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MAX6176BASA
High-Precision Voltage References with Temperature Sensor
General DescriptionThe 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.
ApplicationsA/D ConvertersVoltage Regulators
D/A ConvertersThreshold Detectors
Digital Voltmeters
FeaturesWide (VOUT+ 2V) to +40V Supply Voltage RangeExcellent 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 CurrentLow Supply Current: 450µA (max at +25°C)Linear Temperature Transducer Voltage Output+2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
VoltagesWide Operating Temperature Range: -40°C to
+125°CNo External Capacitors Required for StabilityShort-Circuit Protected
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor19-3249; Rev 0; 5/04
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
Typical Operating Circuit
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor
ABSOLUTE MAXIMUM RATINGSStresses 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, 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
ELECTRICAL CHARACTERISTICS—MAX6173 (VOUT= 2.5V)
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6177 (VOUT= 3.3V)
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6174 (VOUT= 4.096V)
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6175 (VOUT= 5.0V)
MAX6173–MAX6177
High-Precision Voltage References withemperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6176 (VOUT= 10V)(VIN
Note 1:All devices are 100% production tested at TA= +25°C and guaranteed by design over TA= TMINto TMAX, as specified.
Note 2:Temperature coefficient is defined as ∆VOUTdivided by the temperature range.
Note 3:Line and load regulation specifications do not include the effects of self-heating.
Note 4:Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMAXto TMIN.
Typical Operating Characteristics(VIN= +5V for VOUT= +2.5V, VIN= +15V for VOUT= +10V, IOUT= 0, TA= +25°C, unless otherwise noted.)
MAX6173–MAX6177
High-Precision Voltage References withemperature SensorOUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 2.5V)
MAX6173 toc01
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. TEMPERATURE
(VOUT = 10V)
MAX6173 toc02
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
LOAD REGULATION vs.
SOURCE CURRENT (VOUT = 2.5V)
MAX6173 toc03
SOURCE CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
LOAD REGULATION
vs. SOURCE CURRENT (VOUT = 10V)
MAX6173 toc04
SOURCE CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
LOAD REGULATION
vs. SINK CURRENT (VOUT = 2.5V)
MAX6173 toc05
SINK CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
LOAD REGULATION
vs. SINK CURRENT (VOUT = 10V)
MAX6173 toc06
SINK CURRENT (mA)
OUTPUT VOLTAGE CHANGE (mV)
LINE REGULATION vs. TEMPERATURE
(VOUT = 2.5V)
MAX6173 toc07
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (
LINE REGULATION vs. TEMPERATURE
(VOUT = 10V)
MAX6173 toc08
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (28321620243640
MINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. SOURCE CURRENT (VOUT = 2.5V)
MAX6173 toc09
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (V)
012164820
Typical Operating Characteristics (continued)(VIN= +5V for VOUT= +2.5V, VIN= +15V for VOUT= +10V, IOUT= 0, TA= +25°C, unless otherwise noted.)
MAX6173–MAX6177
High-Precision Voltage References withemperature SensorMINIMUM INPUT-OUTPUT DIFFERENTIAL
vs. SOURCE CURRENT (VOUT = 10V)
MAX6173 toc10
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (V)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 2.5V)
MAX6173 toc11
FREQUENCY (kHz)
PSRR (dB)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VOUT = 10V)
MAX6173 toc12
FREQUENCY (kHz)
PSRR (dB)
OUTPUT IMPEDANCE vs. FREQUENCY
(VOUT = 2.5V)
MAX6173 toc13
FREQUENCY (kHz)
OUTPUT IMPEDANCE (
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 2.5V)
MAX6173 toc14
INPUT VOLTAGE (V)
SUPPLY CURRENT (
SUPPLY CURRENT vs. INPUT VOLTAGE
(VOUT = 10V)
MAX6173 toc15
INPUT VOLTAGE (V)
SUPPLY CURRENT (
SUPPLY CURRENT vs. TEMPERATURE
(VOUT = 2.5V)
MAX6173 toc16
TEMPERATURE (°C)
SUPPLY CURRENT (
SUPPLY CURRENT vs. TEMPERATURE
(VOUT = 10V)
MAX6173 toc17
TEMPERATURE (°C)
SUPPLY CURRENT (
TEMP VOLTAGE
vs. TEMPERATURE (VOUT = 2.5V)
MAX6173 toc18
TEMPERATURE (°C)
TEMP VOLTAGE (mV)
