The MAX1522EUT+T high-speed, microprocessor (μP)-compatible, 8-bit analog-to-digital converter (ADC) uses a half-flash technique to achieve a 1.8μs conversion time, and digitizes at a rate of 400k samples per second (ksps). It operates with single +3V or dual ±3V supplies and accepts either unipolar or bipolar inputs. A POWERDOWN-bar pin reduces current consumption to a typical value of 1μA. The part returns from power-down and acquires an input signal in less than 900ns, providing large reductions in supply current in applications with burst-mode input signals. The MAX1522EUT+T 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. A fully-assembled evaluation kit provides a proven PC board layout to speed prototyping and design.
Feature
- Single +3.0V to +3.6V Supply
- 1.8μs Conversion Time
- Power-Up in 900ns
- Internal Track/Hold
- 400ksps Throughput
- Low Power:
- 1.5mA (Operating Mode)
- 1μA (Power-Down Mode)
- 300kHz Full-Power Bandwidth
- 20-Pin DIP, SO and SSOP Packages
- No External Clock Required
- Unipolar/Bipolar Inputs
- Ratiometric Reference Inputs
- 2.7V Version Available -Contact Factory
Applications
- Audio Systems
- Battery-Powered Applications
- Burst Mode? Data Acquisition
- Digital Signal Processing (DSP)
- High-Speed Servo Loops
- Portable Radios
- Telecommunications
