Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - voltage reference Series Adjustable SOIC 8 N

General Description

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

ADCs Voltage Regulators

DACs Threshold Detectors

Digital Voltmeters

Features

o Wide (V

OUT

+ 2V) to +40V Supply Voltage Range

o Excellent Temperature Stability: 3ppm/°C (max)

o Tight Initial Accuracy: 0.05% (max)

o Low Noise: 3.8µV

P-P

(typ at 2.5V Output)

o Sources up to 30mA Output Current

o Low Supply Current: 450µA (max at +25°C)

o Linear Temperature Transducer Voltage Output

o +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output

Voltages

o Wide Operating Temperature Range: -40°C to

+125°C

o No External Capacitors Required for Stability

o Short-Circuit Protected

PART TEMP RANGE

PIN-

PACKAGE

OUTPUT

VOLTAGE (V)

TEMPERATURE COEFFICIENT

(ppm/°C) -40°C TO +125°C

INITIAL

ACCURACY (%)

MAX6173AASA+ -40°C to +125°C 8 SO 2.500 3 0.06

MAX6173BASA+ -40°C to +125°C 8 SO 2.500 10 0.10

MAX6174AASA+ -40°C to +125°C 8 SO 4.096 3 0.06

MAX6174BASA+ -40°C to +125°C 8 SO 4.096 10 0.10

MAX6174BASA/V+ -40°C to +125°C 8 SO 4.096 10 0.10

MAX6175AASA+ -40°C to +125°C 8 SO 5.000 3 0.06

MAX6175BASA+ -40°C to +125°C 8 SO 5.000 10 0.10

MAX6175BASA/V+ -40°C to +125°C 8 SO 5.000 10 0.10

MAX6176AASA+ -40°C to +125°C 8 SO 10.000 3 0.05

MAX6176BASA+ -40°C to +125°C 8 SO 10.000 10 0.10

MAX6177AASA+ -40°C to +125°C 8 SO 3.300 3 0.06

MAX6177BASA+ -40°C to +125°C 8 SO 3.300 10 0.10

19-3249; Rev 5; 9/14

MAX6173–MAX6177

High-Precision Voltage References with

Temperature Sensor

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Pin Configuration appears at end of data sheet.

Ordering Information/Selector Guide

Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

OUT

GND

*OPTIONAL.

OUT

+ 2V) TO 40V INPUT

REFERENCE

OUTPUT

TRIM

TEMP

MAX6173–MAX6177

Typical Operating Circuit

Summary of content (19 pages)

