General Description

The MAX154/MAX158 are high-speed multi-channel analog-to-digital converters (ADCs). The MAX154 has four analog input channels while the MAX158 has eight channels. Conversion time for both devices is 2.5µs. The MAX154/MAX158 also feature a 2.5V on-chip reference, forming a complete high-speed data acquisition

system.

Both converters include a built-in track/hold, eliminating the need for an external track/hold. The analog input range is 0V to +5V, although the ADC operates from a single +5V supply.

Microprocessor interfaces are simplified by the ADC’s ability to appear as a memory location or I/O port without the need for external logic. The data outputs use latched, three-state buffer circuitry to allow direct connection to a microprocessor data bus or system input port.

Features

♦ One-Chip Data Acquisition System

♦ Four or Eight Analog Input Channels

♦ 2.5µs per Channel Conversion Time

♦ Internal 2.5V Reference

♦ Built-In Track/Hold Function

♦ 1/2LSB Error Specification

♦ Single +5V Supply Operation

♦ No External Clock

♦ New Space-Saving SSOP Package

Applications

Digital Signal Processing

High-Speed Data Acquisition

Telecommunications

High-Speed Servo Control

Audio Instrumentation