The CBM2903 is the dual comparator version, and the outputs can be connected to other open-collector outputs to achieve wired-AND relationships. It can operate from 2V to 30V, and have low power consuming 0.7µA (MAX) per channel.

The CBM2903 consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage. The device is the most cost-effective solutions for applications where low offset voltage, high supply voltage capability,low supply current, and space saving are the primary specifications in circuit design for portable consumer products.

The CBM2903 is available in Green SOP-8, TSSOP-8 packages. It operates over an ambient temperature range of -40°C to +85°C.

 CBM2903 Applications

The CBM2903 is typically employed for comparing a single signal against a reference signal or for intercomparison between two signals. Many users leverage the open-drain output to drive the comparison logic output to logic voltage levels, which can then be fed into an MCU or logic devices. The wide power supply range and high voltage capability make this chip suitable for level shifting signals to higher or lower voltages, enabling level translation. Below is a typical application diagram for the CBM2903:

CBM2903 Typical Features

l Wide power supply voltage range: +2V to +30V

l Input offset voltage: ±1mV (typ)

l Low supply current: V_SUPPLY = 30V, 0.7μA(max) for each channel

l Common mode input voltage range includes grounding

l Low output saturation voltage

l Fast response time: 1.3μs

l Open drain output

l The output is compatible with TTL, MOS and CMOS

l Working temperature: - 40℃~+125℃

l Micro package: SOIC-8 (SOP8), TSSOP8

 CBM2903 Product Highlights

l Wide Supply Voltage Range: Suitable for the vast majority of high-voltage product applications without requiring modification to peripheral power supply.

 l Low Quiescent Current: Significantly reduces static power consumption of the product, contributing to energy efficiency.

 l Low Input Offset Voltage: Ensures better stability and precision in the product's performance.

 l Miniature Package: Contributes to space-saving in PCB design for the product.

CBM2903 Typical Electrical Characteristics Diagram

CBM2903 Graphs of Several Key Parameter Characteristics as follows: