MAX968EUA-T Maxim Integrated Products, MAX968EUA-T Datasheet

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MAX968EUA-T

Manufacturer Part Number
MAX968EUA-T
Description
Comparator ICs Quad, Micropower, Ul tra-Low-Voltage, Rai
Manufacturer
Maxim Integrated Products
Datasheet

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The MAX965–MAX970 single/dual/quad micropower
comparators feature rail-to-rail inputs and outputs, and
fully specified single-supply operation down to +1.6V.
These devices draw less than 5µA per comparator and
have open-drain outputs that can be pulled beyond V
to 6V (max) above ground. In addition, their rail-to-rail
input common-mode voltage range makes these com-
parators suitable for ultra-low-voltage operation.
A +1.6V to +5.5V single-supply operating voltage range
makes the MAX965 family of comparators ideal for 2-cell
battery-powered applications. The MAX965/MAX967/
MAX968/MAX969 offer programmable hysteresis and
an internal 1.235V ±1.5% reference. All devices are
available in either space-saving 8-pin µMAX
QSOP packages.
________________________Applications
19-1226; Rev 3; 2/07
_____________________Selector Guide
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.
Ultra-Low-Voltage, Rail-to-Rail I/O Comparators
MAX965
MAX966
MAX967
MAX968
MAX969
MAX970
2-Cell Battery-Powered/Portable Systems
Window Comparators
Threshold Detectors/Discriminators
Mobile Communications
Voltage-Level Translation
Ground/Supply-Sensing Applications
________________________________________________________________ Maxim Integrated Products
Yes
Yes
Yes
Yes
No
No
General Description
1
2
2
2
4
4
Single/Dual/Quad, Micropower,
®
or 16-pin
Yes
Yes
Yes
Yes
No
No
CC
♦ Ultra-Low Single-Supply Operation down to +1.6V
♦ Rail-to-Rail Common-Mode Input Voltage Range
♦ 3µA Quiescent Supply Current per Comparator
♦ Open-Drain Outputs Swing Beyond V
♦ 1.235V ±1.5% Precision Internal Reference
♦ 10µs Propagation Delay (50mV overdrive)
♦ Available in Space-Saving Packages:
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
____________________________Features
Pin Configurations appear at end of data sheet.
Ordering Information continued on last page.
__________Typical Operating Circuit
MAX965ESA
MAX965EUA-T
MAX966ESA
MAX966EUA-T
MAX967ESA
MAX967EUA-T
(MAX965/967/968/969)
V
IN
PART
8-Pin µMAX (MAX965–MAX968)
16-Pin QSOP (MAX969/MAX970)
3
4
5
6
IN+
IN-
HYST
REF
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
1.235V
Ordering Information
1
7
V
CC
GND
V
CC
MAX965
PIN-
PACKAGE
8 SO
8 µMAX-8
8 SO
8 µMAX-8
8 SO
8 µMAX-8
OUT
8
CC
V
OUT
CODE
R
PKG
S8-2
U8-1
S8-2
U8-1
S8-2
U8-1
PULLUP
1

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MAX968EUA-T Summary of contents

Page 1

... MAX966EUA-T -40°C to +85°C MAX967ESA -40°C to +85°C MAX967EUA-T -40°C to +85°C Ordering Information continued on last page. Pin Configurations appear at end of data sheet. µMAX is a registered trademark of Maxim Integrated Products, Inc. __________Typical Operating Circuit V IN Yes 3 IN+ No ...

Page 2

Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ............................................................+6V CC Voltages IN_-, IN_+, REF, HYST ..........................-0. OUT_ ...............................................................-0.3V to +6.0V Current into Input Pins ......................................................±20mA Duration of OUT_ Short Circuit to GND or ...

Page 3

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators ELECTRICAL CHARACTERISTICS (continued +1.6V to +5.5V MIN MAX PARAMETER SYMBOL Common-Mode Rejection Ratio CMRR HYST Input Voltage Range HYST Input Leakage I HYST Hysteresis Gain Input Voltage ...

Page 4

Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators _____________________________Typical Operating Characteristics (continued +3.0V 100kΩ 0V PULLUP CM MAX969 SUPPLY CURRENT vs. TEMPERATURE 5. 3.0V CC ...

Page 5

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators _____________________________Typical Operating Characteristics (continued +3.0V 100kΩ 0V PULLUP CM SUPPLY CURRENT PER COMPARATOR vs. OUTPUT TRANSITION FREQUENCY 4.0 3.8 3.6 3.4 3.2 3 5.5V CC 2.8 ...

Page 6

Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators _____________________________Typical Operating Characteristics (continued +3.0V 100kΩ 0V PULLUP CM POWER-UP/DOWN RESPONSE V CC 2V/div OUT 2V/div 5µs/div _____________________________________________________________Pin Descriptions MAX965–MAX968 PIN MAX965 MAX966 MAX967 MAX968 — ...

Page 7

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators ________________________________________________Pin Descriptions (continued) MAX969/MAX970 PIN MAX970 MAX969 SO QSOP — — — ...

Page 8

Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators ________________________________________________________Functional Diagrams V CC IN+ IN- HYST REF MAX965 + REF 1.235V GND V CC INA+ REF REF 1.235V INB+ GND V CC OUTB OUTA INA- INA+ INB- INB+ REF + REF 1.235V GND ...

Page 9

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators function below about 1.5V, although the comparators typically continue to operate with a supply voltage as low as 1V. At low supply voltages (<1.6V), the input common-mode range remains rail-to-rail, but the com- parator’s output sink ...

Page 10

Single/Dual/Quad, Micropower, Ultra-Low-Voltage, Rail-to-Rail I/O Comparators Figure 2 illustrates the case in which IN- has a fixed voltage applied, and IN+ is varied. If the inputs were reversed, the figure would be the same, except with an inverted output. Adding ...

Page 11

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators 3) Calculate R1 ( the values for this example (2.2MΩ + 10kΩ) x (50mV / 5.0V) = 22.1kΩ. 4) Choose the trip point for V IN threshold ...

Page 12

... HYST SO/QSOP ( ) ARE FOR MAX968 ONLY. _Ordering Information (continued) PIN- PART TEMP RANGE PACKAGE 8 SO MAX968ESA -40°C to +85°C 8 µMAX-8 MAX968EUA-T -40°C to +85°C 16 Narrow SO MAX969ESE -40°C to +85°C 16 QSOP MAX969EEE -40°C to +85° MAX970ESD -40°C to +85°C 16 QSOP MAX970EEE -40°C to +85°C ...

Page 13

Ultra-Low-Voltage, Rail-to-Rail I/O Comparators (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 Ø0.50±0.1 0.6±0.1 1 0.6±0.1 D TOP VIEW ...

Page 14

... 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. 14 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2007 Maxim Integrated Products ...

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