MAX9021, MAX9022, MAX9024 Micropower, Ultra-Small, Single/Dual/Quad Single-Supply Comparators

Description

The MAX9021/MAX9022/MAX9024 single/dual/quad comparators are optimized for low-power consumption while still providing a fast output response. They are designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These comparators have a 3µs propagation delay and consume 2.8µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of low-power, single-supply operation down to 2.5V, and ultra-small footprint makes these devices ideal for portable applications.

The MAX9021/MAX9022/MAX9024 have 4mV of built-in hysteresis to provide noise immunity and prevent oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator-output stage substantially reduces switching current during output transitions, eliminating powersupply glitches.

The MAX9021 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9022 dual comparator is available in 8-pin SOT23, µMAX®, and SO packages, and the MAX9024 quad comparator is available in 14-pin TSSOP and SO packages.

Key Features

Applications/Uses

Low-Cost Solution Available in Space-Saving SC70 Packages (Half the Size of SOT23)
Low 2.8µA Supply Current
3µs Propagation Delay
Internal 4mV Comparator Hysteresis
Comparator Output Swings Rail-to-Rail
2.5 to 5.5V Single-Supply Voltage Range
No Phase Reversal for Overdriven Inputs
Space-Saving Packages
- 5-Pin SC70 (MAX9021)
- 8-Pin SOT23 (MAX9022)
- 8-Pin µMAX (MAX9022)
- 14-Pin TSSOP (MAX9024)

	Battery-Powered
	Digital Line Receivers
	Keyless Entry Systems
	Mobile Communications
	Photodiode Preamps
	Portable Systems
	Sensor-Signal Detection
	Threshold Detectors/Discriminators

Key Specifications: Comparators

Part Number

Number per Pkg.

Typ Prop. Delay (ns)

Input CMVR to Neg. Rail

Min. Total Supply (V)

Max. Total Supply (V)

Max. Supply Current per Comp. (µA)

Typ V_OS (mV)

Logic Output

Latched Outputs

Complementary Outputs

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX9021

3000

Yes

2.5

5.5

CMOS
TTL
TTL/CMOS

SC-70/5
SOT-23/5

-40 to +125

$0.29 @ 1k

MAX9022

SOIC/8
SOT-23/8
uMAX/8

$0.42 @ 1k

MAX9024

SOIC/14
TSSOP/14

$0.62 @ 1k

See All Comparators (81)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-28 of 28

MAX9021

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9021AXK

SC-70;5 pin;5 mm²
Dwg: 21-0076E (PDF)
Use pkgcode/variation: X5-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9021AXK+

SC-70;5 pin;5 mm²
Dwg: 21-0076E (PDF)
Use pkgcode/variation: X5+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9021AXK+T

SC-70;5 pin;5 mm²
Dwg: 21-0076E (PDF)
Use pkgcode/variation: X5+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9021AXK-T

SC-70;5 pin;5 mm²
Dwg: 21-0076E (PDF)
Use pkgcode/variation: X5-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9021AUK+

SOT-23;5 pin;9 mm²
Dwg: 21-0057F (PDF)
Use pkgcode/variation: U5+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9021AUK

SOT-23;5 pin;9 mm²
Dwg: 21-0057F (PDF)
Use pkgcode/variation: U5-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9021AUK+T

SOT-23;5 pin;9 mm²
Dwg: 21-0057F (PDF)
Use pkgcode/variation: U5+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9021AUK-T

SOT-23;5 pin;9 mm²
Dwg: 21-0057F (PDF)
Use pkgcode/variation: U5-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9022ASA+T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9022ASA+

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9022ASA-T

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-2*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022ASA

SOIC;8 pin;31 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S8-2*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022AKA

SOT-23;8 pin;9 mm²
Dwg: 21-0078H (PDF)
Use pkgcode/variation: K8-5*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022AKA+

SOT-23;8 pin;9 mm²
Dwg: 21-0078H (PDF)
Use pkgcode/variation: K8+5*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9022AKA+T

SOT-23;8 pin;9 mm²
Dwg: 21-0078H (PDF)
Use pkgcode/variation: K8+5*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9022AKA-T

SOT-23;8 pin;9 mm²
Dwg: 21-0078H (PDF)
Use pkgcode/variation: K8-5*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022AUA-T

uMAX;8 pin;16 mm²
Dwg: 21-0036J (PDF)
Use pkgcode/variation: U8-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022AUA+T

uMAX;8 pin;16 mm²
Dwg: 21-0036J (PDF)
Use pkgcode/variation: U8+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9022AUA

uMAX;8 pin;16 mm²
Dwg: 21-0036J (PDF)
Use pkgcode/variation: U8-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9022AUA+

uMAX;8 pin;16 mm²
Dwg: 21-0036J (PDF)
Use pkgcode/variation: U8+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9024

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9024ASD+T

SOIC;14 pin;54 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S14+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9024ASD+

SOIC;14 pin;54 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S14+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9024ASD

SOIC;14 pin;54 mm²
Dwg: 21-0041B (PDF)
Use pkgcode/variation: S14-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9024ASD-T

-40°C to +125°C

See data sheet

MAX9024AUD-T

TSSOP;14 pin;33 mm²
Dwg: 21-0066I (PDF)
Use pkgcode/variation: U14-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9024AUD

TSSOP;14 pin;33 mm²
Dwg: 21-0066I (PDF)
Use pkgcode/variation: U14-1*

-40°C to +125°C

RoHS/Lead-Free: No
Materials Analysis

MAX9024AUD+

TSSOP;14 pin;33 mm²
Dwg: 21-0066I (PDF)
Use pkgcode/variation: U14+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9024AUD+T

TSSOP;14 pin;33 mm²
Dwg: 21-0066I (PDF)
Use pkgcode/variation: U14+1*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis