Analog Devices MX7575 Product Info

• Fast Conversion Time:
  • 5µs (MX7575)
  • 10µs (MX7576)
• Built-In Track/Hold Function (MX7575)
• Low Total Unadjusted Error (±1LSB max)
• 50kHz Full-Power Signal Bandwidth (MX7575)
• Single +5V Supply Operation
• 8-Bit µP Interface
• 100ns Data-Access Time
• Low Power: 15mW
• Small-Footprint Packages

Maxim's MX7575/MX7576 are high-speed (5µs/10µs), microprocessor (µP) compatible, 8-bit analog-to-digital converters (ADCs). The MX7575 provides an on-chip track/hold function that allows full-scale signals up to 50kHz (386mV/µs slew rate) to be acquired and digitized accurately. Both ADCs use a successive-approximation technique to achieve their fast conversions and low power dissipation. The MX7575/MX7576 operate with a +5V supply and a 1.23V external reference. They accept input voltages ranging from 0V to 2V_REF.

The MX7575/MX7576 are easily interfaced to all popular 8-bit µPs through standard CS and RD control signals. These signals control conversion start and data access. A BUSY signal indicates the beginning and end of a conversion. Since all the data outputs are latched and three-state buffered, the MX7575/MX7576 can be directly tied to a µP data bus or system l/O port.

Maxim also makes the MAX165, a plug-in replacement for the MX7575 with an internal 1.23V reference. For applications that require a differential analog input and an internal reference, the MAX166 is recommended.

Applications

• Audio Systems
• Digital Signal Processing (DSP)
• High-Speed Data Acquisition
• High-Speed Servo Loops
• Low-Power Data Loggers
• Telecommunications