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MAX931EPA+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
_______________General Description
The MAX931-MAX934 single, dual, and quad micropower,
low-voltage comparators plus an on-board 2% accurate
reference feature the lowest power consumption available.
These comparators draw less than 4µA supply current
over temperature (MAX931), and include an internal
1.182V ±2% voltage reference, programmable hysteresis,
and TTL/CMOS outputs that sink and source current.
Ideal for 3V or 5V single-supply applications, the
MAX931-MAX934 operate from a single +2.5V to +11V
supply (or a ±1.25V to ±5V dual supply), and each
comparator’s input voltage range extends from the
negative supply rail to within 1.3V of the positive supply.
The MAX931-MAX934’s unique output stage continuously
sources as much as 40mA. And by eliminating power-
supply glitches that commonly occur when comparators
change logic states, the MAX931-MAX934 minimize
parasitic feedback, which makes them easier to use.
The single MAX931 and dual MAX932/MAX933 provide a
unique and simple method for adding hysteresis without
feedback and complicated equations, using the HYST pin
and two resistors.
For applications that require increased precision with
similar power requirements, see the MAX921-MAX924 data
sheet. These devices include a 1% precision reference.
________________________Applications
Battery-Powered Systems
Threshold Detectors
Window Comparators
Oscillator Circuits
Alarm Circuits
____________________________Features
♦ Ultra-Low 4µA Max Quiescent Current
Over Extended Temp. Range (MAX931)
♦ Power Supplies:
Single +2.5V to +11V
Dual ±1.25V to ±5.5V
♦ Input Voltage Range Includes Negative Supply
♦ Internal 1.182V ±2% Bandgap Reference
♦ Adjustable Hysteresis
♦ TTL-/CMOS-Compatible Outputs
♦ 12µs Propagation Delay (10mV Overdrive)
♦ No Switching Crowbar Current
♦ 40mA Continuous Source Current
♦ Available in Space-Saving µMAX Package
MAX931-MAX934
Ultra Low-Power, Low-Cost
Comparators with 2% Reference
________________________________________________________________
Maxim Integrated Products
1
MAX931
OUT
V-
GND
V+
21
8
3
4
5
6
7
THRESHOLD DETECTOR
V
IN
IN+
IN-
HYST
REF
__________Typical Operating Circuit
19-0194; Rev 1; 2/97
8 SO-40°C to +85°CMAX931ESA
8 µMAX0°C to +70°CMAX931CUA
8 SO0°C to +70°CMAX931CSA
8 Plastic DIP0°C to +70°C
MAX931CPA
PIN-PACKAGETEMP. RANGEPART
16-Pin
DIP/SO
No4YesMAX934
8-Pin
DIP/SO/
µMAX
Yes2YesMAX933
8-Pin
DIP/SO/
µMAX
Yes2YesMAX932
8-Pin
DIP/SO/
µMAX
Yes1YesMAX931
PACK-
AGE
INTERNAL
HYSTERESIS
COMPARATORS
PER
PACKAGE
INTERNAL
2%
REFERENCE
PART
Ordering Information continued on last page.
For similar devices guaranteed over the military temp. range, see
the MAX921-MAX924 data sheet. The MAX931, MAX933, and
MAX934 are pin-compatible with the 1% accurate MAX921,
MAX923, and MAX924, respectively. The MAX932 and
MAX922 are not
pin-compatible.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
8 Plastic DIP-40°C to +85°CMAX931EPA
______________Ordering Information
MAX931-MAX934
Ultra Low-Power, Low-Cost
Comparators with 2% Reference
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+ to V-, V+ to GND, GND to V-................................-0.3V, +12V
Inputs
Current, IN_+, IN_-, HYST...............................................20mA
Voltage, IN_+, IN_-, HYST................(V+ + 0.3V) to (V- – 0.3V)
Outputs
Current, REF....................................................................20mA
Current, OUT_.................................................................50mA
Voltage, REF ....................................(V+ + 0.3V) to (V- – 0.3V)
Voltage, OUT_ (MAX931/934).....(V+ + 0.3V) to (GND – 0.3V)
Voltage, OUT_ (MAX932/933)..........(V+ + 0.3V) to (V- – 0.3V)
OUT_ Short-Circuit Duration (V+ ≤ 5.5V) ...............Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C).............330mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)..842mW
16-Pin SO (derate 8.70mW/°C above +70°C)................696mW
Operating Temperature Ranges:
MAX93_C_ _ .......................................................0°C to +70°C
MAX93_E_ _.....................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
ELECTRICAL CHARACTERISTICS—5V Operation
(V+ = 5V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, 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.
