General Description
The MAX674 is a precision voltage reference that is
pretrimmed to within ±0.15% of 10V. The reference fea-
tures excellent temperature stability (as low as
12.0ppm/°C guaranteed), low current drain, and low
noise. It is supplied in the space-saving narrow SO
package, as well as, the standard 8-pin plastic DIP
package.
Applications
A/D Converters
D/A Converters
Digital Voltmeters
Voltage Regulators
Threshold Detectors
Features
♦Pretrimmed to +10V, ±0.15%
♦Excellent Temperature Stability: 12ppm/°C
♦Low Noise: 20µVP-P
♦Low Supply Current: 1.4mA (max)
♦Short-Circuit Protected
♦Load Regulation 0.001%/mA
♦Pin-for-Pin Compatible with REF01
MAX674
+10V Precision Voltage Reference
________________________________________________________________ Maxim Integrated Products 1
REFERENCE WITH TRIMMED OUTPUT
MAX674
15V
6
5
VOUT
TRIM
VIN
GND
RP
10kΩ
OUTPUT
2
4
Pin Configurations
Ordering Information
VOUT
TRIMGND
1
2
8
7
N.C.
N.C.VIN
N.C.
N.C.
SO/DIP
3
4
6
5
MAX674
TOP VIEW
Typical Operating Circuit
19-2639; Rev 2; 7/04
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.
PART TEMP RANGE PIN-
PACKAGE
TEMPCO
(ppm/°C)
INITIAL
ERROR
(mV)
MAX674CPA 0°C to +70°C 8 PDIP 12 15
MAX674CSA 0°C to +70°C8 Narrow
SO 12 15
MAX674EPA -40°C to +85°C 8 PDIP 15 15
MAX674ESA -40°C to +85°C8 Narrow
SO 15 15
Pin Configurations continued at end of data sheet.
Ordering Information continued at end of data sheet.
MAX674
+10V Precision Voltage Reference
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = +15V, TA= +25°C, unless otherwise noted.)
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.
Note 1: Temperature coefficient is measured by the “box” method, i.e., the maximum ∆VOUT is divided by ∆T.
Note 2: Line and load regulation specifications include the effect of self-heating.
Note 3: Guaranteed by design for MAX674CPA, MAX674CSA, MAX674EPA, MAX674ESA; sample tested for all other grades and
packages.
Input Voltage .........................................................................40V
Power Dissipation
TO-99 (TV) (derate at 7.1mW/ C above +80°C)...........500mW
CERDIP (J) (derate at 6.7mW/ C above +75°C) ..........500mW
Plastic DIP (P) (derate at 5.6mW/ C above +36°C) .....500mW
Narrow SO (S) (derate at 5.0mW/ C above +55°C) .....300mW
Storage Temperature Range .............................-65°C to +150°C
Operating Temperature Range
MAX674C............................................................0°C to +70°C
MAX674E .........................................................-40°C to +85°C
MAX674M ......................................................-55°C to +125°C
Dice Junction Temperature (TJ) ........................-65°C to +150°C
Output Short-Circuit Duration
(to Ground or VIN)......................................................Indefinite
Lead Temperature (soldering, 60s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Voltage Tolerance IL = 0mA ±15 mV
MAX674CTV/CPA/CSA 12
MAX674ETV/EJA/EPA/ESA 15
Output Voltage Temperature
Coefficient (Note 1) TCVO
MAX674MTV/MJA 20
ppm/°C
Output Adjustment Range VTRIM Rp = 10 ±300 ±600 mV
Line Regulation (Note 2) VIN = 13V to 33V 0.006 0.01 %/V
Load Regulation (Note 2) IL = 0 to 10mA 0.001 0.002 %/mA
Turn-On Settling Time tON To ±0.1% of final value 5 µs
Quiescent Supply Current IQNo load 750 1400 µA
Noise (Note 3) eN(P-P) 0.1Hz to 10Hz 20 30 µVP-P
Sink Current IS0.3 0.5 mA
Short-Circuit Current ISC VOUT = 0V 30 mA
MAX674
+10V Precision Voltage Reference
_______________________________________________________________________________________ 3
LINE REGULATION
vs. FREQUENCY
MAX674 toc01
FREQUENCY (Hz)
LINE REGULATION (dB)
100k10k1k100
16
26
36
46
56
66
76
6
10 1M
VIN = 15V
TA = +25°C
MAX674 OUTPUT WIDEBAND
NOISE vs. BANDWIDTH (0.1Hz
TO FREQUENCY INDICATED)
MAX674 toc02
FREQUENCY (Hz)
OUTPUT NOISE (µVP-P)
100k10k1k100
100
1000
10,000
10
10 1M
VIN = 15V
TA = +25°C
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
MAX674 toc03
INPUT VOLTAGE (V)
MAXIMUM LOAD CURRENT (mA)
252015
5
10
15
20
25
30
35
0
10 30
SHORT-CIRCUIT PROTECTION
500mW MAXIMUM
DISSIPATION
TA = +25°C
MAXIMUM LOAD CURRENT
vs. TEMPERATURE
MAX674 toc04
TEMPERATURE (°C)
MAXIMUM LOAD CURRENT (mA)
120100806040200-20-40
5
10
15
20
25
30
0
-60 140
VIN = 15V
OUTPUT CHANGE DUE TO
THERMAL SHOCK
MAX674 toc05
TIME (s)
PERCENT CHANGE IN OUTPUT VOLTAGE (%)
50403020100
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0
-10 60
DEVICE IMMERSED
IN +75°C OIL BATH
TA =
+25°C
TA =
+75°C
VIN = 15V
Output Adjustment
The MAX674 trim terminal can be used to adjust the
output voltage over a 10V ±300mV range. This feature
allows system errors to be trimmed by setting the refer-
ence to a voltage other than 10V such as 10.240V for
binary applications (see the Typical Operating Circuit).
