DDC2256A
Features
- 1 Single-Chip Solution to Directly Measure 256 Low Level Currents Simultaneously
- User Adjustable Full-Scale Range
- Adjustable Speed with Integration Times as Low as 58.8 µs (17 KSPS per channel) with 24 bit Resolution
- Power Dissipation as Low as 1.7m W/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
- Serial LVDS and CMOS Output Interface Option
2 Applications
- CT Scanner Data Acquisition System
- Photodiode Sensors
- X-ray Detection Systems
- Optical Fiber Power Monitoring
- Mutichannel Current/Voltage Instrumentation
3 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...
