Model Information for MAX908ESD

General Description

The MAX908ESD is a quad high-speed, ultra-low-power voltage comparator designed for use in systems powered from a single +5V supply. It is part of the MAX907/MAX908/MAX909 family, which also includes dual and single comparators. These devices are known for their low power consumption and high-speed performance, making them suitable for a variety of applications.

Key Features

• High-Speed Performance: Achieves a 40ns propagation delay with only 3.5mW power consumption per comparator.
• Ultra-Low Power: Operates with a supply current of 700µA per comparator.
• Single Supply Operation: Designed to operate from a single +5V supply.
• Wide Input Range: Input common-mode range extends from 200mV below ground to within 1.5V of the positive supply rail.
• Internal Hysteresis: Ensures clean output switching even with slow-moving input signals.
• TTL-Compatible Outputs: No external pull-up circuitry required.
• Short-Circuit Protection: Inputs and outputs can be continuously shorted to either supply rail without damage.

Pin Configuration

The MAX908ESD is available in a 14-pin SO (Small Outline) package. The pin configuration is as follows:

TableCopy

Applications

• Battery-Powered Systems: Ideal for low-power applications.
• High-Speed A/D Converters: Suitable for high-speed analog-to-digital conversion.
• High-Speed V/F Converters: Applicable in voltage-to-frequency conversion circuits.
• Line Receivers: Can be used in line receiver applications.
• Threshold Detectors/Discriminators: Effective for threshold detection and discrimination.
• High-Speed Sampling Circuits: Suitable for high-speed sampling applications.
• Zero-Crossing Detectors: Useful in zero-crossing detection circuits.

Ordering Information

• Part Number: MAX908ESD
• Package Type: 14-pin SO (Small Outline)
• Temperature Range: -40°C to +85°C

Electrical Characteristics

• Positive Supply Voltage (V+ to GND): +6V
• Differential Input Voltage: -0.3V to (V+ + 0.3V)
• Common-Mode Input Voltage: -0.3V to (V+ + 0.3V)
• Output Low Voltage (VOL): 0.4V (ISINK = 3.2mA)
• Output High Voltage (VOH): 3.0V (ISOURCE = 100µA)
• Propagation Delay (tPD): 40ns (with 5mV input overdrive)
• Power Dissipation per Comparator (PD): 3.5mW

Absolute Maximum Ratings

• Positive Supply Voltage (V+ to GND): +6V
• Negative Supply Voltage (V- to GND, MAX909 only): -7V
• Differential Input Voltage: -0.3V to (V+ + 0.3V)
• Common-Mode Input Voltage: -0.3V to (V+ + 0.3V)
• Continuous Power Dissipation: 667mW (14-pin SO package)

Detailed Specifications

• Input Offset Voltage (VOS): 1mV to 3.5mV
• Input Bias Current (IB): 200nA to 500nA
• Input Offset Current (IOS): 50nA to 100nA
• Common-Mode Rejection Ratio (CMRR): 75µV/V to 300µV/V
• Power-Supply Rejection Ratio (PSRR): 75µV/V to 400µV/V