The trim terminal may, of course, be left open if no
adjustment is needed.
Adjustment of the output does not significantly affect the
temperature performance of the device. The temperature
coefficient change is approximately 0.7ppm/°C for
100mV of output adjustment from its initial value.
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Typical Applications
MAX674
1.1mA
6
5
VOUT
TRIM
VIN
GND
100kΩ
+
-
2
4
9V
9V
10.000V
Figure 2. Precision Calibration Standard
MAX674
15V
6
5
VOUT
TRIM
VIN
GND
10kΩ
+10V
-10V
2
4
10kΩ
+15V
-15V
MAX400
Figure 3. ±10V Reference
MAX674
15V
6
5
VOUT
TRIM
VIN
GND
R
VOLTAGE COMPLIANCE 25V TO +110V
2
4
IOUT
IOUT = + 1mA
R
10.0V
Figure 4. Current Source
MAX674
+10V Precision Voltage Reference
4 _______________________________________________________________________________________
MAX674
+10V Precision Voltage Reference
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5
© 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Chip Topography
GND
0.57”
1.45mm
0.78”
1.98mm
4
5TRIM
6VOUT
2
VIN
Pin Configurations (continued)
VOUT
TRIMGND
1
2
8
7
N.C.
N.C.VIN
N.C.
N.C.
CERDIP
3
4
6
5
MAX674
TOP VIEW
VOUT
VIN
TRIM
N.C.
N.C.
N.C.
N.C.
GROUND
(CASE)
62
8
4
5
1 7
3
MAX674
TO-99 METAL CAN
Ordering Information (continued)
PART TEMP RANGE PIN-
PACKAGE
TEMPCO
(ppm/°C)
INITIAL
ERROR
(mV)
MAX674CTV* 0°C to +70°C 8 TO-99 12 15
MAX674ETV* -40°C to +85°C 8 TO-99 15 15
MAX674EJA* -40°C to +85°C 8 CERDIP 15 15
MAX674MTV* -55°C to +125°C 8 TO-99 20 15
MAX674MJA* -55°C to +125°C 8 CERDIP 20 15
*Contact factory for availability. Not recommended for new
designs.
ENGLISH • ???? • ??? • ???
WHAT'S NEW
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SOLUTIONS
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APPNOTES
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MAX674
Part Number Table
Notes:
See the MAX674 QuickView Data Sheet for further information on this product family or download the MAX674
full data sheet (PDF, 108kB).
1.
Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.2.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one
business day.
3.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: See full
data sheet or Part Naming Conventions.
4.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product
uses.
5.
Part Number
Free
Sample
Buy
Direct
Package:
TYPE PINS SIZE
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free?
Materials Analysis
MAX674MJA/883B
-55C to +125C
RoHS/Lead-Free: No
MAX674CPA
PDIP;8 pin;.300"
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8-2*
0C to +70C
RoHS/Lead-Free: No
Materials Analysis
MAX674CPA+
PDIP;8 pin;.300"
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8+2*
0C to +70C
RoHS/Lead-Free: Yes
Materials Analysis
MAX674EPA-G106
PDIP;8 pin;.300"
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX674EPA+
-40C to +85C
RoHS/Lead-Free: Yes
MAX674EPA
PDIP;8 pin;.300"
Dwg: 21-0043D (PDF)
Use pkgcode/variation: P8-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX674ESA-TG106
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
RoHS/Lead-Free: No
Materials Analysis
MAX674CSA-TG106
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0C to +70C
RoHS/Lead-Free: No
Materials Analysis
MAX674CSA+T
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
0C to +70C
RoHS/Lead-Free: Yes
Materials Analysis
MAX674CSA+
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
0C to +70C
RoHS/Lead-Free: Yes
Materials Analysis
MAX674CSA
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0C to +70C
RoHS/Lead-Free: No
Materials Analysis
MAX674CSA-T
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0C to +70C
RoHS/Lead-Free: No
Materials Analysis
MAX674CSA-G106
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
0C to +70C
RoHS/Lead-Free: No
Materials Analysis
MAX674ESA+
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
-40C to +85C
RoHS/Lead-Free: Yes
Materials Analysis
MAX674ESA+T
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+4*
-40C to +85C
RoHS/Lead-Free: Yes
Materials Analysis
MAX674ESA
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX674ESA-T
SOIC;8 pin;.150"
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-4*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
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