0050
MAX6033A
-0.04
MAX6033B
-0.2
+0.2
MAX6033C
-0.1
+0.1
1.5
7
TA = -40oC to +125oC
2.5
10
TA = -40oC to +85oC
3
10
7
15
TA = -40oC to +85oC
6
20
TA = -40oC to +125oC
10
40
o
TA = -40 C to +125 C
Inferred from line regulation specification
V
+0.04
TA = -40oC to +85oC
o
UNITS
5.2
_______________________________________________________________________________________
12.6
%
ppm/°C
V
Ultra-High-Precision SOT23 Series
Voltage Reference
(VIN = 5.5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Line Regulation
∆VOUT/
∆VIN
5.2V ≤ VIN ≤ 12.6V
Load Regulation
∆VOUT/
∆IOUT
-100µA ≤ IOUT
≤ 15mA
Dropout Voltage (Note 2)
VDO
∆VOUT = 0.1%
Quiescent Supply Current
IIN
MIN
TYP
MAX
7
50
TA = +25°C
TA = -40oC to +125oC
TA = +25°C
0.003
TA = -40oC to +125oC
ISC
Output-Voltage Noise
en
Turn-On Settling Time
tON
0.1
0.2
IOUT = 1mA
0.02
0.2
IOUT = 10mA
0.2
0.4
40
60
TA = -40°C to +85°C
mV/mA
V
µA
75
o
TA = -40 C to +125 C
Output Short-Circuit Current
µV/V
100
TA = +25°C
o
UNITS
85
VOUT = 0
90
VOUT = VIN
-2
mA
0.1Hz ≤ f ≤ 10Hz
40
µVP-P
10Hz ≤ f ≤ 1kHz
26
µVRMS
VOUT settles to ±0.01% of final value
1000
µs
Temperature Hysteresis
(Note 3)
150
ppm
Long-Term Stability
∆t = 1000hr
40
ppm
Note 1: MAX6033 is 100% production tested at TA = +25°C and is guaranteed by design for TA = TMIN to TMAX as specified.
Note 2: Dropout Voltage is the minimum input voltage at which VOUT changes ≤ 0.1% from VOUT at VIN = 5V (VIN = 5.5V for
VOUT = 5V).
Note 3: Temperature Hysteresis is defined as the change in +25°C output voltage before and after cycling the device
from TMAX to TMIN.
Typical Operating Characteristics
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4)
OUTPUT VOLTAGE vs.
TEMPERATURE (VOUT = 5V)
2.5040
MAX6033 toc03
3 TYPICAL UNITS
2.5035
2.5030
OUTPUT VOLTAGE (V)
5.0010
5.0008
5.0006
5.0004
5.0002
5.0000
4.9998
4.9996
4.9994
4.9992
4.9990
4.9988
4.9986
4.9984
4.9982
4.9980
LOAD REGULATION
(VOUT = 2.5V)
MAX6033 toc02
3 TYPICAL UNITS
MAX6033 toc01
2.5010
2.5008
2.5006
2.5004
2.5002
2.5000
2.4998
2.4996
2.4994
2.4992
2.4990
2.4988
2.4986
2.4984
2.4982
2.4980
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE vs.
TEMPERATURE (VOUT = 2.5V)
TA = +125°C
2.5025
2.5020
2.5015
TA = +85°C
2.5010
TA = -40°C
2.5005
TA = +25°C
2.5000
2.4995
2.4990
-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)
-2
0
2
4
6
8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
_______________________________________________________________________________________
5
MAX6033
ELECTRICAL CHARACTERISTICS—VOUT = 5.000V (continued)
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4)
5.003
5.002
TA = +85°C
TA = -40°C
TA = +25°C
4.999
500
TA = +85°C
400
TA = +125°C
300
TA = +25°C
200
100
4.998
TA = -40°C
0
2
4
6
8 10 12 14 16 18 20
4
OUTPUT CURRENT (mA)
-40
-40
-50
-60
200
150
100
120
-50
-60
105
90
75
60
30
15
10
100
1000
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 5V)
TA = +125°C
TA = +25°C
200
180
0.01
0.1
1
10
100
1000
0 1 2 3 4 5 6 7 8 9 10 11 12 13
FREQUENCY (kHz)
INPUT VOLTAGE (V)
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 2.5V)
0.1Hz TO 10Hz OUTPUT NOISE
(VOUT = 5V)
MAX6033 toc11
MAX6033 toc12
160
TA = +85°C
140
VOUT
4µV/div
120
100
VOUT
10µV/div
TA = +125°C
80
60
40
20
0
TA = -40°C
TA = +25°C
0 1 2 3 4 5 6 7 8 9 10 11 12 13
1s/div
INPUT VOLTAGE (V)
6
TA = -40°C
0
MAX6033 toc10
220
-100
0.001
TA = +85°C
45
-90
1
10 12 14 16 18 20
8
135
-90
FREQUENCY (kHz)
6
150
-80
0.1
4
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 2.5V)
-70
0.01
2
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 5V)
-80
0.001
TA = -40°C
OUTPUT CURRENT (mA)
-70
-100
TA = +25°C
0
SUPPLY CURRENT (µA)
-30
TA = +85°C
OUTPUT CURRENT (mA)
-20
-30
350
300
250
10 12 14 16 18 20
-10
PSRR (dB)
PSRR (dB)
-20
8
MAX6033 toc08
-10
6
0
MAX6033 toc07
0
400
0
2
0
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 2.5V)
TA = +125°C
500
450
50
0
-2
MAX6033 toc06
600
DROPOUT VOLTAGE (mV)
5.004
DROPOUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
5.005
600
550
MAX6033 toc05
TA = +125°C
5.000
700
MAX6033 toc04
5.006
5.001
DROPOUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 5V)
DROPOUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 2.5V)
MAX6033 toc09
LOAD REGULATION
(VOUT = 5V)
SUPPLY CURRENT (µA)
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
_______________________________________________________________________________________
1s/div
Ultra-High-Precision SOT23 Series
Voltage Reference
LOAD TRANSIENT
(VOUT = 2.5V)
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6033 toc13
MAX6033 toc14
VIN = 5V
COUT = 0.1µF
VIN = 5V
COUT = 0.1µF
VOUT
50mV/div
AC-COUPLED
2.5V
VOUT
50mV/div
AC-COUPLED
2.5V
1mA
IOUT
1mA/div
-100µA
10mA
IOUT
10mA/div
0
1ms/div
400µs/div
LOAD TRANSIENT
(VOUT = 2.5V)
LOAD TRANSIENT
(VOUT = 2.5V)
MAX6033 toc15
VIN = 5V
COUT = 10µF
MAX6033 toc16
VIN = 5V
COUT = 10µF
VOUT
20mV/div
AC-COUPLED
2.5V
VOUT
50mV/div
AC-COUPLED
2.5V
1mA
10mA
IOUT
1mA/div
-100µA
IOUT
10mA/div
0
400µs/div
1ms/div
LINE TRANSIENT
(VOUT = 2.5V)
LINE TRANSIENT
(VOUT = 5V)
MAX6033 toc17
5.5V
MAX6033 toc18
COUT = 0.1µF
6.5V
COUT = 0.1µF
4.5V
VIN
500mV/div
AC-COUPLED
5.5V
VIN
500mV/div
AC-COUPLED
2.5V
VOUT
10mV/div
AC-COUPLED
5V
VOUT
10mV/div
AC-COUPLED
400µs/div
1ms/div
_______________________________________________________________________________________
7
MAX6033
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4)
Typical Operating Characteristics (continued)
(VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4)
TURN-ON TRANSIENT
(VOUT = 2.5V)
TURN-ON TRANSIENT
(VOUT = 5V)
MAX6033 toc19
5V
MAX6033 toc21
MAX6033 toc20
5.5V
VIN
2V/div
VIN
2V/div
0
5V
VIN
2V/div
0
0
VOUT
1V/div
2.5V
100µs/div
COUT = 10µF
2ms/div
400µs/div
TURN-ON TRANSIENT
(VOUT = 5V)
2.50040
5.5V
2.50035
VIN
2V/div
0
COUT = 10µF
5.0009
5.0008
5.0006
2.50020
5.0005
2.50015
5 TYPICAL UNITS
5.0007
2.50025
VOUT (V)
VOUT
2V/div
5 TYPICAL UNITS
2.50030
0
5V
LONG-TERM STABILITY vs. TIME
(VOUT = 5V)
LONG-TERM STABILITY vs. TIME
(VOUT = 2.5V)
MAX6033 toc22
5.0004
2.50010
5.0003
2.50005
5.0002
2.50000
5.0001
2.49995
5.0000
4.9999
2.49990
2ms/div
VOUT
1V/div
2.5V
0
COUT = 0.1µF
0
COUT = 0.1µF
MAX6033 toc23
0
VOUT
2V/div
5V
0 100 200 300 400 500 600 700 800 900 1000
TIME (HOURS)
0 100 200 300 400 500 600 700 800 900 1000
TIME (HOURS)
Note 4: Many of the MAX6033 Typical Operating Characteristics are similar. The extremes of these characteristics are found in the
MAX6033 (2.5V output) and the MAX6033 (5V output). The Typical Operating Characteristics of the remainder of the
MAX6033 family typically lie between these two extremes and can be estimated based on their output voltages.
