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 band-
gap 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.
Benefits and Features
● Wide (V
OUT
+ 2V) to +40V Supply Voltage Range
● Excellent Temperature Stability: 3ppm/°C (max)
● Tight Initial Accuracy: 0.05% (max)
● Low Noise: 3.8μV
P-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
● AEC-Q100 Qualified (MAX6174BASA/V+ and
MAX6175BASA/V+ Only)
Typical Operating Circuit
(V
OUT
+ 2V) TO 40V INPUT
IN
OUT
REFERENCE
OUTPUT
*
MAX6173–MAX6177
TEMP
TRIM
GND
*
*
Applications
●
ADCs
●
DACs
●
Digital Voltmeters
●
Voltage Regulators
●
Threshold Detectors
*OPTIONAL.
Pin Configuration and Ordering Information appears at end
of data sheet.
19-3249; Rev 9; 3/18
MAX6173–MAX6177
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 (V
IN
+ 0.3V)
Output Short-Circuit to GND ................................................... 5s
Continuous Power Dissipation (T
A
= +70°C) (Note1)
8-Pin SO (derate 7.6mW/°C above +70°C)
.................606mW
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
Soldering Temperature (reflow)
.......................................+260°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.
Package Thermal Characteristics (Note 1)
8-SO
Junction-to-Ambient Thermal Resistance (q
JA
)
........132°C/W
Junction-to-Case Thermal Resistance (q
JC
)
...............38°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations,refer to
https://www.maximintegrated.com/thermal-tutorial
.
Electrical Characteristics—MAX6173 (V
OUT
= 2.5V)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
Output-Voltage
Temperature Coefficient
(Note 3)
Line Regulation (Note 4)
V
OUT
∆V
TRIM
TCV
OUT
DV
OUT
/DV
IN
No load, T
A
= +25°C
R
POT
= 10kΩ
T
A
= -40°C to
+125°C
4.5V ≤ V
IN
≤ 40V
Sourcing:
0 ≤ I
OUT
≤ 10mA
Sinking:
-0.6mA ≤ I
OUT
≤ 0
OUT shorted to GND
OUT shorted to IN
SYMBOL
CONDITIONS
(V
IN
= +5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
MIN
2.4985
2.4975
±3
MAX6173AASA
MAX6173BASA
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
TYP
2.5
2.5
±6
1.5
3
0.6
0.8
2
2
50
90
60
3
120
1000 hours at T
A
= +25°C
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
Guaranteed by line regulation test
No load
T
A
= +25°C
T
A
= -40°C to +125°C
4.5
300
50
3.8
6.8
150
40.0
450
600
3
10
5
10
10
15
500
900
mA
ppm
ppm
µV
P-P
µs
V
µA
ppm/mA
MAX
2.5015
2.5025
UNITS
V
%
ppm/°C
ppm/V
MAX6173A (0.06%)
MAX6173B (0.1%)
Load Regulation (Note 4)
DV
OUT
/DI
OUT
Output Short-Circuit
Current
Temperature Hysteresis
(Note 5)
Long-Term Stability
DYNAMIC
Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Quiescent Supply Current
I
SC
DV
OUT
/
cycle
DV
OUT
/
time
e
OUT
t
R
V
IN
I
IN
µV
RMS
www.maximintegrated.com
Maxim Integrated
│
2
MAX6173–MAX6177
High-Precision Voltage References with
Temperature Sensor
Electrical Characteristics—MAX6173 (V
OUT
= 2.5V) (continued)
PARAMETER
TEMP OUTPUT
TEMP Output Voltage
TEMP Temperature
Coefficient
V
TEMP
TC
TEMP
SYMBOL
CONDITIONS
(V
IN
= +5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
MIN
TYP
570
1.9
MAX
UNITS
mV
mV/°C
Electrical Characteristics—MAX6177 (V
OUT
= 3.3V)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
Output-Voltage
Temperature Coefficient
(Note 3)
