MAX158BEAI+

Analog To Digital Converters (ADC) Overview

The MAX158BEAI+ is an 8-bit CMOS analog-to-digital converter featuring eight multiplexed analog input channels. It operates from a single +5V supply and includes an internal 2.5V voltage reference. The device utilizes a half-flash architecture with a built-in track/hold function, eliminating the need for external components. Conversion time is typically 2.0µs in Mode 0 operation. It provides latched three-state data outputs compatible with microprocessor buses. The component is housed in a 28-pin SSOP package and supports an operating temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated eight-channel analog multiplexer with internal track/hold circuitry
• Built-in 2.5V precision voltage reference eliminates external requirements
• Latched three-state digital outputs enable direct microprocessor bus interfacing
• Dual-mode interface supporting WAIT state synchronization or continuous read operations

Analog To Digital Converters (ADC) Applications

• Digital signal processing systems
• High-speed data acquisition networks
• Telecommunications equipment
• Audio instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'E' confirms the extended industrial temperature range of -40°C to +85°C. Confirm the 'A' suffix indicates the ±1 LSB total unadjusted error specification. Ensure the 'I' suffix corresponds to the 28-lead shrink small-outline package (SSOP). Cross-reference the manufacturer's current lifecycle status as this component may be subject to obsolescence notices.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an integrated solution combining an 8-bit ADC, multiplexer, and reference is required. The MAX158BEAI+ is suitable for applications needing up to eight single-ended inputs sampled at high speeds. Consider the ±1 LSB accuracy specification against system requirements. Verify that the 28-pin SSOP footprint fits the target PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX154/MAX158 family of high-speed CMOS ADCs. The MAX158 variant specifically provides eight analog input channels, whereas the MAX154 offers four. Both share identical conversion architectures and timing characteristics. The BEAI+ designation identifies the specific combination of accuracy grade, temperature range, and packaging style within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitutes include the MAX158AEAI+, which shares the same package and pinout but offers ±1/2 LSB accuracy. Other family members like the MAX158BCAI+ provide alternative accuracy grades. Direct functional replacements require matching the 8-bit resolution, 8-channel multiplexing, and 28-pin SSOP form factor.