DDC2256A Description
The DDC2256A is a 24-bit, 256-channel, currentinput analog-to-digital (A/D) converter. It bines both current-to-voltage integration and A/D conversion so that 256 individual low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized in parallel (simultaneously). For each of the inputs, the DDC2256A has one low noise/low power integrator designed to capture all the...
DDC2256A Key Features
- 1 Single-Chip Solution to Directly Measure 256 LowLevel Currents Simultaneously
- User Adjustable Full-Scale Range
- Adjustable Speed with Integration Times as Low
- Power Dissipation as Low as 1.7mW/channel
- Integral Linearity: ±0.025% of Reading ±1 ppm of Full Scale Reading (all channels active)
- Low Noise
- 24 bit ADC
- No Charge Loss and Simultaneous Sampling
- On-board Temperature Sensor
- In-Package Bypass Capacitors and Reference Buffer to Reduce PCB Area and Design plexity