PAGE 1
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor General Description 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.
PAGE 2
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 (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 ........................
PAGE 3
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS—MAX6177 (VOUT = 3.3V) (VIN = +10V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6177A (0.06%) 3.2980 3.3 3.3020 MAX6177B (0.1%) 3.2967 3.3 3.
PAGE 4
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS—MAX6174 (VOUT = 4.096V) (VIN = +10V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT Output Voltage Output Adjustment Range VOUT ΔVTRIM No load, TA = +25°C TCVOUT TA = -40°C to +125°C Line Regulation (Note 3) ΔVOUT/ ΔVIN 6.
PAGE 5
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS—MAX6175 (VOUT = 5.0V) (VIN = +15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6175A (0.06%) 4.9970 5.0 5.0030 MAX6175B (0.1%) 4.9950 5.0 5.
PAGE 6
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS—MAX6176 (VOUT = 10V) (VIN = +15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 7
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 4.096V) 10.001 4.097 4.0965 4.096 4.0955 4.095 50 75 100 4.094 125 TEMPERATURE (°C) 0 25 50 75 TEMPERATURE (∞C) LOAD REGULATION vs. SOURCE CURRENT (VOUT = 2.5V) LOAD REGULATION vs. SOURCE CURRENT (VOUT = 4.096V) TA = -40°C 0.
PAGE 8
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) TA = +125°C 40 20 0 5 10 15 20 25 TA = -10°C 40 20 0 TA = +25°C 30 35 TA = +125°C CLOAD = NO LOAD -60 40 0 10 INPUT VOLTAGE (V) MAX6173 toc09 TA = -40°C 1.5 TA = +25°C 1.0 2.0 0.5 8 12 16 50 1.5 TA = +25ᵒC TA = +125ᵒC 16 20 4 8 12 16 2.
PAGE 9
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) OUTPUT IMPEDANCE vs. FREQUENCY (VOUT = 4.096V) OUTPUT IMPEDANCE vs. FREQUENCY (VOUT = 2.5V) 10 1 0.1 0.01 0.01 0.001 0.1 1 10 100 0.001 0.001 1000 0.01 0.
PAGE 10
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) TEMP VOLTAGE vs. TEMPERATURE (VOUT = 4.096V) 600 500 TEMPERATURE (°C) 0 25 50 75 TEMPERATURE (°C) OUTPUT VOLTAGE vs. TRIM VOLTAGE (VOUT = 2.5V) OUTPUT VOLTAGE vs. TRIM VOLTAGE (VOUT = 4.096V) 0 25 50 75 100 -50 125 MAX6173 toc20 2.65 2.60 2.55 2.50 2.
PAGE 11
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) 1000 100 1000 100 10 1 10 100 1000 10000 100000 0.1 1 FREQUENCY (Hz) 10 100 1000 0.1 10000 100000 toc24b 6 6 OUTPUT VOLTAGE NOISE (μVP-P) 4 2 0 -2 -4 10 100 FREQUENCY (Hz) 1000 0.1Hz to 10Hz OUTPUT VOLTAGE NOISE (VOUT = 4.
PAGE 12
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 2.5V, COUT = 1µF, 0 TO +20mA) LOAD TRANSIENT (VOUT = 2.5V, COUT = 0, 0 TO 20mA) MAX6173 toc27 MAX6173 toc28 20mA 20mA IOUT IOUT 0 0 VOUT AC-COUPLED 1V/div VOUT AC-COUPLED 50mV/div 10μs/div 200µs/div LOAD TRANSIENT (VOUT = 4.
PAGE 13
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 4.096V, COUT = 0, ISINK = 0 TO -2mA) LOAD TRANSIENT (VOUT = 2.5V, COUT = 0, 0 TO -2mA) toc31b MAX6173 toc31 0 IOUT 0 ISINK -2mA VOUT AC-COUPLED 200mV/div 40μs/div -2mA VOUT ACCOUPLED 200mV/div 100μs/div LOAD TRANSIENT (VOUT = 2.
PAGE 14
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) LINE TRANSIENT (VOUT = 4.096V, COUT = 0) LINE TRANSIENT (VOUT = 4.096V, COUT = 1μ μF) toc34b VIN VOUT 0.5V/div ACCOUPLED (14.5V TO 15.5V) VIN ACCOUPLED 50mV/div VOUT toc34c 0.5V/div ACCOUPLED (14.5V TO 15.
PAGE 15
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.)-- TURN-ON TRANSIENT (VOUT = 4.096V, COUT = 0) TURN-ON TRANSIENT (VOUT = 4.
PAGE 16
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Pin Description PIN NAME FUNCTION 1, 8 I.C. Internally Connected. Do not connect externally. 2 IN Positive Power-Supply Input 3 TEMP Temperature Proportional Output Voltage. TEMP generates an output voltage proportional to the die temperature. 4 GND Ground 5 TRIM Output Voltage Trim. Connect TRIM to the center of a voltage-divider between OUT and GND for trimming. Leave unconnected to use the preset output voltage.
PAGE 17
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Applications Information Bypassing/Output Capacitance For the best line-transient performance, decouple the input with a 0.1μF ceramic capacitor as shown in the Typical Operating Circuit. Place the capacitor as close to IN as possible. When transient performance is less important, no capacitor is necessary. The MAX6173–MAX6177 do not require an output capacitor for stability and are stable with capacitive loads up to 100μF.
PAGE 18
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Pin Configuration ( VOUT + 2V) TO 40V INPUT TOP VIEW OUT * REFERENCE OUTPUT TRIM IN 2 TEMP 3 MAX6173– MAX6177 GND 4 MAX6173–MAX6177 TEMP + I.C.* 1 IN 8 I.C.* 7 N.C. 6 OUT 5 TRIM SO MAX5436 50kΩ POTENTIOMETER *INTERNALLY CONNECTED. DO NOT CONNECT. GND Chip Information *OPTIONAL. PROCESS: BiCMOS Figure 2.
PAGE 19
MAX6173–MAX6177 High-Precision Voltage References with Temperature Sensor Revision History REVISION NUMBER REVISION DATE 0 6/04 Initial release 1 2/11 Added automotive grade part, lead-free information, and soldering temperature 1, 2 2 3/14 Updated package code in Package Information 14 3 6/14 Updated Ordering Information, Electrical Characteristics, and Typical Operating Characteristics 4 9/14 Updated Typical Operating Characteristics 7–14 5 9/14 Updated Typical Operating Characterist