MAX6173MAX6177
High-Precision Voltage References with
Temperature Sensor
General Description Features
The MAX6173MAX6177 are low-noise, high-precision Wide (V + 2V) to +40V Supply Voltage Range
OUT
voltage references. The devices feature a proprietary
Excellent Temperature Stability: 3ppm/C (max)
temperature-coefficient curvature-correction circuit and
Tight Initial Accuracy: 0.05% (max)
laser-trimmed thin-film resistors that result in a very low
3ppm/C temperature coefficient and excellent 0.06% Low Noise: 3.8V (typ at 2.5V Output)
P-P
initial accuracy. The MAX6173MAX6177 provide a
Sources up to 30mA Output Current
TEMP output where the output voltage is proportional to
Low Supply Current: 450A (max at +25C)
the die temperature, making the devices suitable for a
wide variety of temperature-sensing applications. The Linear Temperature Transducer Voltage Output
devices also provide a TRIM input, allowing fine trimming
+2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
of the output voltage with a resistive divider network. Low
Voltages
temperature drift and low noise make the devices ideal
Wide Operating Temperature Range: -40C to
for use with high-resolution A/D or D/A converters.
+125C
The MAX6173MAX6177 provide accurate preset +2.5V,
No External Capacitors Required for Stability
+3.3V, +4.096V, +5.0V, and +10V reference voltages and
accept input voltages up to +40V. The devices draw
Short-Circuit Protected
320A (typ) of supply current and source 30mA or sink
Typical Operating Circuit
2mA of load current. The MAX6173MAX6177 use
bandgap technology for low-noise performance and
(V + 2V) TO 40V INPUT
OUT
excellent accuracy. The MAX6173MAX6177 do not
require an output bypass capacitor for stability, and are
IN
stable with capacitive loads up to 100F. Eliminating the
REFERENCE
OUT
OUTPUT
output bypass capacitor saves valuable board area in
space-critical applications.
* MAX6173MAX6177
*
The MAX6173MAX6177 are available in an 8-pin SO
TEMP TRIM
package and operate over the automotive (-40C to
+125C) temperature range.
GND
*
*OPTIONAL.
Applications
ADCs Voltage Regulators
DACs Threshold Detectors
Pin Configuration appears at end of data sheet.
Digital Voltmeters
Ordering Information/Selector Guide
PIN- OUTPUT TEMPERATURE COEFFICIENT INITIAL
PART TEMP RANGE
PACKAGE VOLTAGE (V) (ppm/C) -40C TO +125C ACCURACY (%)
MAX6173AASA+ -40C to +125C 8 SO 2.500 3 0.06
MAX6173BASA+ -40C to +125C 8 SO 2.500 10 0.10
MAX6174AASA+ -40C to +125C 8 SO 4.096 3 0.06
MAX6174BASA+ -40C to +125C 8 SO 4.096 10 0.10
MAX6174BASA/V+ -40C to +125C 8 SO 4.096 10 0.10
MAX6175AASA+ -40C to +125C 8 SO 5.000 3 0.06
MAX6175BASA+ -40C to +125C 8 SO 5.000 10 0.10
MAX6175BASA/V+ -40C to +125C 8 SO 5.000 10 0.10
MAX6176AASA+ -40C to +125C 8 SO 10.000 3 0.05
MAX6176BASA+ -40C to +125C 8 SO 10.000 10 0.10
MAX6177AASA+ -40C to +125C 8 SO 3.300 3 0.06
MAX6177BASA+ -40C to +125C 8 SO 3.300 10 0.10
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. 19-3249; Rev 5; 9/14MAX6173MAX6177
High-Precision Voltage References with
Temperature Sensor
ABSOLUTE MAXIMUM RATINGS
IN to GND...............................................................-0.3V to +42V Operating Temperature Range ........................-40C to +125C
OUT, TRIM, TEMP to GND...........................-0.3V to (V + 0.3V) Junction Temperature .....................................................+150C
IN
Output Short Circuit to GND.....................................................5s Storage Temperature Range ............................-65C to +150C
Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) ................................+300C
A
8-Pin SO (derate 5.9mW/C above +70C) ..................471mW Soldering Temperature (reflow) ......................................+260C
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 CHARACTERISTICSMAX6173 (V = 2.5V)
OUT
(V = +5V, T = -40C to +125C, unless otherwise noted. Typical values are at T = +25C.) (Note 1)
IN A A
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OUTPUT
MAX6173A (0.06%)
2.4985 2.5 2.5015
Output Voltage V No load, T = +25C V
OUT A
MAX6173B (0.1%) 2.4975 2.5 2.5025
Output Adjustment Range V R = 10k3 6%
TRIM POT
Output-Voltage MAX6173AASA 1.5 3
Temperature Coefficient TCV T = -40C to +125C ppm/C
OUT A
(Note 2) MAX6173BASA 3 10
T = +25C 0.6 5
A
Line Regulation (Note 3) V / V 4.5V V 40V ppm/V
OUT IN IN
T = -40C to +125C 0.8 10
A
T = +25C210
Sourcing: A
0 I 10mA
OUT T = -40C to +125C215
A
V /
OUT
Load Regulation (Note 3) ppm/mA
I
OUT
T = +25C 50 500
Sinking: A
-0.6mA I 0
OUT T = -40C to +125C 90 900
A
OUT shorted to GND 60
Output Short-Circuit
I mA
SC
Current
OUT shorted to IN 3
Temperature Hysteresis V /
OUT
120 ppm
(Note 4) cycle
V /
OUT
Long-Term Stability 1000 hours at T = +25C 50 ppm
A
time
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 To V = 0.1% of final value, C = 50pF 150 s
R OUT OUT
INPUT
Supply Voltage Range V Guaranteed by line regulation test 4.5 40.0 V
IN
T = +25C 300 450
A
Quiescent Supply Current I No load A
IN
T = -40C to +125C 600
A
TEMP OUTPUT
TEMP Output Voltage V 570 mV
TEMP
TEMP Temperature
TC 1.9 mV/C
TEMP
Coefficient
2 Maxim Integrated