TSM971/72/73/82/84
Ultra-Low-Power, Open-Drain Single/Dual-Supply Comparators
FEATURES
♦ Alternate source for:
MAX971/MAX972/MAX973/MAX982/MAX984
♦ Ultra-Low Quiescent Current Over Temperature
TSM971 Single+Reference: 4μA (max)
TSM972: Dual Comparator Only: 4μA (max)
TSM973/TSM982 Dual+Reference: 6μA (max)
TSM984 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
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 3μA 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.
APPLICATIONS
Threshold Detectors
Window Comparator
Level Translators
Oscillator Circuits
Battery-Powered Systems
TYPICAL APPLICATION CIRCUIT
A 5V, Low-Parts-Count Window Detector
PART
TSM971
TSM972
TSM973
TSM982
TSM984
INTERNAL COMPARATORS INTERNAL
REFERENCE PER PACKAGE HYSTERESIS
Yes, ±1%
1
Yes
No
2
No
Yes, ±1%
2
Yes
Yes, ±2%
2
Yes
Yes, ±2%
4
No
PART
TSM971C
TSM971E
TSM972C
TSM972E
TSM973C
TSM973E
TSM982C
TSM982E
TSM984C
TSM984E
The Touchstone Semiconductor logo is a registered
trademark of Touchstone Semiconductor, Incorporated.
TEMPERATURE
RANGE
0ºC to 70ºC
-40ºC to 85ºC
0ºC to 70ºC
-40ºC to 85ºC
0ºC to 70ºC
-40ºC to 85ºC
0ºC to 70ºC
-40ºC to 85ºC
0ºC to 70ºC
-40ºC to 85ºC
PACKAGE
8-Pin MSOP/SOIC
8-Pin MSOP/SOIC
8-Pin MSOP/SOIC
8-Pin MSOP/SOIC
16-Pin SOIC
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© 2012 Touchstone Semiconductor, Inc. All rights reserved.