The MAX1917EEE is a monolithic, CMOS, 12-bit analog-to-digital converter (ADC) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial μP interface. The MAX1917EEE has a 7.5μs conversion time, a 2μs acquisition time, and a guaranteed 100ksps sample rate. The MAX1917EEE operates from a single +5V supply or from dual ±5V supplies, allowing ground-referenced bipolar input signals. The device features a logic power-down input, which reduces the 3mA VDD supply current to 50μA max, including the internal-reference current. Decoupling capacitors are the only external components needed for the power supply and reference. This ADC operates with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors. The MAX1917EEE provides three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI, QSPI, and MICROWIRE serial-interface standards.
Feature
- 12-Bit Resolution, 1/2 LSB Linearity
- +5V or ±5V Operation
- Built-In Track/Hold
- Internal Reference with Adjustment Capability
- Low Power:
- 3mA Operating Mode
- 20μA Power-Down Mode
- 100ksps Tested Sampling Rate
- Serial and 8-Bit Parallel μP Interface
- 24-Pin Narrow DIP and Wide SO Packages
Applications
- Automated Test Equipment (ATE)
- Battery-Powered Data Logging
- Data Acquisition
- Digital Signal Processing (DSP)
- Electromechanical Systems
- High-Accuracy Process Control
- PC Pen Digitizers
- Telecommunications
