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PDF MAX6143 Data sheet ( Hoja de datos )
| Número de pieza | MAX6143 | |
| Descripción | High-Precision Voltage Reference | |
| Fabricantes | Maxim Integrated Products | |
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19-3168; Rev 1; 4/04
High-Precision Voltage Reference with
Temperature Sensor
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-
www.DataSheetut4rUe,.commaking 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
340µA of supply current and sources 30mA or sinks 2mA
of load current. The active-low shutdown feature (SHDN)
reduces supply current to 0.01µA. 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 100µF. 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 (-40°C to +125°C) tem-
perature range.
Applications
Features
♦ Wide (VOUT + 2V) to +40V Supply Voltage Range
♦ Excellent Temperature Stability: 3ppm/°C (max)
♦ Tight Initial Accuracy: 0.05% (max)
♦ Low Noise: 3.8µVP-P (typ at 2.5V Output)
♦ Sources up to 30mA Output Current
♦ Low Supply Current: 450µA (max at +25°C)
♦ Low 0.01µA Shutdown Current
♦ Linear Temperature Transducer Voltage Output
♦ +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
♦ Wide Operating Temperature Range: -40°C to
+125°C
♦ No External Capacitors Required for Stability
Typical Operating Circuit
( VOUT + 2V) TO 40V INPUT
*
*OPTIONAL.
IN
SHDN
OUT
MAX6143
TEMP
TRIM
GND
REFERENCE
OUTPUT
*
*
A/D Converters
D/A Converters
Digital Voltmeters
Voltage Regulators
Threshold Detectors
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
PART
MAX6143AASA25
MAX6143BASA25
MAX6143AASA33
MAX6143BASA33
MAX6143AASA41
MAX6143BASA41
MAX6143AASA50
MAX6143BASA50
MAX6143AASA10
MAX6143BASA10
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
OUTPUT
VOLTAGE (V)
2.500
2.500
3.300
3.300
4.096
4.096
5.000
5.000
10.000
10.000
TEMPERATURE COEFFICIENT
(ppm/°C) 40°C TO +125°C
3
10
3
10
3
10
3
10
3
10
INITIAL
ACCURACY (%)
0.06
0.10
0.06
0.10
0.06
0.10
0.06
0.10
0.05
0.10
________________________________________________________________ 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.
1 page  
High-Precision Voltage Reference with
Temperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6143_41 (VOUT = 4.096V) (continued)
(VIN = VSHDN = +10V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
DYNAMIC
Noise Voltage
www.DataSheetT4uUrn.c-oOmn Settling Time
INPUT
Supply Voltage Range
Quiescent Supply Current
Shutdown Supply Current
SHUTDOWN (SHDN)
Logic-High Input Voltage
Logic-Low Input Voltage
Logic-High Input Current
Logic-Low Input Current
TEMP OUTPUT
TEMP Output Voltage
TEMP Temperature
Coefficient
SYMBOL
CONDITIONS
eOUT
tR
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
To VOUT = 0.1% of final value, COUT = 50pF
VIN
IIN
ISHDN
Guaranteed by line regulation test
No load, normal
operation
TA = +25°C
TA = -40°C to +125°C
No load, VSHDN <
0.8V
TA =-40°C to +125°C
VIH
VIL
IIH
IIL
VTEMP
TCTEMP (0.06%)
MIN TYP MAX
7
11.5
200
6.1 40.0
320 500
650
0.01 5
2.0
0.8
20
2
630
2.1
UNITS
µVP-P
µVRMS
µs
V
µA
µA
V
V
µA
µA
mV
mV/°C
ELECTRICAL CHARACTERISTICS—MAX6143_50 (VOUT = 5.0V)
(VIN = VSHDN = +15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
MAX6143A_50 (0.06%) 4.9970 5.0 5.0030
VOUT
No load, TA = +25°C MAX6143B_50 (0.1%)
4.9950 5.0 5.0050
∆VTRIM RPOT = 10kΩ
±3 ±6
V
%
Output-Voltage
Temperature Coefficient
(Note 2)
TCVOUT
MAX6143AASA
TA = -40°C to +125°C
MAX6143BASA
1.5 3
ppm/°C
3 10
Line Regulation (Note 3)
Load Regulation (Note 3)
∆VOUT /
∆VIN
∆VOUT /
∆IOUT
7V ≤ VIN ≤ 40V
Sourcing:
0 ≤ IOUT ≤ 10mA
Sinking:
-0.6mA ≤ IOUT ≤ 0
TA = +25°C
TA = -40°C to +125°C
TA = +25°C
TA = -40°C to +125°C
TA = +25°C
TA = -40°C to +125°C
0.6 5
ppm/V
0.8 10
2 10
2 15
ppm/mA
50 500
90 900
_______________________________________________________________________________________ 5
5 Page 
High-Precision Voltage Reference with
Temperature Sensor
Typical Operating Characteristics (continued)
(VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.)
0.1Hz TO 10Hz OUTPUT NOISE
MAX6143toc28
www.DataSheet4U.com
LOAD TRANSIENT
(VOUT = 2.5V, COUT = 0, 0 TO 20mA)
MAX6413toc29
20mA
IOUT
LOAD TRANSIENT
(VOUT = 10V, COUT = 0, 0 TO 20mA)
MAX6413toc30
20mA
IOUT
0
4µV/div
0
VOUT
AC-COUPLED
1V/div
VOUT
AC-COUPLED
1V/div
1s/div
LOAD TRANSIENT
(VOUT = 2.5V, COUT = 1µF, 0 TO +20mA)
MAX6413toc31
20mA
IOUT
0
10µs/div
LOAD TRANSIENT
(VOUT = 10V, COUT = 1µF, 0 TO 20mA)
MAX6413toc32
20mA
IOUT
0
10µs/div
LOAD TRANSIENT
(VOUT = 2.5V, COUT = 0, 0 TO -2mA)
MAX6413toc33
0
IOUT
-2mA
VOUT
AC-COUPLED
50mV/div
VOUT
AC-COUPLED
100mV/div
VOUT
AC-COUPLED
200mV/div
200µs/div
100µs/div
40µs/div
LOAD TRANSIENT
(VOUT = 10V, COUT = 0, 0 TO -2mA)
MAX6413toc34
0
IOUT
-2mA
LOAD TRANSIENT
(VOUT = 2.5V, COUT = 1µF, 0 TO -2mA)
MAX6413toc35
0
IOUT
-2mA
LOAD TRANSIENT
(VOUT = 10V, COUT = 1µF, 0 TO -2mA)
MAX6413toc36
0
IOUT
-2mA
VOUT
AC-COUPLED
20mV/div
VOUT
AC-COUPLED
20mV/div
VOUT
AC-COUPLED
5mV/div
200µs/div
400µs/div
400µs/div
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MAX6143.PDF ] | |
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