Tuesday, January 15, 2013

Touchstone intros TSM921/TSM931/TSM971/TSM982 series of second-source Maxim analog comparators

USA: Touchstone Semiconductor, a developer of high-performance, low power analog integrated circuit solutions, announced the TSM921-TSM924, TSM931-TSM934, TSM971-TSM973 and the TSM982/TSM984 series of low voltage, low-power analog comparators.

All 13 analog comparators are lower cost, electrically and form-factor identical to their Maxim’s analog comparator equivalents. Eleven of the 13 analog comparators feature an integrated 1.182V voltage reference with either ±1 percent (TSM92x/TSM97x) or ±2% (TSM93x/TSM98x) initial accuracy. Also, all 13 analog comparators are offered in both commercial and industrial temperature ranges.

Touchstone’s alternate-source parts are drop-in replacements that can be used instead of the original manufacturer’s ICs. No other changes to an existing design are required. All Touchstone semiconductor integrated circuits (ICs) are in stock at and ready to ship from Digi-Key, Touchstone’s authorized distributor.

Ideal for 3V or 5V single-supply applications, these comparators can operate from a single +2.5V to +11V supply or a ±1.25V to ±5V dual supply. Other common features include: a) an input voltage range from the negative supply rail to within 1.3V of the positive supply and b) 4-┬Ás propagation delay. Single and dual comparators in these series also offer the board-level design engineer the ability to use two resistors to add hysteresis without feedback and without having to navigate complicated equations.

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