PARAMETER
MAX933,
HYST = REF
MIN TYP MAX UNITS
MAX934
VV- V+ – 1.3
MAX931,
HYST = REF
5.5 6.5
Supply Current IN+ = IN- + 100mV µA
Supply Voltage Range
T
A
= +25°C, 100pF load
2.5 11 V
MAX932,
HYST = REF
2.5 3.2
Input Offset Voltage
CONDITIONS
±10 mV
T
A
= +25°C
nAInput Leakage Current (IN-, IN+)
(Note 1)
±0.01 ±5
Input Leakage Current (HYST)
T
A
= +25°C
±0.02 nA
Input Common-Mode Voltage Range
V
CM
= 2.5V
Common-Mode Rejection Ratio
IN+ = IN- = 2.5V, C/E temp. ranges
MAX931, MAX932, MAX933
0.1 1.0 mV/V
Power-Supply Rejection Ratio
V- to (V+ – 1.3V)
V+ = 2.5V to 11V
100Hz to 100kHz
0.1 1.0 mV/V
Voltage Noise
MAX931, MAX932, MAX933
Overdrive = 10mV
Overdrive = 100mV
20 µV
RMS
Hysteresis Input Voltage Range REF – 0.05 REF V
T
A
= +25°C
12
µsResponse Time
T
A
= +25°C
4
3.1 4.5
3.1 4.5
C/E temp. ranges 4
C/E temp. ranges 6
C/E temp. ranges 6
C/E temp. ranges 8.5
POWER REQUIREMENTS
COMPARATOR
MAX931-MAX934
Ultra Low-Power, Low-Cost
Comparators with 2% Reference
_______________________________________________________________________________________ 3
PARAMETER
Voltage Noise
C/E temp. ranges, I
OUT
= 17mA
MIN TYP MAX UNITS
100Hz to 100kHz 100 µV
RMS
CONDITIONS
VOutput High Voltage V+ – 0.4
V- + 0.4
V
15 25
µASource Current
GND + 0.4
Output Low Voltage
µA
X
815
Sink Current
1.158 1.182 1.206
VReference Voltage
ELECTRICAL CHARACTERISTICS—5V Operation (continued)
(V+ = 5V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS—3V Operation
(V+ = 3V, V- = GND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
MAX933,
HYST = REF
MIN TYP MAX UNITS
MAX934
MAX931,
HYST = REF
5.2 6.2
Supply Current IN+ = (IN- + 100mV)
IN+ = IN- = 1.5V, C/E temp. ranges
µA
MAX932,
HYST = REF
2.4 3.0
Input Offset Voltage
CONDITIONS
±10 mV
T
A
= +25°C
±0.01 ±1 nAInput Leakage Current (IN-, IN+)
Input Leakage Current (HYST)
T
A
= +25°C
±0.02 nA
V
CM
= 1.5V
MAX931, MAX932, MAX933
T
A
= +25°C
T
A
= +25°C
3.4 4.3
3.4 4.3
Note 1: MAX934 comparators work below 2.5V, see
Low-Voltage Operation
section for more details.
C temp. range
E temp. range 1.147 1.217
T
A
= +25°C
C/E temp. ranges 6
T
A
= +25°C
C/E temp. ranges 4
C/E temp. ranges 3.8
C/E temp. ranges 5.8
5.8
C/E temp. ranges
C/E temp. ranges
8.0
C/E temp. ranges,
I
OUT
= 1.8mA
MAX932,
MAX933
MAX931,
MAX934
POWER REQUIREMENTS
COMPARATOR
REFERENCE
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MAX931EPA+

Mfr. #:
Buy MAX931EPA+
Manufacturer:
Maxim Integrated
Description:
Analog Comparators Comparator w/2% Reference
Lifecycle:
New from this manufacturer.
Delivery:
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