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HA Quadruple Comparators. Description. The HA and HA series products are comparators designed for use in power or control systems. HA Datasheet PDF Download – Quadruple Comparators, HA data sheet. HA from Hitachi, Ltd.. Find the PDF Datasheet, Specifications and Distributor Information.

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With the circuit constants shown in figure 7. Extremely low current drain: For further information write to: Input Bias Current I.

Design your application so that the product is used within the ranges guaranteed by Hitachi particularly. Wide power-supply voltage range: Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Electrical Characteristics 1 V. Noninverting Comparator with Hysteresis. These IC operate from a single power-supply voltage over a wide range of voltages, and feature a reduced power-supply current since the power-supply voltage is determined independently.

Electrical Characteristics 2 V. Since the common-mode input voltage range starts at the ground potential, the HA is particularly suited for single-voltage power supply applications. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor.


Figure 4 Operating Waveforms.

HA 데이터시트(PDF) – Hitachi Semiconductor

Hitachi makes every attempt to ensure that its products are of high quality and reliability. Hitachi Semiconductor America Inc. Low input offset voltage: Figure 4 shows the waveforms generated by this circuit. The charge and discharge circuits in the circuit from figure 1 are separated by diodes in this circuit. Search field Part name Part description.

Output Sink Current vs.

Low input bias current: Inverting Comparator with Hysteresis. Products and product specifications may be subject to change without notice. Figure 8 shows the input characteristics. Output Voltage Vout V. The HA houses four independent comparators in a single package, and operates over a wide voltage range at low power from a single-voltage power supply.

Then, when the A. In this circuit, the noninverting input will essentially beheld at the potential determined by dividing V. Frequency control voltage input. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without.


D Feldkirchen, Munich Germany Tel: Output saturation voltage V.

When the input voltage V. This allows the pulse width and the duty cycle to be set independently. FPDA — Conforms 0.

When the output of the integrator A. With the circuit constants shown in figure 9. Figure 11 Zero-Cross Detector.

Hitachi Semiconductor

The circuit shown in figure 6 is a basic comparator. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product.

This section presents several sample HA applications.