Touchstone Semiconductor has released single dual and quad analog comparators that offer up to a $2 savings over parts offered by Maxim Integrated Products.
Touchstone’s second-source Maxim comparators include the TSM921–TSM924, TSM931–TSM934, TSM971, TSM972, and TSM973 and TSM982/TSM984 series.
According to Touchstone, 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% (TSM92x/TSM97x) or ±2% (TSM93x/TSM98x) initial accuracy. Also, all 13 analog comparators are offered in both commercial and industrial temperature ranges.
Aimed at 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-µs 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.
Low-voltage, power-sensitive applications include threshold detectors/discriminator, oscillator circuits, window comparators, level translators and other battery-powered systems.
All single and dual comparators are available in either MSOP-8 or SOIC-8 packaging while the quad comparators are available in 150-mil wide SOIC-16 packaging. Analog comparators available in the ‘C’ temperature-grade are fully-specified over the 0ºC to +70ºC temperature range. Analog comparators available in the ‘E’ temperature grade are fully specified over the -40ºC to +85ºC temperature range.
Pricing: In 1,000-piece quantities, pricing for dual-only comparators and single comparators with references start at $0.45; pricing for dual comparators with voltage references start at $0.75; and pricing for quad comparators with references start at $1.15.
Availability: In stock at and ready to ship from Digi-Key, Touchstone’s authorized distributor.