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參數(shù)資料
| 型號(hào)： | MAX974 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Ultra-Low-Power.Open-Drain.Single/Dual-Supply Comparators |
| 中文描述： | 超低功耗、漏極開路輸出、單/雙電源比較器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 325K |
| 代理商： | MAX974 |
General Description
The MAX971–MAX974 and MAX981–MAX984 single/
dual/quad low-voltage comparators feature the lowest
power consumption available. These micropower
devices draw less than 4μA supply current over
temperature (MAX971/MAX972/MAX981/MAX982), and
include an internal 1.182V ±1% (MAX971/MAX973/
MAX974) or ±2% (MAX981–MAX984) voltage reference
and programmable hysteresis.
Ideal for 3V or 5V single-supply applications, these
devices operate from a single 2.5V to 11V supply (or
±1.25V to ±5.5V dual supplies), and each comparator’s
input voltage ranges from the negative supply rail to within
1.3V of the positive supply.
The single MAX971/MAX981 and the dual MAX973/
MAX982/MAX983 provide a unique, simple method for
adding hysteresis without feedback or complicated
equations, simply by using the HYST pin plus two
resistors.
The MAX971–MAX974 and MAX981–MAX984’s open-
drain outputs permit wire-ORed configurations. Thanks to
an 11V output range and separate GND pin for the output
transistor (MAX971/MAX974, MAX981/MAX984), these
devices are ideal for level translators and bipolar to single-
ended converters. For similar devices with complementary
output stages, see the MAX921–MAX924 (1% reference)
and the MAX931–MAX934 (2% reference).
Features
o
Available in Ultra-Small Packages:
UCSP (MAX972)
μMAX (MAX9_1/MAX9_2/MAX9_3)
o
Ultra-Low Quiescent Current (4μA, max)
Over Extended Temp Range (MAX971/MAX981)
o
Power Supplies:
Single 2.5V to 11V
Dual ±1.25V to ±5.5V
o
Input Voltage Range Includes Negative Supply
o
Internal Bandgap Reference
1.182V ±1% (MAX97_)
1.182V ±2% (MAX98_)
o
12μs Propagation Delay (10mV Overdrive)
o
Output Has Separate GND Pin (MAX9_1/MAX9_4)
Applications
Window Comparators
Level Translators
Oscillator Circuits
M
Ultra-Low-Power, Open-Drain,
Single/Dual-Supply Comparators
________________________________________________________________________________________ 1
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.
MAX971
MAX981
OUT
IN+
HYST
REF
V-
GND
1
V+
2
4
5
6
8
3
7
IN-
THRESHOLD DETECTOR
V
IN
Typical Operating Circuit
19-0450; Rev 3; 2/03
Ordering Information continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
P
I
P
R
I
H
P
MAX971
1%
Yes
8-Pin
DIP/SO/μMAX
8-Pin UCSP/
DIP/SO/μMAX
8-Pin
DIP/SO/μMAX
MAX972
None
No
MAX973
1%
Yes
MAX974
1%
No
16-Pin DIP/SO
MAX981
2%
Yes
8-Pin
DIP/SO/μMAX
8-Pin
DIP/SO/μMAX
8-Pin
DIP/SO/μMAX
MAX982
2%
Yes
MAX983
2%
Yes
MAX984
2%
No
16-Pin DIP/SO
C
P
P
1
2
2
4
1
2
2
4
Ordering Information
PART
TEMP RANGE
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
PIN-PACKAGE
8 Plastic Dip
8 SO
8 μMAX
MAX971
CPA
MAX971CSA
MAX971CUA
Battery-Powered
Systems
Threshold Detectors
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