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Электронный компонент: MAX6143BASA25

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General Description
The MAX6143 is a low-noise, high-precision voltage ref-
erence. The device features a proprietary temperature-
coefficient curvature-correction circuit and
laser-trimmed thin-film resistors that result in a very low
3ppm/C temperature coefficient and excellent 0.06%
initial accuracy. The MAX6143 provides a TEMP output
where the output voltage is proportional to die tempera-
ture, making the device suitable for a wide variety of
temperature-sensing applications. The device also pro-
vides a TRIM input, allowing fine trimming of the output
voltage with a resistive-divider network. Low tempera-
ture drift and low noise make the MAX6143 ideal for use
with high-resolution A/D or D/A converters.
The MAX6143 provides accurate preset +2.5V, +3.3V,
+4.096V, +5.0V, and +10V reference voltages and
accepts input voltages up to +40V. The device draws
340A of supply current and sources 30mA or sinks 2mA
of load current. The active-low shutdown feature (SHDN)
reduces supply current to 0.01A. The MAX6143 uses
bandgap technology for low-noise performance and
excellent accuracy. The MAX6143 does not require an
output bypass capacitor for stability, and is stable with
capacitive loads up to 100F. Eliminating the output
bypass capacitor saves valuable board area in space-
critical applications.
The MAX6143 is available in an 8-pin SO package and
operates over the automotive (-40C to +125C) tem-
perature range.
Applications
A/D Converters
Voltage Regulators
D/A Converters
Threshold Detectors
Digital Voltmeters
Features
Wide (V
OUT
+ 2V) to +40V Supply Voltage Range
Excellent Temperature Stability: 3ppm/C (max)
 Tight Initial Accuracy: 0.05% (max)
 Low Noise: 3.8V
P-P
(typ at 2.5V Output)
Sources up to 30mA Output Current
 Low Supply Current: 450A (max at +25C)
 Low 0.01A Shutdown Current
 Linear Temperature Transducer Voltage Output
 +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
Wide Operating Temperature Range: -40C to
+125C
No External Capacitors Required for Stability
MAX6143
High-Precision Voltage Reference with
Temperature Sensor
________________________________________________________________
Maxim Integrated Products
1
19-3168; Rev 1; 4/04
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.
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
PART
TEMP RANGE
PIN-
PACKAGE
OUTPUT
VOLTAGE (V)
TEMPERATURE COEFFICIENT
(ppm/
C) 40
C TO +125
C
INITIAL
ACCURACY (%)
MAX6143AASA25
-40
C to +125
C
8 SO
2.500
3
0.06
MAX6143BASA25
-40
C to +125
C
8 SO
2.500
10
0.10
MAX6143AASA33
-40
C to +125
C
8 SO
3.300
3
0.06
MAX6143BASA33
-40
C to +125
C
8 SO
3.300
10
0.10
MAX6143AASA41
-40
C to +125
C
8 SO
4.096
3
0.06
MAX6143BASA41
-40
C to +125
C
8 SO
4.096
10
0.10
MAX6143AASA50
-40
C to +125
C
8 SO
5.000
3
0.06
MAX6143BASA50
-40
C to +125
C
8 SO
5.000
10
0.10
MAX6143AASA10
-40
C to +125
C
8 SO
10.000
3
0.05
MAX6143BASA10
-40
C to +125
C
8 SO
10.000
10
0.10
IN
OUT
GND
*OPTIONAL.
