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TSM971CSA+T Datasheet(PDF) 1 Page - Touchstone Semiconductor Inc

Part # TSM971CSA+T
Description  Ultra-Low-Power, Open-Drain Single/Dual-Supply Comparators
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Manufacturer  TOUCHSTONE [Touchstone Semiconductor Inc]
Direct Link  http://www.touchstonesemi.com
Logo TOUCHSTONE - Touchstone Semiconductor Inc

TSM971CSA+T Datasheet(HTML) 1 Page - Touchstone Semiconductor Inc

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TSM971/72/73/82/84
Page 1
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
FEATURES
♦ Alternate source for:
MAX971/MAX972/MAX973/MAX982/MAX984
♦ Ultra-Low Quiescent Current Over Temperature
TSM97
1 Single+Reference: 4μA (max)
TSM972: Dual Comparator Only:
4μA (max)
TSM973/TSM982
Dual+Reference: 6μA (max)
TSM98
4 Quad+Reference: 8.5μA (max)
♦ Single or Dual Power Supplies:
Single: +2.5V to +11V
Dual: ±1.25V to ±5.5V
♦ Input Voltage Range Includes Negative Supply
♦ 12μs Propagation Delay at 10mV Overdrive
♦ Open-drain Output Stages for Wired-OR
Applications
♦ Internal 1.182V±1% Reference: TSM971/TSM973
♦ Internal 1.182V±2% Reference: TSM982/TSM984
♦ Adjustable Hysteresis: TSM971/TSM973/TSM982
♦ Separate Output GND Pin: TSM971/TSM984
APPLICATIONS
Threshold Detectors
Window Comparator
Level Translators
Oscillator Circuits
Battery-Powered Systems
DESCRIPTION
The
TSM971/972/973/982/984
family
of
single/dual/quad,
low-voltage,
micropower
analog
comparators is electrically and form-factor identical to
the
MAX971/972/973/982/984
family
of
analog
comparators. Ideal for
3V or 5V single-supply
applications, this comparator family can operate from
single +2.5V to +11V supplies or from ±1.25V to
±5.5V dual supplies. The single TSM971 and the dual
TSM972
draw less than 4μA (max) supply current
over temperature. The TSM973/TSM982 duals and
the quad TSM984 draw less than 3
μA per comparator
over temperature.
All comparators in this family exhibit an input voltage
range from the negative supply rail to within 1.3V of
the
positive
supply.
Wired-OR
applications
are
enabled as the comparators’ output stages are open-
drain.
A
1.182V
reference
is
internal
to
the
TSM971/TSM973 (±1%) and the TSM982/TSM984
(±2%). Without complicated feedback configurations
and only requiring two additional resistors, adding
external hysteresis is available on the TSM971,
TSM973, and the TSM982.
Ultra-Low-Power, Open-Drain Single/Dual-Supply Comparators
TYPICAL APPLICATION CIRCUIT
A 5V, Low-Parts-Count Window Detector
PART
INTERNAL
REFERENCE
COMPARATORS
PER PACKAGE
INTERNAL
HYSTERESIS
TSM971
Yes, ±1%
1
Yes
TSM972
No
2
No
TSM973
Yes, ±1%
2
Yes
TSM982
Yes, ±2%
2
Yes
TSM984
Yes, ±2%
4
No
PART
TEMPERATURE
RANGE
PACKAGE
TSM971C
0ºC to 70ºC
8-Pin MSOP/SOIC
TSM971E
-40ºC to 85ºC
TSM972C
0ºC to 70ºC
8-Pin MSOP/SOIC
TSM972E
-40ºC to 85ºC
TSM973C
0ºC to 70ºC
8-Pin MSOP/SOIC
TSM973E
-40ºC to 85ºC
TSM982C
0ºC to 70ºC
8-Pin MSOP/SOIC
TSM982E
-40ºC to 85ºC
TSM984C
0ºC to 70ºC
16-Pin SOIC
TSM984E
-40ºC to 85ºC
The Touchstone Semiconductor logo is a registered
trademark of Touchstone Semiconductor, Incorporated.


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