參數(shù)資料
型號(hào)： MAX977ESD+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/17頁(yè)
文件大小： 0K
描述： IC COMPARATOR DUAL 14-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： 通用
元件數(shù)： 2
輸出類(lèi)型： CMOS，滿(mǎn)擺幅，TTL
電壓 - 電源，單路/雙路(±)： 2.7 V ~ 5.25 V
電壓 - 輸入偏移（最小值）： 2mV @ 5V
電流 - 輸入偏壓（最小值）： 0.1µA @ 5.25V
電流 - 靜態(tài)（最大值）： 500µA
CMRR, PSRR（標(biāo)準(zhǔn)）： 90dB CMRR，90dB PSRR
傳輸延遲（最大）： 820ns
磁滯： 4mV
工作溫度： -40°C ~ 85°C
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
安裝類(lèi)型： 表面貼裝
包裝： 帶卷 (TR)
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.
General Description
The MAX975/MAX977 single/dual comparators feature
three different operating modes, and are optimized for
+3V and +5V single-supply applications. The operating
modes are as follows: high speed, high speed with
auto-standby, and low power. Propagation delay is 28ns
in high-speed mode, while supply current is only 250
A.
Supply current is reduced to 3A in low-power mode.
The auto-standby feature allows the comparator to
automatically change from low-power mode to high-
speed mode upon receipt of an input signal. In the
absence of an input signal, the comparator reverts
back to low-power mode after an adjustable timeout
period. The timeout period for the MAX975 to enter
standby is set by a single capacitor. The dual MAX977
features independently adjustable timeout periods for
each comparator using separate capacitors.
The MAX975/MAX977’s inputs have a common-mode
voltage range of -0.2V to (VCC - 1.2V). The differential
input voltage range extends rail to rail. The outputs are
capable of rail-to-rail operation without external pull-up
circuitry, making these devices ideal for interface with
CMOS/TTL logic. All inputs and outputs can tolerate a
continuous short-circuit fault condition to either rail. The
comparator’s internal hysteresis in high-speed mode
ensures clean output switching, even with slow-moving
input signals.
The single MAX975 is available in 8-pin SO and 8-pin
MAX packages, while the dual MAX977 is available
in 14-pin SO and 16-pin QSOP packages.
________________________Applications
Battery-Powered Systems
RF ID Tags
Keyless Entry
Threshold Detectors/Discriminators
3V Systems
IR Receivers
Digital-Line Receivers
____________________________Features
Three Operating Modes:
High Speed
High Speed with Auto-Standby
Low Power
28ns Propagation Delay (high-speed mode)
5A Max Supply Current in Low-Power/
Auto-Standby Modes
+3V/+5V Single-Supply Operation
Rail-to-Rail Outputs
Ground-Sensing Input
Internal Hysteresis (high-speed mode)
Adjustable Timeout Period
MAX Package (MAX975)
QSOP-16 Package (MAX977)
MAX975/MAX977
Single/Dual, +3V/+5V Dual-Speed
Comparators with Auto-Standby
________________________________________________________________ Maxim Integrated Products
1
Functional Diagram
19-1141; Rev 2; 2/07
Ordering Information
Pin Configurations appear at end of data sheet.
MAX975
VCC
IN+
LP
OUT
GND
STO
HIGH SPEED
LOW POWER
ENABLE
IN-
STAT
TIMING
CIRCUIT
ENABLE
TRANSITION
MONITOR
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX975ESA
-40°C to +85°C
8 SO
S8-2
MAX975EUA-T
-40°C to +85°C
8 MAX-8
U8-1
MAX977ESD
-40°C to +85°C
14 SO
S14-1
MAX977EEE
-40°C to +85°C
16 QSOP
E16-1
MAX is a registered trademark of Maxim Integrated Products, Inc.
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