Line Regulation (Note 4)
V
OUT
∆V
TRIM
TCV
OUT
DV
OUT
/DV
IN
No load, T
A
= +25°C
R
POT
= 10kΩ
T
A
= -40°C to
+125°C
5.3V ≤ V
IN
≤ 40V
Sourcing:
0 ≤ I
OUT
≤ 10mA
Sinking:
-0.6mA ≤ I
OUT
≤ 0
OUT shorted to GND
OUT shorted to IN
SYMBOL
CONDITIONS
(V
IN
= +10V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
MIN
3.2980
3.2967
±3
MAX6177AASA
MAX6177BASA
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
TYP
3.3
3.3
±6
1.5
3
0.6
0.8
2
2
50
90
60
3
120
1000 hours at T
A
= +25°C
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
Guaranteed by line regulation test
No load
T
A
= +25°C
T
A
= -40°C to +125°C
630
2.1
5.3
320
50
5
9.3
180
40.0
500
650
3
10
5
10
10
15
500
900
mA
ppm
ppm
µV
P-P
µs
V
µA
mV
mV/°C
ppm/mA
MAX
3.3020
3.3033
UNITS
V
%
ppm/°C
ppm/V
MAX6177A (0.06%)
MAX6177B (0.1%)
Load Regulation (Note 4)
DV
OUT
/DI
OUT
Output Short-Circuit
Current
Temperature Hysteresis
(Note 5)
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
I
SC
DV
OUT
/
cycle
DV
OUT
/
time
e
OUT
t
R
V
IN
I
IN
V
TEMP
TC
TEMP
µV
RMS
www.maximintegrated.com
Maxim Integrated
│
3
MAX6173–MAX6177
High-Precision Voltage References with
Temperature Sensor
Electrical Characteristics—MAX6174 (V
OUT
= 4.096V)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
Output-Voltage Temperature
Coefficient (Note 3)
Line Regulation (Note 4)
V
OUT
DV
TRIM
TCV
OUT
DV
OUT
/
DV
IN
DV
OUT
/
DI
OUT
I
SC
DV
OUT
/
cycle
DV
OUT
/
time
1000 hours at T
A
= +25°C
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
No load, T
A
= +25°C
R
POT
= 10kΩ
T
A
= -40°C to +125°C
6.1V ≤ V
IN
≤ 40V
Sourcing:
0 ≤ I
OUT
≤ 10mA
Sinking:
-0.6mA ≤ I
OUT
≤ 0
OUT shorted to GND
OUT shorted to IN
SYMBOL
CONDITIONS
(V
IN
= +10V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
MIN
4.0935
4.0919
±3
MAX6174AASA
MAX6174BASA
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
TYP
4.096
4.096
±6
1.5
3
0.6
0.8
2
2
50
90
60
3
120
50
7
11.5
200
6.1
320
40.0
500
650
475
300
2.1
630
785
1130
3
10
5
10
10
15
500
900
mA
ppm
ppm
µV
P-P
µs
V
µA
ppm/mA
MAX
4.0985
4.1001
UNITS
V
%
ppm/°C
ppm/V
MAX6174A (0.06%)
MAX6174B (0.1%)
Load Regulation (Note 4)
Output Short-Circuit Current
Temperature Hysteresis
(Note 5)
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
e
OUT
t
R
V
IN
I
IN
To V
OUT
= 0.1% of final value, C
OUT
= 50pF
Guaranteed by line regulation test
No load
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +125°C
µV
RMS
V
TEMP
TC
TEMP
T
A
= -40°C to +125°C
mV
mV/°C
www.maximintegrated.com
Maxim Integrated
│
4
MAX6173–MAX6177
High-Precision Voltage References with
Temperature Sensor
Electrical Characteristics—MAX6175 (V
OUT
= 5.0V)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
Output-Voltage Temperature
Coefficient (Note 3)
Line Regulation (Note 4)
V
OUT
DV
TRIM
TCV
OUT
DV
OUT
/
DV
IN
DV
OUT
/
DI
OUT
I
SC
DV
OUT
/
cycle
DV
OUT
/
time
1000 hours at T
A
= +25°C
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
No load, T
A
= +25°C
R
POT
= 10kΩ
T
A
= -40°C to +125°C
7V ≤ V
IN
≤ 40V
Sourcing:
0 ≤ I
OUT
≤ 10mA
Sinking:
-0.6mA ≤ I
OUT
≤ 0
OUT shorted to GND
OUT shorted to IN
SYMBOL
CONDITIONS
(V
IN
= +15V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
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