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TSM971CSA+T Datasheet(PDF) 1 Page - Touchstone Semiconductor Inc |
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TSM971CSA+T Datasheet(HTML) 1 Page - Touchstone Semiconductor Inc |
1 / 18 page 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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