QuickView - MAX917, MAX918, MAX919, MAX920 SOT23, 1.8V, 나노파워, 기준전압이 있거나 없는 Beyond-the-Rail 비교기

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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 (without 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-current 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 suitable for mixed-voltage system design.

주요기능

애플리케이션/용도

Ultra-Low Supply Current
- 380nA per Comparator (MAX919/MAX920)
- 750nA per Comparator with Reference (MAX917/MAX918)
Guaranteed to Operate Down to +1.8V
Internal 1.245V ±1.5% Reference (MAX917/MAX918)
Input Voltage Range Extends 200mV Beyond-the-Rails
CMOS Push-Pull Output with ±8mA Drive Capability (MAX917/MAX919)
Open-Drain Output Versions Available (MAX918/MAX920)
Crowbar-Current-Free Switching
Internal Hysteresis for Clean Switching
No Phase Reversal for Overdriven Inputs
Space-Saving SOT23 Package

	2셀 배터리 모니터링/관리
	의료 기구
	이동 통신
	노트북 및 PDA
	접지 또는 전원 라인 감지
	원격 측정 및 시스템
	임계값 검출기/판별기
	초저전력 시스템

Key Specifications: Comparators

Part Number

Number per Pkg.

Typ Prop. Delay (ns)

Input CMVR to Neg. Rail

Rail to Rail Input

Min. Total Supply (V)

Max. Total Supply (V)

Max. Supply Current per Comp. (µA)

Typ V_OS (mV)

V_OS (max) (mV)

Logic Output

Package

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

Operating Temp. Range (°C)

Price^**

MAX919

22000

Yes

1.8

5.5

0.8

CMOS
TTL

SOIC(N)/8
SOT/5

-40 to +85

$0.66 @ 1k

MAX920

Open Drain

$0.66 @ 1k

See All Comparators (83)

Key Specifications: Comparators + Reference
Part Number	Comps. per Pkg.	Threshold (V)	Internal Reference Accuracy (%)	Typ Prop. Delay (µs)	Supply Voltage (min) (V)	Supply Voltage (max) (V)	Max. Total Supply Current (µA)	Prog. Hyst.	Typ V_OS (mV)	V_OS (max) (mV)	Logic Output	Package	Smallest Available Package (max w/pins) (mm²)	Operating Temp. Range (°C)	Price^**
MAX917	1	1.245	1.5	22	1.8	5.5	1.3	No	1	10	TTL/CMOS	SOIC(N)/8 SOT/5	9	-40 to +85	$0.95 @ 1k
MAX918	1	1.245	1.5	22	1.8	5.5	1.3	No	1	10	Open Drain	SOIC(N)/8 SOT/5	9	-40 to +85	$0.95 @ 1k
See All Comparators + Reference (42)

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.