8
MAX6033 toc24
TURN-ON TRANSIENT
(VOUT = 2.5V)
VOUT (V)
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
_______________________________________________________________________________________
Ultra-High-Precision SOT23 Series
Voltage Reference
PIN
NAME
1, 3
I.C.
2
GND
4
IN
FUNCTION
IN
Internally Connected. Do not
connect externally.
MAX6033
Pin Description
ISOURCE
MAX6033
OUTF
Ground
Positive Power-Supply Input
5
OUTF
Voltage Reference Force Output.
Short OUTF to OUTS as close to
the device as possible. Bypass
OUTF with 0.1µF (min) capacitor
to GND.
6
OUTS
Voltage Reference Sense
OUTS
GND
Figure 1. Precision Current Source
Applications Information
3V SUPPLY
Bypassing/Load 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 MAX6033 family requires a minimum output capacitance of 0.1µF for stability and is stable with capacitive
loads (including the bypass capacitance) of 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.
VDD
IN
MAX6033
OUT
GND
REF
MAX5143
DAC
OUT
ANALOG
OUTPUT
GND
Figure 2. 14-Bit High-Resolution DAC and Positive Reference
from a Single 3V Supply
Supply Current
The quiescent supply current of the MAX6033 series
reference is typically 40µA and is virtually independent
of the supply voltage. In the MAX6033 family, the load
current is drawn from the input only when required, so
supply current is not wasted and efficiency is maximized at all input voltages. This improved efficiency
reduces power dissipation and extends battery life.
When the supply voltage is below the minimum-specified input voltage (as during turn-on), the devices can
draw up to 150µA beyond the nominal supply current.
The input voltage source must be capable of providing
this current to ensure reliable turn-on.
Output-Voltage Hysteresis
Output voltage 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 temperature hysteresis value is 150ppm.
Turn-On Time
These devices typically turn on and settle to within
0.01% of their final value in >1µs. The turn-on time can
increase up to 2ms with the device operating at the
minimum dropout voltage and the maximum load.
Precision Current Source
Figure 1 shows a typical circuit providing a precision
current source. The OUTF output provides the bias current for the bipolar transistor. OUTS senses the voltage
across the resistor and adjusts the current sourced by
OUTF accordingly.
High-Resolution DAC and
Reference from Single Supply
Figure 2 shows a typical circuit providing both the
power supply and reference for a high-resolution DAC.
A MAX6033 with 2.5V output provides the reference
voltage for the DAC.
_______________________________________________________________________________________
9
MAX6033
Ultra-High-Precision SOT23 Series
Voltage Reference
Chip Information
SOT23 Package Top Marks
PART
10
TOP MARK
MAX6033AAUT25
ABDF
MAX6033AAUT30
ABDG
MAX6033AAUT41
ABDH
MAX6033AAUT50
ABDI
MAX6033BAUT25
AAXL
MAX6033BAUT30
AAXM
MAX6033BAUT41
AAXN
MAX6033BAUT50
AAXO
MAX6033CAUT25
AAXH
MAX6033CAUT30
AAXI
MAX6033CAUT41
AAXJ
MAX6033CAUT50
AAXK
TRANSISTOR COUNT: 656
PROCESS: BiCMOS
______________________________________________________________________________________
Ultra-High-Precision SOT23 Series
Voltage Reference
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 ____________________ 11
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX6033
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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