ADCMP602BRMZ

Overview

The ADCMP602BRMZ is a single-channel, rail-to-rail analog comparator from Analog Devices, housed in an 8-lead MSOP package. It operates on a single supply voltage ranging from 2.5 V to 5.5 V. The device features a propagation delay of 3.5 ns at 50 mV overdrive and consumes 10 mW at 3.3 V. Key electrical parameters include a typical input offset voltage of ±2 mV, bias current of ±2 µA, and power supply rejection ratio exceeding 50 dB. It includes dedicated pins for shutdown control and latch/hysteresis configuration.

Feature Summary

• Features a low-glitch CMOS/TTL-compatible output stage capable of driving capacitive loads with graceful degradation.
• Includes a dedicated shutdown pin for power management and a latch enable pin for programmable hysteresis or latching functionality.
• Supports split input/output supply configurations without sequencing restrictions to allow independent output swing control.
• Provides robust protection against large input overdrive conditions without phase reversal.

Applications

• High speed instrumentation
• Clock and data signal restoration
• Logic level shifting or translation
• Threshold detection
• Automatic test equipment (ATE)

Procurement Notes

Verify the specific ordering suffix BRMZ corresponds to the MSOP-8 package variant when sourcing. Confirm that the required application supports the single-supply operation range of 2.5 V to 5.5 V. Ensure the design accommodates the separate VCCI and VCCO pins if utilizing split supply modes for optimal performance. Check datasheet specifications for thermal resistance values relevant to the PCB layout environment.

Selection Notes

Select this component when a single-channel comparator with integrated latch and shutdown capabilities is required. It is suitable for applications needing rail-to-rail input common-mode ranges extending slightly beyond the supply rails. Consider this part for designs requiring programmable hysteresis via a single pin rather than external feedback networks. Verify that the 3.5 ns propagation delay meets the timing requirements of the target circuit.

Part Context

The ADCMP602 is part of the ADCMP600/601/602 family fabricated on Analog Devices' proprietary XFCB2 process. While the ADCMP600 offers five leads and the ADCMP601 offers six leads, the ADCMP602 specifically provides eight leads in an MSOP package. This additional footprint accommodates the separate input and output supply pins as well as the dedicated shutdown control pin not present in the other family members.

Replacement Considerations

The datasheet identifies the device as an improved replacement for the MAX999. Designers transitioning from the MAX999 should verify pinout compatibility and ensure that the latch and shutdown functionalities are properly implemented in the new schematic.

FAQ

How is the hysteresis value controlled on the ADCMP602?

Hysteresis is controlled via the LE/HYS pin by connecting an external pull-down resistor or current source to ground. Leaving the pin disconnected results in a fixed hysteresis of approximately 2 mV, while driving it high removes hysteresis entirely.

Can the ADCMP602 operate with separate input and output supplies?

Yes, the ADCMP602 supports split input/output supplies (VCCI and VCCO) with no sequencing restrictions. This allows for a wide input signal range while enabling independent control over the output swing and potential power savings.