MAX6176 반도체 회로 부품 판매점
High-Precision Voltage References
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 Maxim Integrated |
19-3249; Rev 0; 5/04
High-Precision Voltage References with
Temperature Sensor
General Description
Features
The MAX6173–MAX6177 are low-noise, high-precision
voltage references. The devices feature 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 MAX6173–MAX6177 provide a
TEMP output where the output voltage is proportional to
the die temperature, making the devices suitable for a
wide variety of temperature-sensing applications. The
devices also provide a TRIM input, allowing fine trimming
of the output voltage with a resistive divider network. Low
temperature drift and low noise make the devices ideal
for use with high-resolution A/D or D/A converters.
The MAX6173–MAX6177 provide accurate preset +2.5V,
+3.3V, +4.096V, +5.0V, and +10V reference voltages and
accept input voltages up to +40V. The devices draw
320µA (typ) of supply current and source 30mA or sink
2mA of load current. The MAX6173–MAX6177 use
bandgap technology for low-noise performance and
excellent accuracy. The MAX6173–MAX6177 do not
require an output bypass capacitor for stability, and are
stable with capacitive loads up to 100µF. Eliminating the
output bypass capacitor saves valuable board area in
space-critical applications.
The MAX6173–MAX6177 are available in an 8-pin SO
package and operate over the automotive (-40°C to
+125°C) temperature range.
Applications
♦ 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)
♦ 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
♦ Short-Circuit Protected
Typical Operating Circuit
(VOUT + 2V) TO 40V INPUT
*
*OPTIONAL.
IN
OUT
MAX6173–MAX6177
TEMP
TRIM
GND
REFERENCE
OUTPUT
*
*
A/D Converters
Voltage Regulators
D/A Converters
Digital Voltmeters
Threshold Detectors
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
PART
MAX6173AASA
MAX6173BASA
MAX6174AASA
MAX6174BASA
MAX6175AASA
MAX6175BASA
MAX6176AASA
MAX6176BASA
MAX6177AASA
MAX6177BASA
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
4.096
4.096
5.000
5.000
10.000
10.000
3.300
3.300
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
0.05
0.10
0.06
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.
High-Precision Voltage References with
Temperature Sensor
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +42V
OUT, TRIM, TEMP to GND...........................-0.3V to (VIN + 0.3V)
Output Short Circuit to GND .....................................................5s
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C) ..................471mW
Operating Temperature Range ........................-40°C to +125°C
Junction Temperature .....................................................+150°C
Storage 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—MAX6173 (VOUT = 2.5V)
(VIN = +5V, 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
VOUT
∆VTRIM
CONDITIONS
No load, TA = +25°C
RPOT = 10kΩ
MAX6173A (0.06%)
MAX6173B (0.1%)
Output-Voltage
Temperature Coefficient
(Note 2)
TCVOUT
MAX6173AASA
TA = -40°C to +125°C
MAX6173BASA
Line Regulation (Note 3) ∆VOUT / ∆VIN 4.5V ≤ VIN ≤ 40V
Load Regulation (Note 3)
Output Short-Circuit
Current
Temperature Hysteresis
(Note 4)
∆VOUT /
∆IOUT
ISC
∆VOUT/
cycle
Sourcing:
0 ≤ IOUT ≤ 10mA
Sinking:
-0.6mA ≤ IOUT ≤ 0
OUT shorted to GND
OUT shorted to IN
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
Long-Term Stability
DYNAMIC
Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Quiescent Supply Current
TEMP OUTPUT
TEMP Output Voltage
TEMP Temperature
Coefficient
∆VOUT/
time
1000 hours at TA = +25°C
eOUT
tR
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
To VOUT = 0.1% of final value, COUT = 50pF
VIN Guaranteed by line regulation test
IIN No load
TA = +25°C
TA = -40°C to +125°C
VTEMP
TCTEMP
MIN
2.4985
2.4975
±3
4.5
TYP
2.5
2.5
±6
1.5
3
0.6
0.8
2
2
50
90
60
3
120
50
3.8
6.8
150
300
570
1.9
MAX UNITS
2.5015
2.5025
V
%
3
ppm/°C
10
5
ppm/V
10
10
15
ppm/mA
500
900
mA
ppm
ppm
µVP-P
µVRMS
µs
40.0 V
450
µA
600
mV
mV/°C
2 _______________________________________________________________________________________
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