*
*
*
( V
OUT
+ 2V) TO 40V INPUT
REFERENCE
OUTPUT
SHDN
TRIM
TEMP
MAX6143
Typical Operating Circuit
MAX6143
High-Precision Voltage Reference with
Temperature Sensor
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
IN to GND ...............................................................-0.3V to +42V
OUT, SHDN, TRIM, TEMP to GND...............-0.3V to (V
IN
+ 0.3V)
Output Short Circuit to GND .....................................................5s
Continuous Power Dissipation (T
A
= +70C)
8-Pin SO (derate 5.9mW/C above +70C) ..................471mW
Operating Temperature Range ........................-40C to +125C
Junction Temperature .....................................................+150C
Storage Temperature Range ............................-65C to +150C
Lead Temperature (soldering, 10s) ................................+300C
ELECTRICAL CHARACTERISTICS--MAX6143_25 (V
OUT
= 2.5V)
(V
IN
= V
SHDN
= +5V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6143A_25 (0.06%)
2.4985
2.5
2.5015
Output Voltage
V
OUT
No load, T
A
= +25
C
MAX6143B_25 (0.1%)
2.4975
2.5
2.5025
V
Output Adjustment Range
V
TRIM
R
POT
= 10k
3
6
%
MAX6143AASA
1.5
3
Output-Voltage
Temperature Coefficient
(Note 2)
TCV
OUT
T
A
= -40
C to +125
C
MAX6143BASA
3
10
ppm/
C
T
A
= +25
C
0.6
5
Line Regulation (Note 3)
V
OUT
/
V
IN
4.5V
V
IN
40V
T
A
= -40
C to +125
C
0.8
10
ppm/V
T
A
= +25
C
2
10
Sourcing:
0
I
OUT
10mA
T
A
= -40
C to +125
C
2
15
T
A
= +25
C
50
500
Load Regulation (Note 3)
V
OUT
/
I
OUT
Sinking:
-0.6mA
I
OUT
0
T
A
= -40
C to +125
C
90
900
ppm/mA
OUT shorted to GND
60
Output Short-Circuit
Current
I
SC
OUT shorted to IN
3
mA
Temperature Hysteresis
(Note 4)
V
OUT
/
cycle
120
ppm
Long-Term Stability
V
OUT
/
time
1000 hours at T
A
= +25
C
50
ppm
DYNAMIC
f = 0.1Hz to 10Hz
3.8
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
6.8
V
RMS
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
150
s
INPUT
Supply Voltage Range
V
IN
Guaranteed by line regulation test
4.5
40.0
V
T
A
= +25
C
300
450
Quiescent Supply Current
II
N
No load, normal
operation
T
A
= -40
C to +125
C
600
A
Shutdown Supply Current
I
SHDN
No load, V
SHDN
<
0.8V
T
A
= -40
C to +125
C
0.01
5
A
MAX6143
High-Precision Voltage Reference with
Temperature Sensor
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--MAX6143_33 (V
OUT
= 3.3V)
(V
IN
= V
SHDN
= +10V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6143A_33 (0.06%)
3.2980
3.3
3.3020
Output Voltage
V
OUT
No load, T
A
= +25C
MAX6143B_33 (0.1%)
3.2967
3.3
3.3033
V
Output Adjustment Range
V
TRIM
R
POT
= 10k
3
6
%
MAX6143AASA
1.5
3
Output-Voltage
Temperature Coefficient
(Note 2)
TCV
OUT
T
A
= -40C to +125C
MAX6143BASA
3
10
ppm/C
T
A
= +25C
0.6
5
Line Regulation (Note 3)
V
OUT
/
V
IN
5.3V V
IN
40V
T
A
= -40C to +125C
0.8
10
ppm/V
T
A
= +25C
2
10
Sourcing:
0 I
OUT
10mA
T
A
= -40C to +125C
2
15
T
A
= +25C
50
500
Load Regulation (Note 3)
V
OUT
/
I
OUT
Sinking:
-0.6mA I
OUT
0
T
A
= -40C to +125C
90
900
ppm/
mA
OUT shorted to GND
60
Output Short-Circuit Current
I
SC
OUT shorted to IN
3
mA
Temperature Hysteresis
(Note 4)
V
OUT
/
cycle
120
ppm
Long-Term Stability
V
OUT
/
time
1000 hours at T
A
= +25C
50
ppm
DYNAMIC
f = 0.1Hz to 10Hz
5
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
9.3
V
RMS
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
180
s
ELECTRICAL CHARACTERISTICS--MAX6143_25 (V
OUT
= 2.5V) (continued)
(V
IN
= V
SHDN
= +5V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SHUTDOWN (
SHDN
)
