MAX920 Maxim, MAX920 Datasheet

no-image

MAX920

Manufacturer Part Number
MAX920
Description
The MAX917–MAX920 nanopower comparators in space-saving SOT23 packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1
Manufacturer
Maxim
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX9201ESE
Manufacturer:
ROHM
Quantity:
280
Part Number:
MAX9201ESE+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9201ESE+T
Manufacturer:
MAXIM
Quantity:
35
Part Number:
MAX9201EUE
Manufacturer:
MAXIM
Quantity:
115
Part Number:
MAX9201EUE
Quantity:
73
Part Number:
MAX9201EUE
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9201EUE+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9202ESD
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9202ESD+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9202ESD+T
Manufacturer:
MAXIM
Quantity:
7
Part Number:
MAX9202EUD+T
Manufacturer:
MAXIM
Quantity:
1 000
The MAX917–MAX920 nanopower comparators in
space-saving SOT23 packages feature Beyond-the-
Rails™ inputs and are guaranteed to operate down to
+1.8V. The MAX917/MAX918 feature an on-board
1.245V ±1.5% reference and draw an ultra-low supply
current of only 750nA, while the MAX919/MAX920 (with-
out reference) require just 380nA of supply current.
These features make the MAX917–MAX920 family of
comparators ideal for all 2-cell battery applications,
including monitoring/management.
The unique design of the output stage limits supply-cur-
rent surges while switching, virtually eliminating the
supply glitches typical of many other comparators. This
design also minimizes overall power consumption
under dynamic conditions. The MAX917/MAX919 have
a push-pull output stage that sinks and sources current.
Large internal output drivers allow rail-to-rail output
swing with loads up to 8mA. The MAX918/MAX920
have an open-drain output stage that makes them suit-
able for mixed-voltage system design.
Typical Application Circuit appears at end of data sheet.
19-1512; Rev 2; 10/10
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX917
MAX918
MAX919
MAX920
PART
2-Cell Battery Monitoring/Management
Ultra-Low-Power Systems
Mobile Communications
Notebooks and PDAs
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Telemetry and Remote Systems
Medical Instruments
SOT23, 1.8V, Nanopower, Beyond-the-Rails
REFERENCE
INTERNAL
Yes
Yes
No
No
________________________________________________________________ Maxim Integrated Products
General Description
Comparators With/Without Reference
Open-Drain
Open-Drain
Push-Pull
Push-Pull
OUTPUT
TYPE
Selector Guide
Applications
CURRENT
SUPPLY
(nA)
750
750
380
380
♦ Ultra-Low Supply Current
♦ Guaranteed to Operate Down to +1.8V
♦ Internal 1.245V ±1.5% Reference
♦ Input Voltage Range Extends 200mV
♦ CMOS Push-Pull Output with ±8mA Drive
♦ Open-Drain Output Versions Available
♦ Crowbar-Current-Free Switching
♦ Internal Hysteresis for Clean Switching
♦ No Phase Reversal for Overdriven Inputs
♦ Space-Saving SOT23 Package
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
Pin Configurations continue at end of data sheet.
MAX917EUK+T
MAX917ESA+
MAX918EUK+T
MAX918ESA+
MAX919EUK+T
MAX919EUK/V+T
MAX919ESA+
MAX920EUK+T
MAX920ESA+
( ) ARE FOR MAX917/MAX918.
(MAX917/MAX918)
Beyond-the-Rails
Capability (MAX917/MAX919)
(MAX918/MAX920)
TOP VIEW
380nA per Comparator (MAX919/MAX920)
750nA per Comparator with Reference
PART
(MAX917/MAX918)
OUT
V
IN+
EE
PIN-PACKAGE
5 SOT23
8 SO
5 SOT23
8 SO
5 SOT23
5 SOT23
8 SO
5 SOT23
8 SO
1
2
3
Ordering Information
MAX917
MAX918
MAX919
MAX920
SOT23
Pin Configurations
5
4
V
IN- (REF)
MARK
AFGP
CC
ADIQ
ADIR
ADIS
TOP
ADIT
Features
CODE
U5+1
U5+1
U5+1
U5+1
U5+1
S8+2
S8+2
S8+2
S8+2
PKG
1

Related parts for MAX920

MAX920 Summary of contents

Page 1

... Rails™ inputs and are guaranteed to operate down to +1.8V. The MAX917/MAX918 feature an on-board 1.245V ±1.5% reference and draw an ultra-low supply current of only 750nA, while the MAX919/MAX920 (with- out reference) require just 380nA of supply current. These features make the MAX917–MAX920 family of comparators ideal for all 2-cell battery applications, including monitoring/management ...

