Analog Devices MAX153 Product Info

• 660ns Conversion Time
• Power-Up/Power-Down in 200ns
• Internal Track/Hold
• 1Msps Throughput
• Low Power
  • 40mW (Operating Mode)
  • 5µW (Power-Down Mode)
• 1MHz Full-Power Bandwidth
• 20-Pin Narrow DIP, SO, and SSOP Packages
• No External Clock Required
• Unipolar/Bipolar Inputs
• Single +5V or Dual ±5V Supplies
• Ratiometric Reference Inputs

The MAX153 high-speed, microprocessor (µP)-compatible, 8-bit analog-to-digital converter (ADC) uses a half-flash technique to achieve a 660ns conversion time, and digitizes at a rate of 1M samples per second (Msps). It operates with single +5V or dual ±5V supplies and accepts either unipolar or bipolar inputs. An active-low POWERDN (power-down) pin reduces current consumption to a typical value of 1µA (with 5V supply). The part returns from power-down to normal operating mode in less than 200ns, providing large reductions in supply current in applications with burst-mode input signals.

The MAX153 is DC and dynamically tested. Its µP interface appears as a memory location or input/output port that requires no external interface logic. The data outputs use latched, three-state buffered circuitry for direct connection to a µP data bus or system input port. The ADC’s input/reference arrangement enables ratiometric operation.

Applications

• Battery-Powered Systems
• Burst-Mode Data Acquisition
• Cellular Telephones
• Digital-Signal Processing
• High-Speed Servo Loops
• Portable Radios
• Telecommunications