TS9002IM8T

Overview

The TS9002IM8T is a low-voltage, micropower dual analog comparator in an 8-pin MSOP package. It operates from single +2.5V to +11V or dual ±1.25V to ±5.5V supplies. The device features ultra-low quiescent current of 4μA (max) for both comparators and the reference. It includes an internal 1.182V ±0.75% voltage reference and adjustable hysteresis via a dedicated HYST pin. Propagation delay is 7μs with push-pull TTL/CMOS-compatible outputs capable of continuous 40mA source current.

Feature Summary

• Ultra-low power consumption with maximum 4μA quiescent current for both comparators and the integrated reference.
• Integrated precision 1.182V voltage reference with ±0.75% initial accuracy.
• Dedicated HYST pin allows for external adjustment of hysteresis to prevent oscillation.
• Push-pull output stage provides TTL/CMOS compatibility and high continuous source current capability.

Applications

• Threshold detectors
• Window comparators
• Level translators
• Oscillator circuits
• Battery-powered systems

Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging containing 2500 units, distinct from the tube-packaged 'TS9002IM8'. Confirm lead-free compliance as Silicon Labs supplies only lead-free packaging. Ensure the application environment remains within the specified -40°C to +85°C operating temperature range for guaranteed electrical characteristics.

Selection Notes

Select this component for designs requiring dual comparators with minimal supply current draw. The wide common-mode input range extending to the negative rail simplifies interface with various signal sources. The inclusion of an on-board reference reduces external component count compared to standard dual comparators. Verify that the required hysteresis can be achieved using the available HYST pin configuration and external resistors.

Part Context

The TS9002 belongs to Silicon Laboratories' NanoWatt Analog portfolio, designed for high-performance analog applications with strict power constraints. It serves as a form-factor identical replacement for the MAX923 but offers improved electrical specifications, including lower supply current and better reference accuracy. This positioning targets cost-sensitive, battery-operated consumer and industrial electronics.

Replacement Considerations

The datasheet identifies the TS9002 as form-factor identical to the Maxim Integrated MAX923 analog comparator. Designers replacing other components should verify pinout compatibility and ensure the alternative meets the specific quiescent current and reference accuracy requirements of the original design.

FAQ

How is hysteresis configured on the TS9002?

Hysteresis is added via the dedicated HYST pin. Connecting HYST to REF disables hysteresis. External resistors connected between REF, HYST, and V- allow for adjustable hysteresis bands up to 100mV.

What is the input common-mode voltage range?

The input common-mode voltage range extends from the negative supply rail (V-) to within 1.3V of the positive supply rail (V+).

Can the TS9002 operate with dual supplies?

Yes, the device supports dual supplies ranging from ±1.25V to ±5.5V, in addition to single supplies from +2.5V to +11V.