Page 2

... Current Into Input Pins......................................................±20mA Output Voltage MAX917/MAX919 ........................(V EE MAX918/MAX920 ......................................(V Output Current..................................................................±50mA Output Short-Circuit Duration .............................................10sec 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— ...

Page 3

... Reference Voltage Temperature TC Coefficient Reference Output e Voltage Noise ΔV Reference Line Regulation ΔV ΔV Reference Load Regulation ΔI OUT ELECTRICAL CHARACTERISTICS—MAX919/MAX920 (V = + -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Supply Voltage Range ...

Page 4

... SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference ELECTRICAL CHARACTERISTICS—MAX919/MAX920 (continued + -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Input Offset Current I Power-Supply Rejection Ratio PSRR Common-Mode Rejection Ratio CMRR Output-Voltage Swing High ...

Page 5

... SUPPLY CURRENT vs. TEMPERATURE 900 850 800 CC 750 700 650 V = 1.8V CC 600 550 500 -40 - TEMPERATURE (°C) MAX919/MAX920 SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY 1. 100 1k 10k 100k OUTPUT TRANSITION FREQUENCY (Hz) MAX917/MAX919 OUTPUT-VOLTAGE HIGH vs ...

Page 6

SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF OVERDRIVE MAX917/MAX919 OUTPUT-VOLTAGE HIGH vs. SOURCE CURRENT AND TEMPERATURE 0.6 0.5 0 +25° +85°C 0.3 ...

Page 7

... TEMPERATURE (°C) PROPAGATION DELAY (t PD- vs. INPUT OVERDRIVE 1. INPUT OVERDRIVE (mV) MAX918/MAX920 PROPAGATION DELAY (t PD+ PULLUP RESISTANCE 250 200 150 100 1. 100 1k 10k R (kΩ) PULLUP PROPAGATION DELAY ( ...

Page 8

SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF OVERDRIVE MAX917/MAX919 PROPAGATION DELAY ( 5V) CC MAX917-920 toc28 IN+ (50mV/ div) OUT (2V/div) 20μs/div PROPAGATION ...

Page 9

... Positive Supply Voltage N.C. No Connection. Not internally connected. output stage that sinks as well as sources current. The MAX918/MAX920 have an open-drain output stage that can be pulled beyond V 6V above V implementing wire-ORed output logic functions. The input common-mode voltage range extends from any differential input voltage within these limits ...

Page 10

... MAX406. Applications Information Low-Voltage, Low-Power Operation The MAX917–MAX920 are ideally suited for use with most battery-powered systems. Table 1 lists a variety of battery types, capacities, and approximate operating times for the MAX917–MAX920, assuming nominal conditions. ...

Page 11

... OUT Additional Hysteresis (MAX918/MAX920 REF R3 The MAX918/MAX920 have a 4mV internal hysteresis band. They have open-drain outputs and require an external pullup resistor (Figure 4). Additional hysteresis = 5V, and can be generated using positive feedback, but the for- mulas differ slightly from those of the MAX917/ MAX919 ...

Page 12

... CC ⎠ The Typical Application Circuit shows an application that converts 5V logic to 3V logic levels. The MAX920 is THF powered by the +5V supply voltage, and the pullup resistor for the MAX920’s open-drain output is connect the +3V supply voltage. This configuration allows the full 5V logic swing without creating overvoltage on the 3V logic inputs ...

Page 13

... Comparators With/Without Reference For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...

Page 14

... Comparators With/Without Reference For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...

Page 15

... Added lead-free and automotive qualified parts 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. 15 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

Related keywords