Not Recommended for New Designs
This product was manufactured for Maxim by an outside wafer foundry
using a process that is no longer available. It is not recommended for
new designs. The data sheet remains available for existing users.
A Maxim replacement or an industry second-source may be available.
Please see the QuickView data sheet for this part or contact technical
support for assistance.
For further information,
contact Maxim’s Applications Tech Support.
19-0911; Rev 2; 11/04
High-Precision, +2.5V Reference
General Description
The MX580 is a high-performance, three-terminal volt-
age reference which provides a stable +2.5V source for
8-, 10-, and 12-bit data converters and analog functions.
A temperature-compensated internal bandgap operates
from 4.5V to 30V and consumes only 1.5mA.
The reference can be connected directly to a number of
CMOS analog-to-digital and digital-to-analog converters
and is especially convenient in +5V powered systems.
An initial untrimmed accuracy of 0.4% and temperature
stability of 10ppm/°C allow adjustment-free designs in
many precision applications.
Available packages include TO-52 metal cans for
commercial and military temperature grades, as well as
8-pin SO packages for commercial grade devices.
♦
2.500V ±0.4% Accuracy (MX580L/M)
♦
10ppm/°C Temperature Stability (MX580M)
♦
No Adjustments
♦
250µV Long-Term Stability
♦
1.5mA Quiescent Current
♦
4.5V to 30V Operation
Features
MX580
Ordering Information
PART
MX580JH
MX580KH
MX580LH
MX580MH
MX580JCSA
MX580KCSA
MX580LCSA
MX580JESA
MX580KESA
MX580SH
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-
PACKAGE
TO-52 Can
TO-52 Can
TO-52 Can
TO-52 Can
8 SO
8 SO
8 SO
8 SO
8 SO
TO-52 Can
TOLERANCE
±75mV
±25mV
±10mV
±10mV
±75mV
±25mV
±10mV
±75mV
±25mV
±25mV
Applications
CMOS Data Conversion
Digital Panel Meters
Portable Instrumentation
Remote Measurement Systems
Logic-Powered Analog Systems
Typical Application Circuit
+5V
Pin Configurations
BOTTOM VIEW
+V
S
V+
2.5V
REF
MAX580
GND
REF IN+
REF IN-
B0–B12
V
OUT
TO-52
TOP VIEW
ICL7109
CONTROL
ANALOG
INPUT
IN HI
IN LO
V-
-5V
REFERENCE FOR 12-BIT ADC
N.C.
3
GND 4
+2.5V 1
N.C. 2
8
7
+V
S
N.C.
N.C.
N.C.
MX580
6
5
SO
________________________________________________________________
Maxim Integrated Products
1
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.
High-Precision, +2.5V Reference
MX580
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V
IN
to GND) .......................................-0.3V, +40V
Continuous Power Dissipation
TO-52 Metal Can (derate 2.8mW/°C above +25°C) ....350mW
SO (derate 5.3mW/°C above +75°C) ..........................400mW
Output Short-Circuit Duration (Note 1) ..........................Indefinite
Operating Temperature Range
Commercial (J, K, L, M) ......................................0°C to +70°C
Military (S) ......................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +175°C
Lead Temperature (soldering, 10s) .................................+300°C
Thermal Resistance, Junction to Ambient
TO-52 Metal Can......................................................+360°C/W
SO ............................................................................+170°C/W
Junction to Case
TO-52 Metal Can......................................................+100°C/W
SO ..............................................................................+55°C/W
Note 1:
Absolute maximum power dissipation must not be exceeded.
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 CHARACTERISTICS
(V
IN
= +15V. T
A
= +25°C, unless otherwise noted.)
PARAMETER
Output Voltage Tolerance
SYMBOL
I
L
= 0mA
CONDITIONS
MX580J/S
MX580K
MX580L/M
MX580J
T
A
= 0°C to +75°C
Output Voltage Change with
Temperature
(Temperature Coefficient)
T
A
= -40°C to +85°C
T
A
= -55°C to +125°C
I
L
= 0mA, 4.5V < V
IN
< 7V
Line Regulation
I
L
= 0mA, 7V < V
IN
< 30V
Load Regulation
Quiescent Supply Current
Noise
Stability
I
Q
e
n(P-P)
I
L
= 0mA to 10mA
I
L
= 0mA
0.1Hz to 10Hz
Long term
Per month
1.0
60
250
25
MX580K
MX580L
MX580M
MX580J
MX580K
MX580S
MX580J/S
MX580K
MX580L/M
MX580J/S
MX580K
MX580L/M
1.5
1.5
0.3
0.3
MIN
TYP
MAX
±75
±25
±10
15 (85)
7 (40)
4.3 (25)
1.75 (10)
20 (64)
12 (38)
25 (55)
3
2
1
6
4
2
10
1.5
mV
mA
µV
P-P
µV
mV
mV
(ppm/°C)
mV
UNITS
2
_______________________________________________________________________________________
High-Precision, +2.5V Reference
MX580
+V
S
V
OUT
MX580
I=
R
2.5V
+ 0.75mA
R
GND
Figure 1. Two-Component Precision Current Limiter
_______________________________________________________________________________________
3
High-Precision, +2.5V Reference
MX580
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to
www.maxim-ic.com/packages.)
INCHES
DIM
A
A1
B
C
e
E
H
L
MAX
MIN
0.069
0.053
0.010
0.004
0.014
0.019
0.007
0.010
0.050 BSC
0.150
0.157
0.228
0.244
0.016
0.050
MILLIMETERS
MAX
MIN
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
1.27 BSC
3.80
4.00
5.80
6.20
0.40
1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS
MIN
4.80
8.55
9.80
MAX
5.00
8.75
10.00
N MS012
8
AA
14
AB
16
AC
TOP VIEW
DIM
D
D
D
MIN
0.189
0.337
0.386
MAX
0.197
0.344
0.394
D
C
A
e
B
A1
0∞-8∞
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
21-0041
B
1
1
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.
4
_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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