Touchstone intros two low-power, low-voltage comparators for power-sensitive apps

USA: Touchstone Semiconductor, a developer of high-performance, low power analog integrated circuit solutions, has announced the TS9002 dual and the TS9004 quad low power analog comparators plus 1.182-V reference integrated circuits.

As an improved, pin-for-pin functional equivalent to the MAX923, the TS9002’s 3.2-µA supply current is 16 percent lower and its ±0.75% initial accuracy voltage reference is 25 percent lower in both specifications compared to the MAX923. As an improved, pin-for-pin functional equivalent to the MAX934, the TS9004’s 4.1-µA supply current is 25 percent lower and its ±1 percent initial accuracy reference is 50 percent lower in both specifications compared to the MAX934.

Ideal for 3V or 5V single-supply applications, the TS9002 dual and the TS9004 quad comparator can operate from single +2.5V to +11V supplies or from ±1.25V to ±5V dual supplies. Other common features include: a) an input voltage range from the negative supply rail to within 1.3V of the positive supply; b) 7-µs propagation delay; c) a push-pull output stage with 40mA source-current drive capability; and d) crowbar-current free output stage switching.

Both comparators are designed for low-voltage, low-power applications, including threshold detectors/discriminators, oscillator circuits, window comparators, level translators, and other battery-powered systems.

TS9002 dual comparator
* Priced at $0.75 in 1000-piece quantities - $2.10 Less Expensive than MAX923.
* 16 percent lower supply current: 3.2µA vs 4.1µA
* 25 percent lower VREF initial accuracy: ±0.75 percent vs ±1 percent.
* User-adjustable hysteresis via external HYST pin.

TS9004 quad comparator
* Priced at $1.15 in 1000-piece quantities - $0.60 less expensive than MAX934.
* 25 percent lower supply current: 4.1µA vs 5.5µA.
* 50 percent lower VREF initial accuracy: ±1 percent vs ±2 percent.
* Separate GND pin for output drivers.

Both parts are fully specified over the -40ºC to +85ºC temperature range. The TS9002 is available in an 8-pin MSOP package and the TS9004 is available in a narrow 16-pin SOIC package. Both products are in stock and ready to ship from Digi-Key, Touchstone’s authorized distributor.