Logic-High Input Voltage
V
IH
2.0
V
Logic-Low Input Voltage
V
IL
0.8
V
Logic-High Input Current
I
IH
20
A
Logic-Low Input Current
I
IL
2
A
TEMP OUTPUT
TEMP Output Voltage
V
TEMP
570
mV
TEMP Temperature
Coefficient
TC
TEMP
1.9
mV/
C
MAX6143
High-Precision Voltage Reference with
Temperature Sensor
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS--MAX6143_41 (V
OUT
= 4.096V)
(V
IN
= V
SHDN
= +10V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6143A_41 (0.06%)
4.0935
4.096
4.0985
Output Voltage
V
OUT
No load, T
A
= +25C
MAX6143B_41 (0.1%)
4.0919
4.096
4.1001
V
Output Adjustment Range
V
TRIM
R
POT
= 10k
3
6
%
MAX6143AASA
1.5
3
Output-Voltage Temperature
Coefficient (Note 2)
TCV
OUT
T
A
= -40C to +125C
MAX6143BASA
3
10
ppm/C
T
A
= +25C
0.6
5
Line Regulation (Note 3)
V
OUT
/
V
IN
6.1V V
IN
40V
T
A
= -40C to +125C
0.8
10
ppm/V
T
A
= +25C
2
10
Sourcing:
0 I
OUT
10mA
T
A
= -40C to +125C
2
15
T
A
= +25C
50
500
Load Regulation (Note 3)
V
OUT
/
I
OUT
Sinking:
-0.6mA I
OUT
0
T
A
= -40C to +125C
90
900
ppm/mA
OUT shorted to GND
60
Output Short-Circuit Current
I
SC
OUT shorted to IN
3
mA
Temperature Hysteresis
(Note 4)
V
OUT
/
cycle
120
ppm
Long-Term Stability
V
OUT
/
time
1000 hours at T
A
= +25C
50
ppm
ELECTRICAL CHARACTERISTICS--MAX6143_33 (V
OUT
= 3.3V) (continued)
(V
IN
= V
SHDN
= +10V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT
Supply Voltage Range
V
IN
Guaranteed by line regulation test
5.3
40.0
V
T
A
= +25C
320
500
Quiescent Supply Current
I
IN
No load, normal
operation
T
A
= -40C to +125C
650
A
Shutdown Supply Current
I
SHDN
No load, V
SHDN
<
0.8V
T
A
= -40C to +125C
0.01
5
A
SHUTDOWN (
SHDN
)
Logic-High Input Voltage
V
IH
2.0
V
Logic-Low Input Voltage
V
IL
0.8
V
Logic-High Input Current
I
IH
20
A
Logic-Low Input Current
I
IL
2
A
TEMP OUTPUT
TEMP Output Voltage
V
TEMP
630
mV
TEMP Temperature
Coefficient
TC
TEMP
2.1
mV/C
MAX6143
High-Precision Voltage Reference with
Temperature Sensor
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS--MAX6143_50 (V
OUT
= 5.0V)
(V
IN
= V
SHDN
= +15V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6143A_50 (0.06%)
4.9970
5.0
5.0030
Output Voltage
V
OUT
No load, T
A
= +25C
MAX6143B_50 (0.1%)
4.9950
5.0
5.0050
V
Output Adjustment Range
V
TRIM
R
POT
= 10k
3
6
%
MAX6143AASA
1.5
3
Output-Voltage
Temperature Coefficient
(Note 2)
TCV
OUT
T
A
= -40C to +125C
MAX6143BASA
3
10
ppm/C
T
A
= +25C
0.6
5
Line Regulation (Note 3)
V
OUT
/
V
IN
7V V
IN
40V
T
A
= -40C to +125C
0.8
10
ppm/V
T
A
= +25C
2
10
Sourcing:
0 I
OUT
10mA
T
A
= -40C to +125C
2
15
T
A
= +25C
50
500
Load Regulation (Note 3)
V
OUT
/
I
OUT
Sinking:
-0.6mA I
OUT
0
T
A
= -40C to +125C
90
900
ppm/mA
ELECTRICAL CHARACTERISTICS--MAX6143_41 (V
OUT
= 4.096V) (continued)
(V
IN
= V
SHDN
= +10V, T
A
= -40C to +125C, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DYNAMIC
f = 0.1Hz to 10Hz
7
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
11.5
V
RMS
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
200
s
INPUT
Supply Voltage Range
V
IN
Guaranteed by line regulation test
6.1
40.0
V
T
A
= +25C
320
500
Quiescent Supply Current
I
IN
No load, normal
operation
T
A
= -40C to +125C
650
A
Shutdown Supply Current
I
SHDN
No load, V
SHDN
<
0.8V
T
A
=-40C to +125C
0.01
5
A
SHUTDOWN (
SHDN
)
Logic-High Input Voltage
V
IH
2.0
V
Logic-Low Input Voltage
V
IL
0.8
V
Logic-High Input Current
I
IH
20
A
Logic-Low Input Current
I
IL
2
A
TEMP OUTPUT
TEMP Output Voltage
V
TEMP
630
mV
TEMP Temperature
Coefficient
TC
TEMP
(0.06%)
2.1
mV/C